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Real Time Clocks

Real Time Clocks (RTCs) enable accurate timekeeping in electronic systems. Key attributes include Current, Date Format, and Operating Temperature, which are essential for ensuring compatibility and performance in various applications. These components are commonly used in new product design and prototyping, as well as in production electronics assembly.

2,387 active parts
28 manufacturers
30 distributors
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What are Real Time Clocks ?

Real Time Clocks (RTCs) are integrated circuits designed to keep track of the current time and date, even when the main power is off. They are widely used in applications such as timers, clocks, and scheduling devices in consumer electronics and industrial systems. Important specifications for selecting RTCs include Current, which affects power consumption; Date Format, which determines how the time is displayed; and Operating Temperature, which ensures reliable performance in different environments. Procurement teams should validate lifecycle status and consider alternate-source options to mitigate sourcing risks.

Parts in this category

Compare stocked parts across manufacturers and distributors, then add lines to your RFQ.

Part & Mfr Total Stock Pricing & RFQ Accuracy Applications Clock Frequency Conflict Minerals Current Date Format Failure Rate Features Function Halogen Free Height Industrial Grade Input Voltage Interface Interrupt Output Lead Spacing Lead Style Length Memory Size Mounting Style Mounting Type Number of Pins Operating Range Operating Temperature Operating Voltage Package / Case Product Type Storage Temperature Supplier Device Package Supplier Package Supply Current Supply Voltage Tape & Reel Temperature Range Termination Style Time Format Type Voltage Voltage Supply Watchdog Timer Width
ISL1208IB8Z-TK
ISL1208IB8Z-TK
Renesas
360,534
Across 2 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 360,000 - -
Braun Electronic Components 534 - -
Price on request
360,534
Distributor Stock MOQ Country
Components Technology Group, Inc. 360,000 - -
Braun Electronic Components 534 - -
- - - - 4µA ~ 6µA @ 3V ~ 5V YY-MM-DD-dd - Alarm, Leap Year, SRAM - - - - - I²C, 2-Wire Serial - - - - 2B - Surface Mount - - -40°C ~ 85°C - - - - 8-SOIC - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.8V ~ 5.5V - - -
DS1302Z
DS1302Z
Download Datasheet for DS1302Z
Analog Devices / Maxim Integrated
334,742
Across 6 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 325 - -
Fe Components 2,500 - -
Speed Components Ltd 250 - -
Romaks Technologies 328,727 - -
Xingangxin 2,774 - -
Smaxon Electronics 166 - -
Price on request
334,742
Distributor Stock MOQ Country
Components Technology Group, Inc. 325 - -
Fe Components 2,500 - -
Speed Components Ltd 250 - -
Romaks Technologies 328,727 - -
Xingangxin 2,774 - -
Smaxon Electronics 166 - -
- - - - 0.3µA YY-MM-DD-dd - Leap Year, NVSRAM, Trickle-Charger - - - - - Simple 3-Wire Interface - 3.90 mm - - 31B - Surface Mount - - 0°C - - - - 8-SOIC - - - No - - HH:MM:SS (12/24 hr) Clock/Calendar 2V - - -
M41T82SM6F
M41T82SM6F
STMicroelectronics
295,785
Across 3 distributors
Distributor Stock MOQ Country
Fe Components 292,500 - -
MW.FEP S.p.A. 50 - -
Xingangxin 3,235 - -
Price on request
295,785
Distributor Stock MOQ Country
Fe Components 292,500 - -
MW.FEP S.p.A. 50 - -
Xingangxin 3,235 - -
- - - - 10µA YY-MM-DD-dd - Alarm, Leap Year, SRAM, Watchdog Timer - - - - - I²C, 2-Wire Serial - - - - 7B - Surface Mount - - -40°C - - - - 8-SOIC - - - - - - HH:MM:SS:hh (24 hr) Clock/Calendar 2V - - -
PCF85063ATL/1,118
PCF85063ATL/1,118
Download Datasheet for PCF85063ATL/1,118
NXP Semiconductors
171,852
Across 3 distributors
Distributor Stock MOQ Country
Fe Components 168,000 - -
Braun Electronic Components 12 - -
Optech Co.,Limited 3,840 - -
Price on request
171,852
Distributor Stock MOQ Country
Fe Components 168,000 - -
Braun Electronic Components 12 - -
Optech Co.,Limited 3,840 - -
- - - - 0.22 μA at 3.3 V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output - - - - - I²C, 2-Wire Serial - - - - - - Surface Mount - - -40 °C to +85 °C 0.9 V to 5.5 V - - °C ~ °C 10-DFN (2.6x2.6) - - - No - - HH:MM:SS (12/24 hr) Clock/Calendar 0.9V ~ 5.5V - - -
DS1338Z-33
DS1338Z-33
Download Datasheet for DS1338Z-33
Analog Devices / Maxim Integrated
120,690
Across 6 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 20,000 - -
Fe Components 463 - -
Speed Components Ltd 80 - -
Romaks Technologies 97,730 - -
Xingangxin 1,874 - -
Smaxon Electronics 543 - -
Price on request
120,690
Distributor Stock MOQ Country
Components Technology Group, Inc. 20,000 - -
Fe Components 463 - -
Speed Components Ltd 80 - -
Romaks Technologies 97,730 - -
Xingangxin 1,874 - -
Smaxon Electronics 543 - -
- - 0.032768 MHz - 125µA ~ 200µA @ 3.63V ~ 5.5V YY-MM-DD-dd - Leap Year, NVSRAM, Square Wave Output - - - - - I²C, 2-Wire Serial - - - - 56B - Surface Mount - - -40°C ~ 85°C - - - - 8-SOIC - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.3V ~ 3.7V - - -
DS1307Z
DS1307Z
Download Datasheet for DS1307Z
Analog Devices / Maxim Integrated
119,194
Across 6 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 4,000 - -
Romaks Technologies 114,430 - -
Hybrid Electronics 204 - -
Xingangxin 364 - -
Akira Global 10 - -
Smaxon Electronics 186 - -
Price on request
119,194
Distributor Stock MOQ Country
Components Technology Group, Inc. 4,000 - -
Romaks Technologies 114,430 - -
Hybrid Electronics 204 - -
Xingangxin 364 - -
Akira Global 10 - -
Smaxon Electronics 186 - -
- - - - 200µA YY-MM-DD-dd - Leap Year, NVSRAM, Square Wave Output; Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100; 56-Byte, Battery-Backed, General-Purpose RAM with Unlimited Writes; Programmable Square-Wave Output Signal; Automatic Power-Fail Detect and Switch Circuitry - - - - - I2C Serial Interface - - - - 56B - Surface Mount - - -40°C to +85°C - - - - 8-SOIC - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2V ~ 3.5V - - -
DS1307Z/TR
DS1307Z/TR
Download Datasheet for DS1307Z/TR
Analog Devices / Maxim Integrated
115,206
Across 3 distributors
Distributor Stock MOQ Country
Romaks Technologies 109,576 - -
Xingangxin 1,630 - -
Smaxon Electronics 4,000 - -
Price on request
115,206
Distributor Stock MOQ Country
Romaks Technologies 109,576 - -
Xingangxin 1,630 - -
Smaxon Electronics 4,000 - -
- - - - 200µA @ 5V YY-MM-DD-dd - Leap Year, NVSRAM, Square Wave Output - - - - - I²C - 3.9 mm - - 56B - Surface Mount - - 0°C ~ 70°C (TA) - - - - 8-SOIC - - - No - - HH:MM:SS (12/24 hr) Clock/Calendar 2V ~ 3.5V 5V - -
AB0805-T3
AB0805-T3
Abracon LLC
107,460
Across 4 distributors
Distributor Stock MOQ Country
Braun Electronic Components 1,230 - -
AA2DE 9,000 - -
MW.FEP S.p.A. 1,230 - -
Smaxon Electronics 96,000 - -
Price on request
107,460
Distributor Stock MOQ Country
Braun Electronic Components 1,230 - -
AA2DE 9,000 - -
MW.FEP S.p.A. 1,230 - -
Smaxon Electronics 96,000 - -
- - - - 0.17µA ~ 0.22µA YY-MM-DD-dd - Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer - - - - - I²C, 2-Wire Serial - - - - 256 B - Surface Mount - - -40°C - - - - 16-QFN (3x3) - - - - - - HH:MM:SS:hh Clock/Calendar 1.5V ~ 3.6V - - -
DS1339U-33
DS1339U-33
Download Datasheet for DS1339U-33
Analog Devices / Maxim Integrated
103,639
Across 5 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 15,000 - -
Romaks Technologies 72,320 - -
PROSOFT ELECTRONICS 6,000 - -
Xingangxin 1,319 - -
Smaxon Electronics 9,000 - -
Price on request
103,639
Distributor Stock MOQ Country
Components Technology Group, Inc. 15,000 - -
Romaks Technologies 72,320 - -
PROSOFT ELECTRONICS 6,000 - -
Xingangxin 1,319 - -
Smaxon Electronics 9,000 - -
- - - - 200µA @ 5.5V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output, Trickle-Charger - - - - - I²C, 2-Wire Serial - 3.0 mm - - - - Surface Mount - - -40°C ~ 85°C - - - - 8-uMAX/uSOP - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.3V to 3.7V - - -
DS1337S
DS1337S
Download Datasheet for DS1337S
Analog Devices / Maxim Integrated
96,534
Across 4 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 10,000 - -
Romaks Technologies 82,182 - -
Hybrid Electronics 3 - -
Xingangxin 4,349 - -
Price on request
96,534
Distributor Stock MOQ Country
Components Technology Group, Inc. 10,000 - -
Romaks Technologies 82,182 - -
Hybrid Electronics 3 - -
Xingangxin 4,349 - -
- - - - 0.6µA YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output - - - - - I2C Serial Interface - - - - - - Surface Mount - - -40°C - - - - 8-SOIC 8-SOIC - - - - - 12/24 hr Clock/Calendar 1.8V - - -
DS1337U
DS1337U
Download Datasheet for DS1337U
Analog Devices / Maxim Integrated
93,400
Across 2 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,000 - -
Romaks Technologies 90,400 - -
Price on request
93,400
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,000 - -
Romaks Technologies 90,400 - -
- - - - 0.6µA @ 1.3V ~ 1.8V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output - - - - - I²C, 2-Wire Serial - - - - - - Surface Mount - - -40°C - - - - 8-uMAX/uSOP - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.8V - - -
DS1302ZN
DS1302ZN
Download Datasheet for DS1302ZN
Analog Devices / Maxim Integrated
91,979
Across 5 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,500 - -
Fe Components 2,416 - -
Braun Electronic Components 71 - -
Romaks Technologies 82,182 - -
Smaxon Electronics 4,810 - -
Price on request
91,979
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,500 - -
Fe Components 2,416 - -
Braun Electronic Components 71 - -
Romaks Technologies 82,182 - -
Smaxon Electronics 4,810 - -
- - - - 0.3µA ~ 1µA @ 2V ~ 5V YY-MM-DD-dd - Leap Year, NVSRAM, Trickle-Charger - - - - - 3-Wire Serial - - - - 31B - Surface Mount - - -40°C ~ 85°C - - - - 8-SOIC - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2V ~ 5.5V - - -
DS1338Z-3
DS1338Z-3
Download Datasheet for DS1338Z-3
Analog Devices / Maxim Integrated
90,400
From Romaks Technologies
Distributor Stock MOQ Country
Romaks Technologies 90,400 - -
Price on request
90,400
Distributor Stock MOQ Country
Romaks Technologies 90,400 - -
- - - - 200µA @ 3.3V YY-MM-DD-dd - Leap Year, NVSRAM, Square Wave Output - - - - - I²C, 2-Wire Serial - - - - 56B - Surface Mount - - -40°C ~ 85°C - - - - 8-SOIC - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.3V ~ 3.7V - - -
DS1337U/TR
DS1337U/TR
Download Datasheet for DS1337U/TR
Analog Devices / Maxim Integrated
85,662
Across 2 distributors
Distributor Stock MOQ Country
Romaks Technologies 82,182 - -
Xingangxin 3,480 - -
Price on request
85,662
Distributor Stock MOQ Country
Romaks Technologies 82,182 - -
Xingangxin 3,480 - -
- - - - 0.6µA @ 1.3V ~ 1.8V YY-MM-DD - Alarm, Leap Year, Square Wave Output - - - - - I²C - - - - - - Surface Mount - - -40°C ~ 85°C (TA) - - - - 8-µMAX - - - No - - HH:MM:SS (12/24 hr) Clock/Calendar 1.8V ~ 5.5V - - -
BQ32002DR
BQ32002DR
Texas Instruments
79,452
Across 4 distributors
Distributor Stock MOQ Country
Romaks Technologies 45,200 - -
Optech Co.,Limited 1,442 - -
Xingangxin 2,810 - -
Smaxon Electronics 30,000 - -
Price on request
79,452
Distributor Stock MOQ Country
Romaks Technologies 45,200 - -
Optech Co.,Limited 1,442 - -
Xingangxin 2,810 - -
Smaxon Electronics 30,000 - -
- - - - 65µA YY-MM-DD-dd - Leap Year, Square Wave Output, Trickle-Charger; 63-ppm to ppm adjustment, I2C bus interface, Oscillator fail detection - - - - - I²C, 2-Wire Serial - - - - - - Surface Mount - - -40°C ~ 85°C - - - - 8-SOIC - - - - - - HH:MM:SS (24 hr) Clock/Calendar 1.4V ~ 3.6V - - -
DS1302S+T&R
DS1302S+T&R
Download Datasheet for DS1302S+T&R
Analog Devices / Maxim Integrated
79,000
Across 2 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 75,000 - -
Xingangxin 4,000 - -
Price on request
79,000
Distributor Stock MOQ Country
Components Technology Group, Inc. 75,000 - -
Xingangxin 4,000 - -
- - - - 0.3µA to 1µA @ 2V to 5V YY-MM-DD-dd - Leap Year, NVSRAM, Trickle-Charger - - - - - 3-Wire Serial - - - - 31B - Surface Mount - - 0°C to 70°C - - - - 8-SOIC - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2V to 5.5V - - -
BQ32000D
BQ32000D
Texas Instruments
76,758
Across 3 distributors
Distributor Stock MOQ Country
Romaks Technologies 72,320 - -
Optech Co.,Limited 2,690 - -
PROSOFT ELECTRONICS 1,748 - -
Price on request
76,758
Distributor Stock MOQ Country
Romaks Technologies 72,320 - -
Optech Co.,Limited 2,690 - -
PROSOFT ELECTRONICS 1,748 - -
- - - - 0.1mA YY-MM-DD-dd - Leap Year, Square Wave Output, Trickle-Charger - - - - - I2C, 2-Wire Serial - - - - - - Surface Mount - - -40°C - - - - 8-SOIC - - - - - - HH:MM:SS (24 hr) Real-time clock 1.4V - - -
DS1340U-33
DS1340U-33
Download Datasheet for DS1340U-33
Analog Devices / Maxim Integrated
73,325
Across 2 distributors
Distributor Stock MOQ Country
Romaks Technologies 72,320 - -
Smaxon Electronics 1,005 - -
Price on request
73,325
Distributor Stock MOQ Country
Romaks Technologies 72,320 - -
Smaxon Electronics 1,005 - -
- - - - 0.15mA @ 5.5V YY-MM-DD-dd - Leap Year, Trickle-Charger - - - - - I2C, 2-Wire Serial - - - - - - Surface Mount - - -40°C to 85°C - - - - 8-uMAX/uSOP - - - - - - HH:MM:SS (24 hr) Clock/Calendar 1.3V to 5.5V - - -
DS1302S
DS1302S
Download Datasheet for DS1302S
Analog Devices / Maxim Integrated
72,921
Across 3 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,000 - -
Romaks Technologies 69,538 - -
Xingangxin 1,383 - -
Price on request
72,921
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,000 - -
Romaks Technologies 69,538 - -
Xingangxin 1,383 - -
- - - - 0.3µA ~ 1µA @ 2V ~ 5V YY-MM-DD-dd - Leap Year, NVSRAM, Trickle-Charger - - - - - 3-Wire Serial - - - - 31B - Surface Mount - - 0°C ~ 70°C - - - - 8-SOIC 8-SOIC (0.209", 5.30mm Width) - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2V ~ 5.5V - - -
DS1338U-33
DS1338U-33
Download Datasheet for DS1338U-33
Analog Devices / Maxim Integrated
70,267
Across 2 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 10,000 - -
Romaks Technologies 60,267 - -
Price on request
70,267
Distributor Stock MOQ Country
Components Technology Group, Inc. 10,000 - -
Romaks Technologies 60,267 - -
- - - - 125µA to 200µA @ 3.63V to 5.5V YY-MM-DD-dd - Leap Year, NVSRAM, Square Wave Output - - - - - I²C, 2-Wire Serial - - - - 56B - Surface Mount - - -40°C to 85°C - - - - 8-uMAX/uSOP - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.3V to 3.7V - - -
ISL1208IU8Z-TK
ISL1208IU8Z-TK
Renesas
67,902
Across 3 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 65,000 - -
PROSOFT ELECTRONICS 321 - -
Xingangxin 2,581 - -
Price on request
67,902
Distributor Stock MOQ Country
Components Technology Group, Inc. 65,000 - -
PROSOFT ELECTRONICS 321 - -
Xingangxin 2,581 - -
- - - - 4µA to 6µA YY-MM-DD-dd Isl1208 Alarm, Leap Year, SRAM; Backup Switching; Alarm, Calendar, Clock - - - - - I²C, 2-Wire Serial - - - - 2B Smd/Smt Surface Mount - - -40°C ~ 85°C - - - - 8-MSOP - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.8V ~ 5.5V - - -
DS1306EN
DS1306EN
Download Datasheet for DS1306EN
Analog Devices / Maxim Integrated
67,623
Across 3 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 5,750 - -
Romaks Technologies 60,267 - -
Xingangxin 1,606 - -
Price on request
67,623
Distributor Stock MOQ Country
Components Technology Group, Inc. 5,750 - -
Romaks Technologies 60,267 - -
Xingangxin 1,606 - -
- - - - 25.3µA ~ 81µA @ 2V ~ 5V YY-MM-DD-dd - Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger - - - - - SPI - 4.4 mm - - 96B - Surface Mount - - -40°C to +85°C 2.0V to 5.5V - - - 20-TSSOP - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2V ~ 5.5V - - -
DS1390U-33
DS1390U-33
Analog Devices / Maxim Integrated
62,913
Across 2 distributors
Distributor Stock MOQ Country
Romaks Technologies 56,500 - -
Xingangxin 6,413 - -
Price on request
62,913
Distributor Stock MOQ Country
Romaks Technologies 56,500 - -
Xingangxin 6,413 - -
- - - - 175µA @ 2.97V ~ 5.5V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output, Trickle-Charger - - - - - SPI, 4-Wire Serial - - - - - - Surface Mount - - -40°C to 85°C - - - - 10-uMAX 10-uMAX - - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 1.3V to 5.5V - - -
DS1305EN
DS1305EN
Download Datasheet for DS1305EN
Analog Devices / Maxim Integrated
61,546
Across 3 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,222 - -
Romaks Technologies 58,323 - -
Hybrid Electronics 1 - -
Price on request
61,546
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,222 - -
Romaks Technologies 58,323 - -
Hybrid Electronics 1 - -
- - - - 25.3µA YY-MM-DD-dd - Alarm, Leap Year, NVSRAM, Trickle-Charger - - - - - SPI - 4.4 mm - - 96B - Surface Mount - - -40°C - - - - 20-TSSOP - - - - - - 12/24 hr Clock/Calendar 2V - - -
DS1302S-16
DS1302S-16
Download Datasheet for DS1302S-16
Analog Devices / Maxim Integrated
60,267
From Romaks Technologies
Distributor Stock MOQ Country
Romaks Technologies 60,267 - -
Price on request
60,267
Distributor Stock MOQ Country
Romaks Technologies 60,267 - -
- - - - 0.3µA ~ 1µA @ 2V ~ 5V YY-MM-DD-dd - Leap Year, NVSRAM, Trickle-Charger - - - - - 3-Wire Serial - - - - 31B - Surface Mount - - 0°C ~ 70°C - - - - 16-SOIC 16-SOIC - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2V ~ 5.5V - - -
DS1305
DS1305
Download Datasheet for DS1305
Analog Devices / Maxim Integrated
55,200
Across 2 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 10,000 - -
Romaks Technologies 45,200 - -
Price on request
55,200
Distributor Stock MOQ Country
Components Technology Group, Inc. 10,000 - -
Romaks Technologies 45,200 - -
- - - - 25.3µA ~ 81µA @ 2V ~ 5V YY-MM-DD-dd - Alarm, Leap Year, NVSRAM, Trickle-Charger - - - - - SPI - - - - 96B - Through Hole - - 0°C ~ 70°C - 20-TSSOP (173 mils) - - 16-PDIP - - - No - - HH:MM:SS (12/24 hr) Clock/Calendar 2V ~ 5.5V - - -
DS1341U+
DS1341U+
Download Datasheet for DS1341U+
Analog Devices / Maxim Integrated
51,657
From Romaks Technologies
Distributor Stock MOQ Country
Romaks Technologies 51,657 - -
Price on request
51,657
Distributor Stock MOQ Country
Romaks Technologies 51,657 - -
- - - - 0.5µA / 0.6µA YY-MM-DD-dd - Alarm; Leap Year; Square Wave Output - - - - - I²C - 3.0 mm - - - - Surface Mount - - -40°C / 85°C - - - - 8-uMAX/uSOP - - - No - - HH:MM:SS (12/24 hr) Clock/Calendar 1.8V - - -
PCF8523T/1,118
PCF8523T/1,118
Download Datasheet for PCF8523T/1,118
NXP Semiconductors
50,000
From Fe Components
Distributor Stock MOQ Country
Fe Components 50,000 - -
Price on request
50,000
Distributor Stock MOQ Country
Fe Components 50,000 - -
- - - - 0.5µA @ 2V ~ 5V YY-MM-DD-dd - Alarm, Leap Year, Watchdog Timer - - - - - Fast-mode Plus (Fm+) - - - - - Smd/Smt Surface Mount - - -40°C ~ 85°C - - - - 8-SO - - - Reel - - HH:MM:SS (12/24 hr) Clock/Calendar 1.0 V to 5.5 V - - -
DS1302SN
DS1302SN
Download Datasheet for DS1302SN
Analog Devices / Maxim Integrated
48,738
Across 3 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 5,750 - -
Romaks Technologies 40,178 - -
Xingangxin 2,810 - -
Price on request
48,738
Distributor Stock MOQ Country
Components Technology Group, Inc. 5,750 - -
Romaks Technologies 40,178 - -
Xingangxin 2,810 - -
- - - - 0.3µA to 1µA @ 2V ~ 5V YY-MM-DD-dd - Leap Year, NVSRAM, Trickle-Charger - - - - - 3-Wire Serial - - - - 31B - Surface Mount - - -40°C to +85°C - - - - 8-SOIC 8-SOIC - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2V to 5.5V - - -
BQ4285S-SB2TR
BQ4285S-SB2TR
Download Datasheet for BQ4285S-SB2TR
Texas Instruments
46,031
Across 2 distributors
Distributor Stock MOQ Country
Romaks Technologies 45,200 - -
Optech Co.,Limited 831 - -
Price on request
46,031
Distributor Stock MOQ Country
Romaks Technologies 45,200 - -
Optech Co.,Limited 831 - -
- - - - - YY-MM-DD-dd - Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output - - - - - Parallel - 1.27 mm Gull Wing - 114B - Surface Mount - - 0°C - - - - 24-SOIC 24-SOIC - - Yes - - HH:MM:SS (12/24 hr) Clock/Calendar 2.5V - - -
DS3231SN#T&R
DS3231SN#T&R
Download Datasheet for DS3231SN#T&R
Analog Devices / Maxim Integrated
44,465
Across 4 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 40,000 - -
Fe Components 3,203 - -
MW.FEP S.p.A. 3 - -
Xingangxin 1,259 - -
Price on request
44,465
Distributor Stock MOQ Country
Components Technology Group, Inc. 40,000 - -
Fe Components 3,203 - -
MW.FEP S.p.A. 3 - -
Xingangxin 1,259 - -
- - - - 110µA to 170µA @ 3.63V to 5.5V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output, TCXO/Crystal - - - - - I²C, 2-Wire Serial - - - - - - Surface Mount - - -40°C to 85°C - - - - 16-SOIC - - - True - - HH:MM:SS (12/24 hr) Clock/Calendar 2.3V to 5.5V - - -
DS3231MZ+TRL
DS3231MZ+TRL
Download Datasheet for DS3231MZ+TRL
Analog Devices / Maxim Integrated
44,204
Across 5 distributors
Distributor Stock MOQ Country
Fe Components 5,000 - -
Romaks Technologies 32,873 - -
Optech Co.,Limited 3,093 - -
PROSOFT ELECTRONICS 3 - -
Xingangxin 3,235 - -
Price on request
44,204
Distributor Stock MOQ Country
Fe Components 5,000 - -
Romaks Technologies 32,873 - -
Optech Co.,Limited 3,093 - -
PROSOFT ELECTRONICS 3 - -
Xingangxin 3,235 - -
- - - - 130µA ~ 200µA @ 3.63V ~ 5.5V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output - - - - - I²C, 2-Wire Serial - - - - - - Surface Mount - - -45°C ~ 85°C - - - - 8-SOIC 8-SOIC - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.3V ~ 5.5V 2.3V ~ 5.5V - -
DS1342U+T&R
DS1342U+T&R
Download Datasheet for DS1342U+T&R
Analog Devices / Maxim Integrated
42,000
From Fe Components
Distributor Stock MOQ Country
Fe Components 42,000 - -
Price on request
42,000
Distributor Stock MOQ Country
Fe Components 42,000 - -
- - - - 0.6µA ~ 0.7µA @ 3V ~ 5V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output - - - No - I²C, 2-Wire Serial - 3.0 mm - - - - Surface Mount - - -40°C ~ 85°C - - - - 8-uMAX/uSOP - - - No - - HH:MM:SS (12/24 hr) Clock/Calendar 1.8V ~ 5.5V - - -
PCF85063ATT/AJ
PCF85063ATT/AJ
Download Datasheet for PCF85063ATT/AJ
NXP Semiconductors
38,438
Across 4 distributors
Distributor Stock MOQ Country
Optech Co.,Limited 8,815 - -
PROSOFT ELECTRONICS 2,616 - -
Xingangxin 1,842 - -
Smaxon Electronics 25,165 - -
Price on request
38,438
Distributor Stock MOQ Country
Optech Co.,Limited 8,815 - -
PROSOFT ELECTRONICS 2,616 - -
Xingangxin 1,842 - -
Smaxon Electronics 25,165 - -
- - - - 0.22 μA YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output - - - - - I²C, 2-Wire Serial - - - - - - Surface Mount - - -40 °C to 85 °C - - - - 8-TSSOP - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 0.9 V to 5.5 V - - -
BQ4285S-SB2
BQ4285S-SB2
Download Datasheet for BQ4285S-SB2
Texas Instruments
38,175
Across 2 distributors
Distributor Stock MOQ Country
Romaks Technologies 36,160 - -
Optech Co.,Limited 2,015 - -
Price on request
38,175
Distributor Stock MOQ Country
Romaks Technologies 36,160 - -
Optech Co.,Limited 2,015 - -
- - - - - YY-MM-DD-dd - Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output - - - - - Parallel - - - - 114B - Surface Mount - - 0°C ~ 70°C - - - - 24-SOIC - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.5V ~ 4V - - -
M41T56M6F
M41T56M6F
STMicroelectronics
37,548
Across 3 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 5,000 - -
Fe Components 32,500 - -
Innova Technologies 48 - -
Price on request
37,548
Distributor Stock MOQ Country
Components Technology Group, Inc. 5,000 - -
Fe Components 32,500 - -
Innova Technologies 48 - -
- - - - 100µA (Typ) @ 4.5V ~ 5.5V YY-MM-DD-dd - Leap Year, NVSRAM - - - - - I²C, 2-Wire Serial - - - - 56B - Surface Mount - - -40°C ~ 85°C - - - - 8-SOIC - - - - - - HH:MM:SS (24 hr) Clock/Calendar 2.5V ~ 3.5V - - -
BQ32002D
BQ32002D
Texas Instruments
36,610
Across 2 distributors
Distributor Stock MOQ Country
Romaks Technologies 36,160 - -
PROSOFT ELECTRONICS 450 - -
Price on request
36,610
Distributor Stock MOQ Country
Romaks Technologies 36,160 - -
PROSOFT ELECTRONICS 450 - -
- - - - 200µA @ 3.3V YY-MM-DD-dd - Leap Year, Square Wave Output, Trickle-Charger; 63-ppm to ppm adjustment, I2C bus interface, Oscillator fail detection - - - - - I2C, 2-Wire Serial - - - - - - Surface Mount - - -40°C ~ 85°C (TA) - - - - 8-SOIC - - - - - - HH:MM:SS (24 hr) Clock/Calendar 1.4V ~ 3.6V - - -
DS1371U
DS1371U
Analog Devices / Maxim Integrated
34,769
From Romaks Technologies
Distributor Stock MOQ Country
Romaks Technologies 34,769 - -
Price on request
34,769
Distributor Stock MOQ Country
Romaks Technologies 34,769 - -
- - - - 1.3µA @ 1.7V ~ 5.5V Binary - Alarm, Square Wave Output, Watchdog Timer - - - No - I²C, 2-Wire Serial - 3.0 mm - - - - Surface Mount - - -40°C to 85°C - - - - 8-uMAX/uSOP - - - - - - Binary Binary Counter 1.7V to 5.5V - - -
DS1305E
DS1305E
Download Datasheet for DS1305E
Analog Devices / Maxim Integrated
32,723
Across 3 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 4,700 - -
Romaks Technologies 25,829 - -
Smaxon Electronics 2,194 - -
Price on request
32,723
Distributor Stock MOQ Country
Components Technology Group, Inc. 4,700 - -
Romaks Technologies 25,829 - -
Smaxon Electronics 2,194 - -
- - - - 25.3µA ~ 81µA @ 2V ~ 5V YY-MM-DD-dd - Alarm, Leap Year, NVSRAM, Trickle-Charger - - - - - SPI - 4.4 mm - - 96B - Surface Mount - - -40°C ~ +85°C - - - - 20-TSSOP 20-TSSOP - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2V ~ 5.5V - - -
DS3231S
DS3231S
Download Datasheet for DS3231S
Analog Devices / Maxim Integrated
31,658
Across 4 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 6,565 - -
Romaks Technologies 20,089 - -
Xingangxin 4,000 - -
Smaxon Electronics 1,004 - -
Price on request
31,658
Distributor Stock MOQ Country
Components Technology Group, Inc. 6,565 - -
Romaks Technologies 20,089 - -
Xingangxin 4,000 - -
Smaxon Electronics 1,004 - -
- - - - 110µA ~ 170µA @ 3.63V ~ 5.5V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output, TCXO/Crystal - - - - - I²C, 2-Wire Serial - - - - - - Surface Mount - - 0°C ~ 70°C - - - - 16-SOIC 16-SOIC (0.295", 7.50mm Width) - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.3V ~ 5.5V - - -
MCP79402-I/ST
MCP79402-I/ST
Download Datasheet for MCP79402-I/ST
Microchip Technology
30,673
Across 2 distributors
Distributor Stock MOQ Country
Braun Electronic Components 101 - -
Smaxon Electronics 30,572 - -
Price on request
30,673
Distributor Stock MOQ Country
Braun Electronic Components 101 - -
Smaxon Electronics 30,572 - -
- - - - 1.2µA (Typ) @ 3.3V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output, SRAM, Unique ID - - - - - I²C, 2-Wire Serial - - Through Hole - 64B - Surface Mount - - -40°C ~ 85°C - - - - 8-TSSOP - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.3V ~ 5.5V - - -
MCP795W21-I/ST
MCP795W21-I/ST
Download Datasheet for MCP795W21-I/ST
Microchip Technology
30,653
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 30,653 - -
Price on request
30,653
Distributor Stock MOQ Country
Smaxon Electronics 30,653 - -
- - - - 1µA @ 1.8V ~ 5.5V YY-MM-DD-dd - Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer Alarm, Calendar, Clock - - - - SPI - - - - 64B Smd/Smt Surface Mount - - -40°C / 85°C - - Real Time Clock - 14-TSSOP - - 1.8 V - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 1.3 V / 3.6 V - - -
MCP795W20T-I/ST
MCP795W20T-I/ST
Download Datasheet for MCP795W20T-I/ST
Microchip Technology
30,651
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 30,651 - -
Price on request
30,651
Distributor Stock MOQ Country
Smaxon Electronics 30,651 - -
- - - - 1µA @ 1.8V ~ 5.5V YY-MM-DD-dd - Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer - - - - - SPI - - - - 64B - Surface Mount - - -40°C ~ 85°C - - - - 14-TSSOP 14-TSSOP - - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 1.3V ~ 3.6V - - -
MCP795W20T-I/SL
MCP795W20T-I/SL
Download Datasheet for MCP795W20T-I/SL
Microchip Technology
30,650
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 30,650 - -
Price on request
30,650
Distributor Stock MOQ Country
Smaxon Electronics 30,650 - -
- - - - 1µA @ 1.8V ~ 5.5V YY-MM-DD-dd - Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer - - - - - SPI - - - - 64B - Surface Mount - - -40°C ~ 85°C - - - - 14-SOIC - - - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 1.3V ~ 3.6V - - -
MCP795W12-I/SL
MCP795W12-I/SL
Download Datasheet for MCP795W12-I/SL
Microchip Technology
30,644
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 30,644 - -
Price on request
30,644
Distributor Stock MOQ Country
Smaxon Electronics 30,644 - -
- - - - 1µA @ 1.8V ~ 5.5V YY-MM-DD-dd - Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer - - - - - SPI - - - - 64B - Surface Mount - - -40°C ~ 85°C - - - - 14-SOIC - - - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 1.3V ~ 3.6V 1.8V ~ 3.6V - -
MCP795W11T-I/SL
MCP795W11T-I/SL
Download Datasheet for MCP795W11T-I/SL
Microchip Technology
30,642
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 30,642 - -
Price on request
30,642
Distributor Stock MOQ Country
Smaxon Electronics 30,642 - -
- - - - 1µA @ 1.8V ~ 5.5V YY-MM-DD-dd - Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer - - - - - SPI - 0.154 mm - - 64B - Surface Mount - - -40°C ~ 85°C - - - - 14-SOIC - - - Tape & Reel (TR) - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 1.8V ~ 3.6V - - -
MCP795W10T-I/ST
MCP795W10T-I/ST
Download Datasheet for MCP795W10T-I/ST
Microchip Technology
30,639
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 30,639 - -
Price on request
30,639
Distributor Stock MOQ Country
Smaxon Electronics 30,639 - -
- - - - 1µA @ 1.8V ~ 5.5V YY-MM-DD-dd - Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer - - - - - SPI - 4.4 mm - - 64B - Surface Mount - - -40°C ~ 85°C - - - - 14-TSSOP 14-TSSOP - - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 1.3V ~ 3.6V - - -
MCP795W10-I/ST
MCP795W10-I/ST
Download Datasheet for MCP795W10-I/ST
Microchip Technology
30,637
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 30,637 - -
Price on request
30,637
Distributor Stock MOQ Country
Smaxon Electronics 30,637 - -
- - - - 1µA @ 1.8V YY-MM-DD-dd - Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer - - - - - SPI - - - - 64B - Surface Mount - - -40°C to 85°C - - - - 14-TSSOP 14-TSSOP - - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 1.3V to 3.6V - - -
MCP79522T-I/MN
MCP79522T-I/MN
Microchip Technology
30,634
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 30,634 - -
Price on request
30,634
Distributor Stock MOQ Country
Smaxon Electronics 30,634 - -
- - - - 1µA @ 1.8V ~ 3.6V YY-MM-DD-dd - Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID - - - - - SPI - 3 mm - - 64B - Surface Mount - - -40°C to 85°C - - - - 10-TDFN (3x3) TDFN EP - - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 1.3V ~ 3.6V 1.8V to 3.6V - -
MCP79521-I/MS
MCP79521-I/MS
Microchip Technology
30,630
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 30,630 - -
Price on request
30,630
Distributor Stock MOQ Country
Smaxon Electronics 30,630 - -
- - - - 1µA @ 1.8V ~ 3.6V YY-MM-DD-dd - Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID - - - - - SPI - - - - 64B - Surface Mount - - -40°C - - - - 10-MSOP 10-MSOP - - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 1.3V ~ 3.6V 1.8V - -
Showing 1-50 of 2,387 products

About Real Time Clocks

Real Time Clocks (RTCs) are essential components in a variety of electronic systems, providing accurate timekeeping and calendar functions. These integrated circuits are crucial for applications that require precise timing, such as data logging, embedded systems, and consumer electronics.

When selecting a Real Time Clock, it is important to consider key attributes such as current consumption, date format, and interface options. These specifications can significantly impact the performance and compatibility of the RTC within your design. Additionally, understanding the operating temperature range and memory size is vital for ensuring the component meets your application's requirements.

Real Time Clocks are commonly used in new product design and prototyping, production electronics assembly, and maintenance applications. Their versatility makes them suitable for a wide range of uses, from simple timers to complex time event recorders.

Before submitting a Request for Quotation (RFQ), buyers should compare critical specifications and validate the lifecycle status of the RTCs they are considering. It is also advisable to prioritize parametric filtering based on the specific needs of your project, rather than brand preference, to minimize sourcing risks.

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