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 Applications Automotive Grade Clock Frequency Conflict Minerals Current Date Format Failure Rate Features Function Height Industrial Grade Interface Interrupt Output Lead Spacing Lead Style Length Medical Grade Memory Size Military Grade Mounting Style Mounting Type Number of Pins Number of Terminations Operating Range Operating Temperature Operating Temperature Range Operating Voltage Output Frequency Package / Case Pitch RAM Size SVHC Present Storage Temperature Supplier Device Package Supplier Package Supply Current Supply Voltage Tape & Reel Technology Temperature Range Termination Style Thickness Time Format Type Voltage Voltage Supply Watchdog Timer Width
Product image for DS3232MZ+TRL by Analog Devices / Maxim Integrated
DS3232MZ+TRL
Download Datasheet for DS3232MZ+TRL
Analog Devices / Maxim Integrated
1,012
From Xingangxin
Distributor Stock MOQ Country
Xingangxin 1,012 - -
Price on request
 - - - - - - 175µA YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output, SRAM - - - I²C - - - - - 236B - - Surface Mount - - - -40°C ~ 85°C - - - - - - - - 8-SOIC 8-SOIC (0.154", 3.90mm Width) - - Yes - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.3V ~ 4.5V - - -
Product image for R2043T-E2-F by Nisshinbo Micro Devices
R2043T-E2-F
Download Datasheet for R2043T-E2-F
Nisshinbo Micro Devices
1,000
From PROSOFT ELECTRONICS
Distributor Stock MOQ Country
PROSOFT ELECTRONICS 1,000 - -
$5.21
 No - - No - - 0.45µA / 1.00µA YY-MM-DD-dd - Alarm, Leap Year - - No 4-Wire Serial - - - - No - No - Surface Mount - - - -40°C / 85°C - - - - - - - - 10-TSSOPG - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.00V / 0.66V / 5.5V - - -
Product image for M41T93SQA6F by STMicroelectronics
M41T93SQA6F
STMicroelectronics
1,000
From Fe Components
Distributor Stock MOQ Country
Fe Components 1,000 - -
$3.00
 - - - - - - 10µA @ 5.5V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer - - - SPI - - - - - 7B - - Surface Mount - - - -40°C ~ 85°C - - - - - - - - 16-QFN (4x4) - - - - - - - - HH:MM:SS:hh (24 hr) Clock/Calendar 1.8V ~ 5.5V - - -
Product image for MCP79400-I/SN by Microchip Technology
MCP79400-I/SN
Download Datasheet for MCP79400-I/SN
Microchip Technology
1,000
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 1,000 - -
$5.21
 - - - - - - 1.2µA (Typ) @ 3.3V Dw:Dm:M:Y Mcp79400 Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Clock, Calendar - - I²C, 2-Wire Serial - 3.9 mm - - - 64 b - Smd/Smt Surface Mount - - - -40°C ~ 85°C - - - - - - - - 8-SOIC - 1.2 µA (Typ) @ 3.3V 1.3 V ~ 5.5 V - - - - - hh:mm:ss (12 hr , 24 hr) Clock/Calendar 1.3V ~ 5.5V - - -
Product image for PCF2131TFY by NXP Semiconductors
PCF2131TFY
NXP Semiconductors
1,000
From Xingangxin
Distributor Stock MOQ Country
Xingangxin 1,000 - -
$5.21
 - - - - - REACH Unaffected 770nA ~ 2.135µA YY-MM-DD-dd - Alarm, Leap Year, SRAM, Watchdog Timer - - - I²C, SPI - - - - - 8B - - Surface Mount, Wettable Flank - - - -40°C ~ 85°C - - - - - - - - 16-HLSON (4.5x3.5) - - - No - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 1.2V ~ 5.5V - - -
Product image for DS1388Z-33 by Analog Devices / Maxim Integrated
DS1388Z-33
Analog Devices / Maxim Integrated
1,000
From Xingangxin
Distributor Stock MOQ Country
Xingangxin 1,000 - -
Price on request
 - - - - - - 150µA @ 2.97V ~ 3.63V YY-MM-DD-dd - Alarm, EEPROM, Leap Year, Supervisor, Trickle-Charger, Watchdog Timer - - - I²C - - - - - 512B - - Surface Mount - - - -40°C ~ 85°C (TA) - - - - - - - - 8-SOIC - - - - - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 1.3V ~ 5.5V - - -
Product image for DS1340U-33+ by Analog Devices / Maxim Integrated
DS1340U-33+
Download Datasheet for DS1340U-33+
Analog Devices / Maxim Integrated
977
Across 3 distributors
Distributor Stock MOQ Country
Braun Electronic Components 610 - -
Risen Electronics 366 - -
Partservice 1 - -
Price on request
 No - - No - - 150µA YY-MM-DD-dd - Leap Year, Trickle-Charger - - No I2C - 3.00 mm - - No - No - Surface Mount - - - -40°C - - - - - - - - 8-uMAX/uSOP - - - No - - - - HH:MM:SS (24 hr) Clock/Calendar 1.3V - - -
Product image for MCP79400-I/MS by Microchip Technology
MCP79400-I/MS
Download Datasheet for MCP79400-I/MS
Microchip Technology
975
Across 2 distributors
Distributor Stock MOQ Country
Braun Electronic Components 973 - -
Partservice 2 - -
$5.21
 - - - - - - 1.2µA (Typ) @ 3.3V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output, SRAM, Unique ID - - - I2C, 2-Wire Serial - - - - - 64B - - Surface Mount - - - -40°C - - - - - - - - 8-MSOP - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.3V ~ 5.5V 1.8V - -
Product image for PT7C433833UEX by Diodes Incorporated
PT7C433833UEX
Download Datasheet for PT7C433833UEX
Diodes Incorporated
952
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 952 - -
$5.21
 - - - - - - 125µA @ 2.7V ~ 5.5V YY-MM-DD-dd - Leap Year, NVSRAM, Square Wave Output - - - I2C, 2-Wire Serial - - - - - 56B - - Surface Mount - - - -40°C - 2.7V - - - - - - 8-MSOP - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.5V ~ 3.7V - - -
Product image for BQ4285P-SB2 by Texas Instruments
BQ4285P-SB2
Download Datasheet for BQ4285P-SB2
Texas Instruments
900
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 900 - -
Price on request
 - - - - - - - YY-MM-DD-dd - Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output - - - Parallel - - - - - 114 B - - Through Hole - - - 0°C ~ 70°C - - - - - - - - 24-PDIP - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.5V ~ 4V 4.5V ~ 5.5V - -
Product image for RX-8571LC:B3 PURE SN by Epson
RX-8571LC:B3 PURE SN
Epson
870
From Speed Components Ltd
Distributor Stock MOQ Country
Speed Components Ltd 870 - -
$5.21
 - - - - - - 0.55µA ~ 0.6µA @ 3V ~ 5V YY-MM-DD-dd - Alarm, Leap Year, RAM - - - I2C, 2-Wire Serial - - - - - 16B - - Surface Mount - - - -40°C ~ 85°C - - - - - - - - 12-VSOJ 12-VSOJ - - - - - - - HH:MM:SS (24 hr) Clock/Calendar 1.6V ~ 5.5V 1.6V ~ 5.5V - -
Product image for BQ3285EP by Texas Instruments
BQ3285EP
Download Datasheet for BQ3285EP
Texas Instruments
851
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 851 - -
Price on request
 - - - - - - 300 µA @ 5V YY-MM-DD-dd - Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output - - - Parallel - - - - - 242 B - - Through Hole - - - 0°C ~ 70°C - - - - - - - - 24-PDIP - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.5V ~ 4V - - -
Product image for M48T201Y-70MH1F by STMicroelectronics
M48T201Y-70MH1F
STMicroelectronics
845
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 845 - -
$5.21
 - - - - - Unaffected 3mA @ 4.5V ~ 5.5V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K - - - Parallel - - - - - - - Smd/Smt Surface Mount - - - 0°C ~ 70°C - - - - - - Not Present - 44-SOH - - - - - - - - HH:MM:SS (24 hr) Clock/Calendar 3V - - -
Product image for BQ4802LYDW by Texas Instruments
BQ4802LYDW
Texas Instruments
805
Across 2 distributors
Distributor Stock MOQ Country
Partservice 5 - -
Optech Co.,Limited 800 - -
$4.23
 - - - - - - 1.5mA YY-MM-DD-dd - Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - - - Parallel - 1.27 mm Gull Wing - - - - - Surface Mount - - - 0°C - - - - - - - - 28-SOIC - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 3.3V - - -
Product image for BQ4845S-A4N by Texas Instruments
BQ4845S-A4N
Download Datasheet for BQ4845S-A4N
Texas Instruments
795
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 795 - -
Price on request
 - - - - - - 1.5mA (Typ) @ 4.5 V ~ 5.5 V YY-MM-DD-dd - Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - - - Parallel - - - 17.9 mm - - - - Surface Mount - - - -40°C ~ 85°C - - - - 1.27 mm - - - 28-SOIC - - - - - - Gull Wing 2.35 mm HH:MM:SS (12/24 hr) Clock/Calendar 2.3V ~ 4V - - 7.5 mm
Product image for ISL12022MIBZ by Renesas
ISL12022MIBZ
Renesas
760
From Braun Electronic Components
Distributor Stock MOQ Country
Braun Electronic Components 760 - -
Price on request
 - - - - - - 14µA / 15µA YY-MM-DD-dd Isl12022 Alarm, Daylight Savings, Leap Year, SRAM Alarm, Calendar, Clock, Interrupt - - I²C, 2-Wire Serial - - - - - 128 b - Smd/Smt Surface Mount - - - -40°C / 85°C - - - - - - - - 20-SOIC - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.8 V / 5.5 V - - -
Product image for CDP68HC68T1MZ by Renesas
CDP68HC68T1MZ
Renesas
760
From Seba Components
Distributor Stock MOQ Country
Seba Components 760 - -
Price on request
 - - - - - - 500µA @ 5V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output, Watchdog Timer - - - SPI - - - - - 32B - - Surface Mount - - - -40°C ~ 85°C - - - 20-SOIC (0.295", 7.50mm Width) - - - - 20-SOIC - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.2V ~ 6V - - -
Product image for BQ3285ESS by Texas Instruments
BQ3285ESS
Download Datasheet for BQ3285ESS
Texas Instruments
756
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 756 - -
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 - - 32.768kHz - - - - - 24-SSOP - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.5V ~ 4V - - -
Product image for BQ3285ES by Texas Instruments
BQ3285ES
Texas Instruments
747
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 747 - -
$7.82
 - - - - - - 300 µA @ 5V YY-MM-DD-dd - Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output; 0.242-kB memory density, 14 RTC bytes, Multiplexed bus interface, RAM clear function - - - Parallel - - - - - 242 B - - Surface Mount - - - 0°C ~ 70°C - - - - - - - - 24-SOIC - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.5 V ~ 4 V - - -
Product image for DS1371U+C01 by Analog Devices / Maxim Integrated
DS1371U+C01
Download Datasheet for DS1371U+C01
Analog Devices / Maxim Integrated
735
From Bristol Electronics
Distributor Stock MOQ Country
Bristol Electronics 735 - -
Price on request
 - - - - - - 1.3µA @ 1.7V ~ 5.5V Binary - Alarm, Square Wave Output, Watchdog Timer; 32-Bit Binary Counter, 24-Bit Binary Counter Provides Periodic Alarm, Watchdog Timer, or RAM, Strobe Input to Reset Watchdog Timer, Single Output Configurable as Interrupt or Square Wave, I2C Serial Interface, Low-Voltage Operation - - - I2C - 3.0 mm - - - - - - Surface Mount - - - -40°C ~ 85°C - - - - - - - °C ~ °C 8-uMAX/uSOP 8-uMAX/uSOP - - No - - - - Binary Binary Counter 1.7V ~ 5.5V - - -
Product image for DS3231SN# by Analog Devices / Maxim Integrated
DS3231SN#
Download Datasheet for DS3231SN#
Analog Devices / Maxim Integrated
722
Across 3 distributors
Distributor Stock MOQ Country
Fe Components 717 - -
Bristol Electronics 5 - -
HK XINYUANXIN ELECTRONIC TECH LIMITED Stock on Request - -
Price on request
 - - - - - - 110µA ~ 170µA @ 3.63V ~ 5.5V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output, TCXO/Crystal - - - I²C, 2-Wire Serial - - - - - - - - Surface Mount - - - -40°C ~ 85°C - - - - - - - - 16-SOIC 16-SOIC - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.3V ~ 5.5V - - -
Product image for PCA2131TF/Q900Y by NXP Semiconductors
PCA2131TF/Q900Y
NXP Semiconductors
693
Across 2 distributors
Distributor Stock MOQ Country
Optech Co.,Limited 693 - -
HK XINYUANXIN ELECTRONIC TECH LIMITED Stock on Request - -
$5.21
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - °C ~ °C - - - - No - - - - - - - - - -
Product image for DS1500YE by Analog Devices / Maxim Integrated
DS1500YE
Download Datasheet for DS1500YE
Analog Devices / Maxim Integrated
677
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 677 - -
Price on request
 - Better than ±1 Minute/Month at +25°C - - - - 5mA @ 4.5V ~ 5.5V YY-MM-DD-dd - Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K - - - Parallel - - - - - 256B - - Surface Mount - - - 0°C ~ 70°C - - - 32-TSOP - - - - 32-TSOP - - - - - -40°C to +85°C - - HH:MM:SS (24 hr) Clock/Calendar 2.5V ~ 3.7V - Yes -
Product image for DS1374C-33#T&R by Analog Devices / Maxim Integrated
DS1374C-33#T&R
Download Datasheet for DS1374C-33#T&R
Analog Devices / Maxim Integrated
659
From Speed Components Ltd
Distributor Stock MOQ Country
Speed Components Ltd 659 - -
Price on request
 - - - - - - 175µA Binary - Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer - - - I2C, 2-Wire Serial - 7.5 mm - - - - - - Surface Mount - - - -40°C - - - - - - - - 16-SOIC - - - Tape & Reel - - - - Binary Binary Counter 1.3 V - - -
Product image for DS1248Y-70IND by Analog Devices / Maxim Integrated
DS1248Y-70IND
Download Datasheet for DS1248Y-70IND
Analog Devices / Maxim Integrated
644
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 644 - -
Price on request
 - - - - - - 10mA @ 5V YY-MM-DD-dd - NVSRAM - - - Parallel - - Through Hole - - 128KB - - Through Hole - - Full 10% -40°C ~ 85°C - - - - - - - - 32-EDIP - - - - - - - - HH:MM:SS:hh (12/24 hr) Phantom Time Chip 5V ±10% - - -
Product image for ISL12026IBZ-T by Renesas
ISL12026IBZ-T
Renesas
600
From PROSOFT ELECTRONICS
Distributor Stock MOQ Country
PROSOFT ELECTRONICS 600 - -
Price on request
 - - - - - - 10µA ~ 20µA @ 2.7V ~ 5.5V YY-MM-DD-dd - Alarm, Leap Year - - - I2C, 2-Wire Serial - - - - - - - - Surface Mount - - - -40°C - 2.7V - - - - - - 8-SOIC - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.8V ~ 5.5V - - -
Product image for BQ3285LSS by Texas Instruments
BQ3285LSS
Texas Instruments
600
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 600 - -
Price on request
 - - - - - - - YY-MM-DD-dd - Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output - - - Parallel - - - - - 242 B - - Surface Mount - - - - - - - - - - - - 24-SSOP - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.4V ~ 4V - - -
Product image for BQ4845YS-A4 by Texas Instruments
BQ4845YS-A4
Download Datasheet for BQ4845YS-A4
Texas Instruments
600
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 600 - -
Price on request
 - - - - - - 1.5 mA (Typ) @ 4.5V~5.5V YY-MM-DD-dd - Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - - - Parallel - - - - - - - - Surface Mount - - - 0°C ~ 70°C - - - - - - - - 28-SOIC - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.3V ~ 4V - - -
Product image for BQ4845YS-A4N by Texas Instruments
BQ4845YS-A4N
Download Datasheet for BQ4845YS-A4N
Texas Instruments
581
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 581 - -
Price on request
 - - - - - - 1.5mA (Typ) YY-MM-DD-dd - Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - - - Parallel - 1.27 mm Gull Wing - - - - - Surface Mount - - - -40°C to 85°C - - - - - - Not Present - 28-SOIC 28-SOIC - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.3V to 4V - - -
Product image for M48T212V-85MH1E by STMicroelectronics
M48T212V-85MH1E
Download Datasheet for M48T212V-85MH1E
STMicroelectronics
520
From PROSOFT ELECTRONICS
Distributor Stock MOQ Country
PROSOFT ELECTRONICS 520 - -
$5.21
 - - - - - - 2mA @ 3V ~ 3.6V YY-MM-DD-dd - Alarm, Leap Year, Watchdog Timer, Y2K - - - Parallel - 8.56 mm - - - - - - Surface Mount - - - 0°C ~ 70°C - - - - - - - °C ~ °C 44-SOH - - - No - - - - HH:MM:SS (24 hr) Clock/Calendar 3.3V - Yes -
Product image for M48T08Y-10MH1E by STMicroelectronics
M48T08Y-10MH1E
STMicroelectronics
513
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 513 - -
$5.21
 - - - - - - 3mA @ 4.5V ~ 5.5V YY-MM-DD-dd - Leap Year, Watchdog Timer - - - Parallel - - - - - - - - Surface Mount - - - 0°C ~ 70°C - - - - - - - - 28-SOH 28-SOH - - - - - - - HH:MM:SS (24 hr) Clock/Calendar 4.5V ~ 5.5V - - -
Product image for DS12887A+ by Analog Devices / Maxim Integrated
DS12887A+
Analog Devices / Maxim Integrated
504
From Fe Components
Distributor Stock MOQ Country
Fe Components 504 - -
Price on request
 - - - - - - 15mA @ 4.5V ~ 5.5V YY-MM-DD-dd - Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output - - - Parallel - 15.24 mm - - - 114B - - Through Hole - - - 0°C to 70°C - - - - - - - - 24-EDIP - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.5V to 4V - - -
Product image for M41T11MH6E by STMicroelectronics
M41T11MH6E
STMicroelectronics
472
Across 3 distributors
Distributor Stock MOQ Country
Speed Components Ltd 12 - -
Hybrid Electronics 80 - -
Smaxon Electronics 380 - -
$3.00
 - - - - 0.032MHz - 70µA YY-MM-DD-dd - Leap Year, NVSRAM - 2.69mm - I2C, 2-Wire Serial - - - 18.49mm - 56B - - Surface Mount 28 28 - -40°C - 2V - - - 56B - - 28-SOH - - - No CMOS - - - HH:MM:SS Clock/Calendar 2.5V ~ 3.5V - - 8.89mm
Product image for M48T212V-85MH1F by STMicroelectronics
M48T212V-85MH1F
Download Datasheet for M48T212V-85MH1F
STMicroelectronics
460
From PROSOFT ELECTRONICS
Distributor Stock MOQ Country
PROSOFT ELECTRONICS 460 - -
$5.21
 - - - - - - 2mA @ 3V ~ 3.6V YY-MM-DD-dd - Alarm, Leap Year, Watchdog Timer, Y2K - - - Parallel - - - - - - - - Surface Mount - - - 0°C ~ 70°C - - - - - - - - 44-SOH 44-SOH - - Tape & Reel (TR) - - - - HH:MM:SS (24 hr) Clock/Calendar 3V ~ 3.6V - true -
Product image for DS1347T+T&R by Analog Devices / Maxim Integrated
DS1347T+T&R
Download Datasheet for DS1347T+T&R
Analog Devices / Maxim Integrated
410
From Bristol Electronics
Distributor Stock MOQ Country
Bristol Electronics 410 - -
Price on request
 - - - - - - 0.7µA YY-MM-DD-dd - Alarm, Leap Year, SRAM - - - SPI - 3 mm - - - - - - Surface Mount - - - -40°C - - - - - - - - 8-TDFN (3x3) - - - True - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2V - - -
Product image for BQ4802YDW by Texas Instruments
BQ4802YDW
Texas Instruments
382
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 382 - -
$11.77
 - - - - - - 1.5mA YY-MM-DD-dd - Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer; 16 RTC bytes, External SRAM control, Integrated CPU supervisor, Parallel bus interface Real-time clock - - Parallel - - - - - - - - Surface Mount - - - 0°C - - - - - - Not Present - 28-SOIC 28-SOIC - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2.4V - - -
Product image for DS1391U-33 by Analog Devices / Maxim Integrated
DS1391U-33
Download Datasheet for DS1391U-33
Analog Devices / Maxim Integrated
355
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 355 - -
Price on request
 - - Hand-Held Devices, GPS/Telematics Devices, Embedded Time Stamping, Medical Devices - - - 175µA @ 2.97V ~ 5.5V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output, Trickle-Charger - - - SPI - - - - - - - - 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 DS1746W-120IND by Analog Devices / Maxim Integrated
DS1746W-120IND
Download Datasheet for DS1746W-120IND
Analog Devices / Maxim Integrated
346
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 346 - -
Price on request
 - - - - - - 2mA @ 3.3V YY-MM-DD-dd - Leap Year, NVSRAM, Y2K - - - Parallel - - - - - 128 KB - - Through Hole - - - -40°C ~ 85°C - - - - - - - - 32-EDIP - - - - - - - - HH:MM:SS (24 hr) Clock/Calendar 2.97V ~ 3.63V - - -
Product image for DS1305EN+ by Analog Devices / Maxim Integrated
DS1305EN+
Download Datasheet for DS1305EN+
Analog Devices / Maxim Integrated
336
Across 2 distributors
Distributor Stock MOQ Country
Risen Electronics 104 - -
Partservice 232 - -
Price on request
 - - - - - - 25.3µA ~ 81µA YY-MM-DD-dd - Alarm, Leap Year, NVSRAM, Trickle-Charger - - - SPI - 4.4 mm - - - 96B - - Surface Mount - - - -40°C ~ 85°C - - - - - - - - 20-TSSOP - - - - - -40°C to +85°C - - HH:MM:SS (12/24 hr) Clock/Calendar 2V ~ 5.5V - - -
Product image for ICM7170AIBG by Rochester Electronics
ICM7170AIBG
Rochester Electronics
325
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 325 - -
$16.75
 No - - No - - 20µA @ 5V YY-MM-DD-dd - Alarm - - No - - 7.5 mm - - No - No - Surface Mount - - - -40°C ~ 85°C (TA) - - - - - - - - 24-SOIC - - - No - - - - HH:MM:SS:hh (12/24 hr) Clock/Calendar 2.8V ~ 3.5V - - -
Product image for DS1338U-33+ by Analog Devices / Maxim Integrated
DS1338U-33+
Download Datasheet for DS1338U-33+
Analog Devices / Maxim Integrated
323
Across 2 distributors
Distributor Stock MOQ Country
Risen Electronics 300 - -
Bristol Electronics 23 - -
Price on request
 - - - - - - 125µA ~ 200µA @ 3.63V ~ 5.5V YY-MM-DD-dd - Leap Year, NVSRAM, Square Wave Output - - - I2C - - - - - 56B - - Surface Mount - - - -40°C ~ 85°C - - - - - - - - 8-uMAX/uSOP - - - - - - - - 12/24 hr Clock/Calendar 3.3V - - -
Product image for DS1307ZN+ by Analog Devices / Maxim Integrated
DS1307ZN+
Download Datasheet for DS1307ZN+
Analog Devices / Maxim Integrated
303
Across 5 distributors
Distributor Stock MOQ Country
Braun Electronic Components 124 - -
Risen Electronics 5 - -
Emiteli 124 - -
Hybrid Electronics 50 - -
HK XINYUANXIN ELECTRONIC TECH LIMITED Stock on Request - -
Price on request
 - - - - - - 200µA @ 5V YY-MM-DD-dd - Leap Year, NVSRAM, Square Wave Output - - - I²C, 2-Wire Serial - - - - - 56B - - Surface Mount - - - -40°C ~ 85°C - - - - - - - - 8-SOIC - - - True - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2V ~ 3.5V - - -
Product image for MCP7940M-I/MS by Microchip Technology
MCP7940M-I/MS
Download Datasheet for MCP7940M-I/MS
Microchip Technology
300
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 300 - -
$5.21
 - - - - - - 1µA @ 5.5V YY-MM-DD-dd - Alarm, Leap Year, Square Wave Output, SRAM - - - I²C, 2-Wire Serial - 3.0 mm - - - 64B - - Surface Mount - - - -40°C to 85°C - - - - - - - - 8-MSOP - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.8V to 5.5V - - -
Product image for DS1307N+ by Analog Devices / Maxim Integrated
DS1307N+
Download Datasheet for DS1307N+
Analog Devices / Maxim Integrated
290
Across 2 distributors
Distributor Stock MOQ Country
Fe Components 90 - -
Hybrid Electronics 200 - -
Price on request
 - - - - - - 200µA @ 5V YY-MM-DD-dd - Leap Year, NVSRAM, Square Wave Output - - - I²C, 2-Wire Serial - 7.62 mm - - - 56B - - Through Hole - - - -40°C to +85°C - - - - - - - - 8-PDIP 8-PDIP - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2V - 3.5V - - -
Product image for AB-RTCMC-32.768KHZ-EOZ9-S3-DBT by Abracon LLC
AB-RTCMC-32.768KHZ-EOZ9-S3-DBT
Download Datasheet for AB-RTCMC-32.768KHZ-EOZ9-S3-DBT
Abracon LLC
277
Across 2 distributors
Distributor Stock MOQ Country
Bristol Electronics 272 - -
Trace Tec 5 - -
Price on request
 - - - - - - 1.5µA ~ 2.2µA @ 1.4V ~ 5V YY-MM-DD-dd - Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Trickle-Charger - - - I²C, 2-Wire Serial - - - - - 8B - - Surface Mount - - - -40°C ~ 85°C -40°C to +125°C - - - - - - - Module - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.4V ~ 5.5V - - -
Product image for BQ4845S-A4NTR by Texas Instruments
BQ4845S-A4NTR
Download Datasheet for BQ4845S-A4NTR
Texas Instruments
253
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 253 - -
Price on request
 - - - - - - 1.5mA (Typ) @ 4.5V ~ 5.5V YY-MM-DD-dd - Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - - - Parallel - - Gull Wing - - - - - Surface Mount - - - -40°C ~ 85°C - - - - - - - - 28-SOIC - - 4.5V ~ 5.5V Yes (from part suffix 'TR') - - Gull Wing - HH:MM:SS (12/24 hr) Clock/Calendar 2.3V ~ 4V - - -
Product image for PT7C4302WEX by Diodes Incorporated
PT7C4302WEX
Download Datasheet for PT7C4302WEX
Diodes Incorporated
230
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 230 - -
$5.21
 - - - - - - 25.3µA ~ 81µA @ 2V ~ 5V YY-MM-DD-dd - Leap Year, NVSRAM, Square Wave Output, Trickle-Charger - - - 3-Wire Serial - - - - - 31B - - Surface Mount - - - -40°C to 85°C - 1.2V to 5.5V - - - - - - 8-SOIC - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.5V ~ 5.5V - - -
Product image for ISL12026AIVZ by Renesas
ISL12026AIVZ
Renesas
227
From Braun Electronic Components
Distributor Stock MOQ Country
Braun Electronic Components 227 - -
Price on request
 - - - - - - 10µA ~ 20µA @ 2.7V ~ 5.5V Dw:Dm:M:Y - Alarm, Leap Year Clock, Calendar, Alarm, Interrupt 0.9 mm - Serial (I2c) - 4.4 mm - 3 mm - - - - Surface Mount - - - -40°C ~ 85°C - - - - - - - - 8-TSSOP - - - - - - - - hh:mm:ss hh:mm:ss Clock/Calendar 2.7V ~ 5.5V - - 4.4 mm
Product image for DS12R885S-33+ by Analog Devices / Maxim Integrated
DS12R885S-33+
Download Datasheet for DS12R885S-33+
Analog Devices / Maxim Integrated
219
From Speed Components Ltd
Distributor Stock MOQ Country
Speed Components Ltd 219 - -
Price on request
 - - - - - - 2mA @ 2.97V ~ 3.63V YY-MM-DD-dd - Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger - - - Parallel Three Independently Maskable Interrupt Flags - - - - 114B - - Surface Mount - - - -40°C ~ 85°C - 3.3V - - - - - - 24-SOIC 24-SOIC - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 2V ~ 3.05V - - -
Product image for DS1308U-33+ by Analog Devices / Maxim Integrated
DS1308U-33+
Download Datasheet for DS1308U-33+
Analog Devices / Maxim Integrated
203
From Speed Components Ltd
Distributor Stock MOQ Country
Speed Components Ltd 203 - -
Price on request
 - - - - - - 125µA to 200µA @ 3V to 5.5V YY-MM-DD-dd - Leap Year, NVSRAM, Square Wave Output - - - I²C, 2-Wire Serial - - - - - 56 Bytes - - Surface Mount - - - -40°C to +85°C - - - - - - - - 8-uMAX/uSOP - - - - - - - - HH:MM:SS (12/24 hr) Clock/Calendar 1.3V to 5.5V - - -
Showing 351-400 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