DistyParts Icon
  Live marketplace • Category view

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
32 distributors
Browse all parts ➜

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 AEC Qualified Accuracy Automotive Grade Clock Frequency Current Date Format Features Function Halogen Free Industrial Grade Input Voltage Interface Lead Spacing Lead Style Medical Grade Memory Size Military Grade Mounting Style Mounting Type Operating Temperature Operating Voltage Package / Case Resolution SVHC Present Storage Temperature Supplier Device Package Supplier Package Supply Voltage Tape & Reel Termination Style Time Format Type Voltage Voltage Supply Watchdog Timer
Product image for DS1689S by Analog Devices / Maxim Integrated
DS1689S
Download Datasheet for DS1689S
Analog Devices / Maxim Integrated
3,500
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,500 - -
Price on request
 - - - - 2mA YY-MM-DD-dd NVSRAM - - - - Parallel 0.8 mm - - 114B - - Surface Mount -40°C to 85°C 3V to 5V - - - - 28-SOIC 28-SOIC - Tape & Reel - HH:MM:SS (12/24 hr) Clock/Calendar 2.5V ~ 3.7V - -
Product image for CDP68HC68T1M2 by Renesas
CDP68HC68T1M2
Renesas
3,500
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,500 - -
Price on request
 - - - - 20µA ~ 500µA @ 5V YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, Watchdog Timer - - - - SPI - - - 32B - - Surface Mount -40°C ~ 85°C 2.2V ~ 6V - - - - 16-SOIC - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.2V ~ 6V - -
Product image for X1286V14I by Renesas
X1286V14I
Renesas
3,500
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,500 - -
$5.21
 - - - - 10µA YY-MM-DD-dd Alarm, Leap Year, Supervisor, Watchdog Timer - - - - I²C, 2-Wire Serial 0.173 mm - - - - - Surface Mount -40°C - - - - - 14-TSSOP 14-TSSOP (0.173", 4.40mm Width) - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 1.8V - -
Product image for MCP7940M-I/SN by Microchip Technology
MCP7940M-I/SN
Download Datasheet for MCP7940M-I/SN
Microchip Technology
3,492
Across 3 distributors
Distributor Stock MOQ Country
Fe Components 11 - -
Xingangxin 2,764 - -
Smaxon Electronics 717 - -
$5.21
 - - - - 1µA @ 5.5V YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, SRAM - - - - I²C, 2-Wire Serial 3.9 mm - - 64B - - Surface Mount -40°C ~ 85°C - - - - - 8-SOIC 8-SOIC - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.8V ~ 5.5V - -
Product image for DS1390U-33+T&R by Analog Devices / Maxim Integrated
DS1390U-33+T&R
Download Datasheet for DS1390U-33+T&R
Analog Devices / Maxim Integrated
3,414
Across 3 distributors
Distributor Stock MOQ Country
Braun Electronic Components 17 - -
Seba Components 250 - -
Xingangxin 3,147 - -
Price on request
 - - - - 175µA @ 2.97V ~ 5.5V YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, Trickle-Charger - - - - SPI 3.0 mm - - - - - Surface Mount -40°C ~ 85°C - - - - - 10-uMAX/uSOP - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 1.3V ~ 5.5V - -
Product image for CDP68HC68T1EZ by Renesas
CDP68HC68T1EZ
Renesas
3,362
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,362 - -
Price on request
 - - - - 20µA YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, Watchdog Timer - - - - SPI - - - 32B - - Through Hole -40°C - 16-PDIP - - - 16-PDIP - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.2V - -
Product image for X1227S8IZ by Renesas
X1227S8IZ
Renesas
3,362
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,362 - -
$5.21
 - - - - 10µA ~ 20µA @ 2.7V ~ 5V YY-MM-DD-dd Alarm, Leap Year, Unique ID - - - - I2C, 2-Wire Serial - - - - - - Surface Mount -40°C ~ 85°C - - - - - 8-SOIC - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.8V ~ 5.5V 2.7V ~ 5.5V -
Product image for M48T201V-85MH1F by STMicroelectronics
M48T201V-85MH1F
STMicroelectronics
3,298
Across 2 distributors
Distributor Stock MOQ Country
Fe Components 2,808 - -
Smaxon Electronics 490 - -
$5.21
 - - - - 2mA @ 3V ~ 3.6V YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K - - - - Parallel - - - - - SMD/SMT Surface Mount 0°C ~ 70°C - - - - - 44-SOH - - - - HH:MM:SS (24 hr) Clock/Calendar 3V - -
Product image for MCP7940NT-I/MS by Microchip Technology
MCP7940NT-I/MS
Download Datasheet for MCP7940NT-I/MS
Microchip Technology
3,255
Across 2 distributors
Distributor Stock MOQ Country
Speed Components Ltd 250 - -
Optech Co.,Limited 3,005 - -
$5.21
 - - - - 1.2µA @ 3.3V YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, SRAM - - - - I²C, 2-Wire Serial - - - 64B - - Surface Mount -40°C ~ 85°C - - - - - 8-MSOP - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.3V ~ 5.5V - -
Product image for DS1746WP-120 by Analog Devices / Maxim Integrated
DS1746WP-120
Download Datasheet for DS1746WP-120
Analog Devices / Maxim Integrated
3,200
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,200 - -
Price on request
 - - - - 2mA @ 3.3V YY-MM-DD-dd Leap Year, NVSRAM, Y2K; Integrated NV SRAM, Real-Time Clock, Crystal, Power-Fail Control Circuit, and Lithium Energy Source; Y2K Compliant; Nonvolatile with Over 10 Years of Operation in the Absence of Power; BCD-Coded Century, Year, Month, Date, Day, Hours, Minutes, and Seconds with Automatic Leap Year Compensation Valid Up to the Year 2100; Battery Voltage-Level Indicator Flag; Power-Fail Write Protection; Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time; Standard JEDEC Byte-Wide 128k x 8 Static RAM Pinout; PowerCap Module Board Only Surface Mountable Package for Direct Connection to PowerCap Containing Battery and Crystal; Replaceable Battery (PowerCap); Power-On Reset Output; Pin-for-Pin Compatible with Other Densities of DS174xP Timekeeping RAM; Underwriters Laboratories (UL) Recognized - - - - Parallel - - - 128kb - - Surface Mount 0°C ~ 70°C - - - - - 34-PowerCap Module - - - - HH:MM:SS (24 hr) Clock/Calendar 3V - -
Product image for BQ3285LFSS-A1TRG4 by Texas Instruments
BQ3285LFSS-A1TRG4
Download Datasheet for BQ3285LFSS-A1TRG4
Texas Instruments
3,100
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 3,100 - -
Price on request
 - - - - 100 µA YY-MM-DD-dd Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output - - - - Parallel - - - 242 B - - Surface Mount 0°C ~ 70°C - - - - - 24-SSOP - 2.7V ~ 3.6V - - HH:MM:SS (12/24 hr) Clock/Calendar 2.4V ~ 4V - -
Product image for AB0815-T3 by Abracon LLC
AB0815-T3
Abracon LLC
3,014
Across 2 distributors
Distributor Stock MOQ Country
Braun Electronic Components 14 - -
AA2DE 3,000 - -
Price on request
 - - - - 0.17µA ~ 0.22µA @ 1.8V ~ 3V YY-MM-DD-dd Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer - - - - SPI - - - 256B - - Surface Mount -40°C ~ 85°C - - - - - 16-QFN (3x3) - - - - HH:MM:SS:hh Clock/Calendar 1.5V ~ 3.6V - -
Product image for M48T35Y-70PC1 by STMicroelectronics
M48T35Y-70PC1
STMicroelectronics
2,996
Across 3 distributors
Distributor Stock MOQ Country
Fe Components 1,744 - -
Xingangxin 1,012 - -
Smaxon Electronics 240 - -
$5.21
 - - - - 2mA @ 4.75V ~ 5.5V YY-MM-DD-dd Leap Year - - - - Parallel - - - - - - Through Hole 0°C ~ 70°C - - - - - 28-PCDIP | CAPHAT® - - No - HH:MM:SS (24 hr) Clock/Calendar 4.5V ~ 5.5V 4.5V ~ 5.5V -
Product image for DS1337U+T&R by Analog Devices / Maxim Integrated
DS1337U+T&R
Download Datasheet for DS1337U+T&R
Analog Devices / Maxim Integrated
2,960
From Fe Components
Distributor Stock MOQ Country
Fe Components 2,960 - -
Price on request
 - - - - 0.6µA YY-MM-DD-dd Alarm, Leap Year, Square Wave Output - - - - I²C, 2-Wire Serial - - - - - - Surface Mount -40°C ~ 85°C - - - - - 8-uMAX/uSOP - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.8V - -
Product image for RTC-72423A by Epson
RTC-72423A
Download Datasheet for RTC-72423A
Epson
2,927
Across 4 distributors
Distributor Stock MOQ Country
HMB Electronics LLC 5 - -
Flip Electronics 6 - -
Xingangxin 2,774 - -
Smaxon Electronics 142 - -
$5.21
 - - - - 5µA ~ 10µA @ 2V ~ 5V YY-MM-DD-dd Leap Year - - - -0.3 V to 7.0 V Parallel 7.9 mm Through Hole - - - - Surface Mount -40°C to 85°C - - - - -55°C to 125°C 24-SOP 24-SOP - - - HH:MM:SS (12/24 hr) Clock/Calendar 4.5 V to 5.5 V - -
Product image for DS1308U-18+T by Analog Devices / Maxim Integrated
DS1308U-18+T
Download Datasheet for DS1308U-18+T
Analog Devices / Maxim Integrated
2,853
From Braun Electronic Components
Distributor Stock MOQ Country
Braun Electronic Components 2,853 - -
Price on request
 - - - - 100µA YY-MM-DD-dd Leap Year, NVSRAM, Square Wave Output - - - - I²C, 2-Wire Serial - - - 56B - - Surface Mount -40°C / 85°C - - - - - 8-uMAX/uSOP 8-uMAX/uSOP - No - HH:MM:SS (12/24 hr) Clock/Calendar 1.3V / 5.5V - -
Product image for M48T08-100PC1 by STMicroelectronics
M48T08-100PC1
STMicroelectronics
2,789
From Fe Components
Distributor Stock MOQ Country
Fe Components 2,789 - -
$5.21
 No - No - 3mA @ 4.7V ~ 5.5V YY-MM-DD-dd Leap Year, Watchdog Timer - - No - Parallel 15.24 mm - No - No - Through Hole 0°C ~ 70°C - - - - - 28-PCDIP, CAPHAT® 28-PCDIP, CAPHAT® - No - HH:MM:SS (24 hr) Clock/Calendar 4.75V ~ 5.5V - -
Product image for M41T80M6E by STMicroelectronics
M41T80M6E
STMicroelectronics
2,728
Across 2 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,568 - -
Smaxon Electronics 160 - -
$3.00
 - - - - 2.4µA ~ 31µA @ 2V ~ 5.5V YY-MM-DD-dd Alarm, Leap Year, Square Wave Output - - - - I²C, 2-Wire Serial - - - - - - Surface Mount -40°C ~ 85°C - - - - - 8-SOIC - - - - HH:MM:SS:hh (24 hr) Clock/Calendar 2V ~ 5.5V - -
Product image for AB1805-T3 by Abracon LLC
AB1805-T3
Download Datasheet for AB1805-T3
Abracon LLC
2,723
From HYPER IC FLORIDA INC.
Distributor Stock MOQ Country
HYPER IC FLORIDA INC. 2,723 - -
Price on request
 - - - - 0.17 µA ~ 0.22 µA YY-MM-DD-dd Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer Clock, Calendar, Alarm - Yes - I2C, 2-Wire Serial - - - 256 B - - Surface Mount -40°C ~ 85°C - - - - - 16-QFN (3x3) - - - - HH:MM:SS:hh Clock/Calendar 1.5 V ~ 3.6 V - -
Product image for DS1501WZ+T&R by Analog Devices / Maxim Integrated
DS1501WZ+T&R
Download Datasheet for DS1501WZ+T&R
Analog Devices / Maxim Integrated
2,600
From PROSOFT ELECTRONICS
Distributor Stock MOQ Country
PROSOFT ELECTRONICS 2,600 - -
Price on request
 - - - - 4mA @ 3V ~ 3.6V YY-MM-DD-dd Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K - - - - Parallel 7.5 mm - - 256B - - Surface Mount 0°C ~ 70°C - - - - - 28-SOIC - - No - HH:MM:SS (24 hr) Clock/Calendar 2.5V ~ 3.7V - Yes
Product image for M41T83ZMY6F by STMicroelectronics
M41T83ZMY6F
STMicroelectronics
2,577
Across 2 distributors
Distributor Stock MOQ Country
Fe Components 1,000 - -
Xingangxin 1,577 - -
$5.21
 - - - - 10µA @ 5.5V YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer - - - - I²C, 2-Wire Serial 7.5 mm - - 7B - - Surface Mount -40°C ~ 85°C - - - - - 18-SOX - - - - HH:MM:SS:hh (24 hr) Clock/Calendar 2V ~ 5.5V - -
Product image for MCP79400T-I/MNY by Microchip Technology
MCP79400T-I/MNY
Download Datasheet for MCP79400T-I/MNY
Microchip Technology
2,570
Across 2 distributors
Distributor Stock MOQ Country
Braun Electronic Components 1,000 - -
Xingangxin 1,570 - -
$5.21
 - - - - 1.2µA (Typ) YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, SRAM, Unique ID - - - - I²C, 2-Wire Serial - - - 64B - - Surface Mount -40°C to 85°C - - - - - 8-TDFN (2x3) 8-TDFN (2x3) - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.3V to 5.5V - -
Product image for DS1286 by Analog Devices / Maxim Integrated
DS1286
Analog Devices / Maxim Integrated
2,568
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,568 - -
Price on request
 - - - - 7mA @ 5V YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer - - - - Parallel - - - 50B - - Through Hole 0°C ~ 70°C - - - - - 28-EDIP - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 2.4V ~ 3.5V 4.5V -
Product image for DS17887-5 by Analog Devices / Maxim Integrated
DS17887-5
Download Datasheet for DS17887-5
Analog Devices / Maxim Integrated
2,530
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,530 - -
Price on request
 No - No - 3mA @ 4.5V ~ 5.5V YY-MM-DD-dd Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output - - No - Parallel 15.24 mm - No 8KB No - Through Hole 0°C to 70°C - - - - - 24-EDIP 24-EDIP - No - HH:MM:SS (12/24 hr) Clock/Calendar 2.5V to 3.7V - -
Product image for ICM7170IBG by Rochester Electronics
ICM7170IBG
Rochester Electronics
2,524
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,524 - -
Price on request
 - - - - 20µA @ 5V YY-MM-DD-dd Alarm - - - - - - - - - - - Surface Mount -40°C ~ 85°C (TA) 2.8V ~ 3.5V - - - - - - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 2.8V ~ 3.5V - -
Product image for DS12885S by Analog Devices / Maxim Integrated
DS12885S
Analog Devices / Maxim Integrated
2,524
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,524 - -
Price on request
 - - - - 15mA @ 4.5V ~ 5.5V 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 - -
Product image for DS1284Q by Analog Devices / Maxim Integrated
DS1284Q
Download Datasheet for DS1284Q
Analog Devices / Maxim Integrated
2,502
Across 2 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,500 - -
Braun Electronic Components 2 - -
Price on request
 - ±1 Minute/Month at +25°C - - 7mA @ 5V YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer - - - - Parallel 11.51 mm - - 50B - - Surface Mount 0°C ~ 70°C - - - - - 28-PLCC (11.51x11.51) - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 2.4V ~ 3.5V 5V -
Product image for PCF2123TS/1,118 by NXP Semiconductors
PCF2123TS/1,118
Download Datasheet for PCF2123TS/1,118
NXP Semiconductors
2,500
Across 2 distributors
Distributor Stock MOQ Country
Fe Components 2,500 - -
HK XINYUANXIN ELECTRONIC TECH LIMITED Stock on Request - -
$5.21
 - - - - 0.33µA ~ 0.38µA @ 2V ~ 5V YY-MM-DD-dd Watchdog functionality, Freely programmable timer and alarm with interrupt capability, Programmable offset register for frequency adjustment; Alarm, Leap Year, Square Wave Output, Watchdog Timer - - - - SPI 4.4 mm - - - - - Surface Mount -40°C to 85°C 1.1 V to 5.5 V - seconds to years - - 14-TSSOP - - Tape & Reel - HH:MM:SS (12/24 hr) Clock/Calendar 1.6V ~ 5.5V - -
Product image for DS1339U-3 by Analog Devices / Maxim Integrated
DS1339U-3
Analog Devices / Maxim Integrated
2,500
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,500 - -
Price on request
 - - - - 150µA @ 3.3V YY-MM-DD Alarm, Leap Year, Square Wave Output, Trickle-Charger - - - - I²C - Surface Mount - - - - Surface Mount -40°C ~ 85°C (TA) 1.3V - - - - 8-µMAX - - No - HH:MM:SS (12/24 hr) Clock/Calendar 1.3V ~ 3.7V - -
Product image for DS1284QN by Analog Devices / Maxim Integrated
DS1284QN
Analog Devices / Maxim Integrated
2,500
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,500 - -
Price on request
 - - - - 7mA @ 5V YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer - - - - Parallel 11.51 mm J-Lead - 50B - - Surface Mount -40°C ~ 85°C - - - - - 28-PLCC (11.51x11.51) - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 2.4V ~ 3.5V - -
Product image for NJU6355EM by Nisshinbo Micro Devices
NJU6355EM
Download Datasheet for NJU6355EM
Nisshinbo Micro Devices
2,500
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,500 - -
$5.21
 - - - - 3.0 µA (TYP) YY-MM-DD-dd Leap Year - - - - 4-Wire Serial - - - - - - Surface Mount -30°C ~ 80°C - - - - - 8-EMP - - - - HH:MM:SS (24 hr) Clock/Calendar 2.0 to 5.5 V - -
Product image for X1205S8I by Renesas
X1205S8I
Renesas
2,500
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,500 - -
$5.21
 - - - - 10µA ~ 20µA @ 2.7V ~ 5V YY-MM-DD-dd Alarm, Leap Year - - - - I2C, 2-Wire Serial - - - - - - Surface Mount -40°C ~ 85°C - - - - - 8-SOIC - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.8V ~ 5.5V - -
Product image for DP8570AV/NOPB by Texas Instruments
DP8570AV/NOPB
Texas Instruments
2,474
From Unit Electronics Co.,Limited
Distributor Stock MOQ Country
Unit Electronics Co.,Limited 2,474 - -
Price on request
 - - - - 1µA @ 5V YY-MM-DD-dd Alarm, Leap Year - - - - Parallel - - - 44B - - Surface Mount -40°C ~ 85°C - - - - - 28-PLCC (11.51x11.51) - - - - HH:MM:SS:hh (12/24 hr) Timer Clock Peripheral (TCP) 2.2V ~ 5.1V - -
Product image for BQ4847MT by Texas Instruments
BQ4847MT
Download Datasheet for BQ4847MT
Texas Instruments
2,420
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 2,420 - -
Price on request
 No - No - - YY-MM-DD-dd Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - - No - Parallel - Through Hole No - No - Through Hole 0°C ~ 70°C - - - Not Present - 28-DIP Module - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.3V ~ 4V - -
Product image for DS1306 by Analog Devices / Maxim Integrated
DS1306
Download Datasheet for DS1306
Analog Devices / Maxim Integrated
2,356
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,356 - -
Price on request
 No - No - 25.3µA ~ 81µA @ 2V ~ 5V YY-MM-DD-dd Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger - - No - SPI 7.62 mm - No 96B No - Through Hole -40°C to +85°C 2.0V to 5.5V - - - - 16-PDIP - - No - HH:MM:SS (12/24 hr) Clock/Calendar 2V ~ 5.5V - -
Product image for ISL1208IB8 by Intersil
ISL1208IB8
Intersil
2,336
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,336 - -
Price on request
 - - - - 4µA to 6µA @ 3V to 5V YY-MM-DD-dd Alarm, Leap Year, SRAM - - - - I²C, 2-Wire Serial 3.9 mm - - 2B - - Surface Mount -40°C to 85°C - - - - - 8-SOIC 8-SOIC - No - HH:MM:SS (12/24 hr) Clock/Calendar 1.8V to 5.5V - -
Product image for BQ3285ESS by BenchPro
BQ3285ESS
Download Datasheet for BQ3285ESS
BenchPro
2,336
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,336 - -
Price on request
 - - - - 300µA @ 5V YY-MM-DD-dd Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output - - - - Parallel - - - 242B - - Surface Mount 0°C ~ 70°C - - - - - 24-SSOP - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.5V ~ 4V - -
Product image for M48T86MH1E by STMicroelectronics
M48T86MH1E
STMicroelectronics
2,333
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,333 - -
$3.00
 - - - - 15mA @ 4.5V ~ 5.5V YY-MM-DD-dd Alarm, Leap Year, NVSRAM, Square Wave Output - - - - Parallel - - - 114B - - Surface Mount 0°C ~ 70°C - 28-SOH - - - 28-SOH - - No - HH:MM:SS (12/24 hr) Clock/Calendar 4.5V ~ 5.5V - -
Product image for MCP7940NT-E/SN by Microchip Technology
MCP7940NT-E/SN
Download Datasheet for MCP7940NT-E/SN
Microchip Technology
2,284
From Xingangxin
Distributor Stock MOQ Country
Xingangxin 2,284 - -
$5.21
 - - - - 1.2µA @ 3.3V YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, SRAM - - - - I²C, 2-Wire Serial 0.154 mm - - 64B - - Surface Mount -40°C ~ 125°C - - - - - 8-SOIC - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.3V ~ 5.5V - -
Product image for PCF85263AT/AJ by NXP Semiconductors
PCF85263AT/AJ
Download Datasheet for PCF85263AT/AJ
NXP Semiconductors
2,264
From Xingangxin
Distributor Stock MOQ Country
Xingangxin 2,264 - -
$5.21
 - - - - 0.28 μA at VDD = 3.0 V and Tamb = 25 °C YY-MM-DD-dd Alarm, Leap Year, Watchdog Timer - - - - 400 kHz two-line I2C-bus interface - - - - - - Surface Mount -40°C ~ 85°C 0.9 V to 5.5 V - - - - 8-SO - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 0.9V ~ 5.5V - WatchDog timer
Product image for DS1554-70+ by Analog Devices / Maxim Integrated
DS1554-70+
Download Datasheet for DS1554-70+
Analog Devices / Maxim Integrated
2,222
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,222 - -
Price on request
 No - No - 6mA @ 5V YY-MM-DD-dd Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K; Integrated NV SRAM, Real-Time Clock (RTC), Crystal, Power-Fail Control Circuit, and Lithium Energy Source; Clock Registers are Accessed Identically to the Static RAM; These Registers Reside in the 16 Top RAM Locations; Century Byte Register (i.e., Y2K Compliant); Totally Nonvolatile with Over 10 Years of Operation in the Absence of Power; Precision Power-On Reset; Programmable Watchdog Timer and RTC Alarm; BCD-Coded Year, Month, Date, Day, Hours, Minutes, and Seconds with Automatic Leap-Year Compensation Valid Up to the Year 2100; Battery Voltage-Level Indicator Flag; Power-Fail Write Protection Allows for ±10% VCC Power-Supply Tolerance; Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time; Also Available in Industrial Temperature Range: -40°C to +85°C - - No - Parallel 15.24 mm - No 32KB No - Through Hole 0°C ~ 70°C - - - - - 32-EDIP - - No - HH:MM:SS (24 hr) Clock/Calendar 4.5V ~ 5.5V - -
Product image for MCP79410T-I/SN by Microchip Technology
MCP79410T-I/SN
Download Datasheet for MCP79410T-I/SN
Microchip Technology
2,181
Across 3 distributors
Distributor Stock MOQ Country
Fe Components 650 - -
Xingangxin 1,312 - -
Smaxon Electronics 219 - -
$5.21
 - - - - 1.2µA @ 3.3V YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, SRAM, Unique ID - - - - I2C, 2-Wire Serial - - - 64B, 1Kb - - Surface Mount -40°C ~ 85°C - - - - - 8-SOIC - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.3V ~ 5.5V 1.8V -
Product image for MCP7940MT-I/MNY by Microchip Technology
MCP7940MT-I/MNY
Download Datasheet for MCP7940MT-I/MNY
Microchip Technology
2,166
Across 2 distributors
Distributor Stock MOQ Country
Tomark Electronics Ltd 1,202 - -
Xingangxin 964 - -
$5.21
 - - - - 1µA @ 5.5V YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, SRAM - - - - I²C, 2-Wire Serial - - - 64B - - Surface Mount -40°C ~ 85°C - - - - - 8-TDFN (2x3) - - No - HH:MM:SS (12/24 hr) Clock/Calendar 1.8V ~ 5.5V - -
Product image for DS1339U-33+T&R by Analog Devices / Maxim Integrated
DS1339U-33+T&R
Download Datasheet for DS1339U-33+T&R
Analog Devices / Maxim Integrated
2,159
Across 3 distributors
Distributor Stock MOQ Country
Kinova Stock on Request - -
Risen Electronics 356 - -
Xingangxin 1,803 - -
Price on request
 - - - - 200µA @ 5.5V YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, Trickle-Charger - - - - I2C Serial Interface 3.0 mm - - - - - Surface Mount -40°C ~ 85°C - - - - - 8-uMAX/uSOP - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.3V ~ 3.7V - -
Product image for MCP79411-I/MS by Microchip Technology
MCP79411-I/MS
Download Datasheet for MCP79411-I/MS
Microchip Technology
2,134
Across 2 distributors
Distributor Stock MOQ Country
Smaxon Electronics 1,729 - -
Trace Tec 405 - -
$5.21
 - - - - 1.2µA @ 3.3V YY-MM-DD-dd Alarm, Leap Year, Square Wave Output, SRAM, Unique ID - - - - I²C, 2-Wire Serial 3.0 mm - - 64B, 1Kb - - Surface Mount -40°C ~ 85°C - - - - - 8-MSOP - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.3V ~ 5.5V - -
Product image for DS1672-33+ by Analog Devices / Maxim Integrated
DS1672-33+
Download Datasheet for DS1672-33+
Analog Devices / Maxim Integrated
2,100
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 2,100 - -
Price on request
 - - - - 500µA @ 3.63V Binary Trickle-Charger; I2C Serial Interface; Automatic Power-Fail Detect and Switch Circuitry; Power-Fail Reset Output; Low-Voltage Oscillator Operation (1.3V min); Trickle-Charge Capability; Underwriters Laboratories (UL) Recognized - - - - I2C, 2-Wire Serial 7.62 mm - - - - - Through Hole -40°C ~ 85°C - - - - - 8-PDIP 8-PDIP - - - Binary 32-Bit Binary Counter 1.3V ~ 3.63V - -
Product image for DS1744W-120+ by Analog Devices / Maxim Integrated
DS1744W-120+
Download Datasheet for DS1744W-120+
Analog Devices / Maxim Integrated
2,075
Across 2 distributors
Distributor Stock MOQ Country
Speed Components Ltd 63 - -
Optech Co.,Limited 2,012 - -
Price on request
 - - - 0.032MHz 2mA @ 3.3V YY-MM-DD-dd Leap Year, NVSRAM, Y2K - - - - Parallel 15.24 mm - - 32KB - - Through Hole -40°C ~ +85°C 5.0V - - - - 28-EDIP - - No Dual HH:MM:SS (24 hr) Clock/Calendar 2.97V ~ 3.63V - -
Product image for PCF8523TK/1,118 by NXP Semiconductors
PCF8523TK/1,118
Download Datasheet for PCF8523TK/1,118
NXP Semiconductors
2,058
Across 3 distributors
Distributor Stock MOQ Country
Speed Components Ltd 39 - -
PROSOFT ELECTRONICS 2,019 - -
HK XINYUANXIN ELECTRONIC TECH LIMITED Stock on Request - -
$5.21
 - - - - 0.5µA @ 2V ~ 5V YY-MM-DD-dd Alarm, Leap Year, Watchdog Timer - - - - I²C, 2-Wire Serial - Surface Mount - - - - Surface Mount -40°C ~ 85°C - - seconds to years - - 8-HVSON (4x4) - - Tape & Reel - HH:MM:SS (12/24 hr) Clock/Calendar 1.0 V to 5.5 V - -
Product image for M48T08Y-10MH1F by STMicroelectronics
M48T08Y-10MH1F
STMicroelectronics
2,055
From Romaks Technologies
Distributor Stock MOQ Country
Romaks Technologies 2,055 - -
Price on request
 No - No - 3mA @ 4.5V ~ 5.5V YY-MM-DD-dd Leap Year, Watchdog Timer - No Yes - Parallel - Gull Wing No - - - Surface Mount 0°C ~ 70°C - - - - - 28-SOH - - - - HH:MM:SS (24 hr) Clock/Calendar 4.5V ~ 5.5V - -
Product image for DS1747-70+ by Analog Devices / Maxim Integrated
DS1747-70+
Download Datasheet for DS1747-70+
Analog Devices / Maxim Integrated
2,052
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 2,052 - -
Price on request
 - - - - 4mA @ 5V YY-MM-DD-dd Leap Year, NVSRAM, Y2K - - - - Parallel 15.24 mm - - 512KB - - Through Hole 0°C ~ 70°C - - - - - 32-EDIP - - No - HH:MM:SS (24 hr) Clock/Calendar 4.5V ~ 5.5V - -
Showing 251-300 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.

Read full description
Home

Categories