Real Time Clocks (RTC)

Analog Devices Inc. Real-time Clocks (RTCs) are offered in a wide range of low-power, highly accurate, small packages, and MEMs-based ICs. RTC ICs measure time, even when the power of the main device is off, so an auxiliary battery or supercapacitor are required. Power consumption is a key factor in most RTC designs, but accuracy and small package size are also important. The latest RTC ICs reduce package pin count by supporting a serial interface.

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Description Datasheet Availability Pricing (PLN) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model RTC Bus Interface
Date Format
Time Format
Package/Case
Battery Backup Switching
Supply Voltage - Min
Supply Voltage - Max
Minimum Operating Temperature
Maximum Operating Temperature
Series
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Time Keeping Current
Packaging

Analog Devices / Maxim Integrated Real Time Clock I C RTC with 56-Byte NV RAM
Datasheet
23 934In Stock
Min.: 1
Mult.: 1
Max.: 19 147

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SOIC-8 Backup Switching 3 V 5.5 V - 40 C + 85 C DS1338Z SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock I C RTC with Trickle Charger
Datasheet
5 864In Stock
Min.: 1
Mult.: 1
Max.: 4 691

I2C YY-MM-DD-dd HH:MM:SS (24 hr) SO-8 Backup Switching 1.71 V 1.89 V - 40 C + 85 C DS1340Z SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock Trickle-Charge Timekeeping Chip
Datasheet
1 803In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1 442

Serial 3-Wire YY-MM-DD-dd HH:MM:SS (24 hr) SOIC-8 Backup Switching 2 V 5.5 V 0 C + 70 C DS1302S SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock Low-Current I C RTC with 56-Byte NV RAM
Datasheet
2 433In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1 946

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) uSOP-8 Backup Switching 3 V 5.5 V - 40 C + 85 C DS1308U SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock I C RTC with Trickle Charger
Datasheet
1 516In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1 212

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) uSOP-8 Backup Switching 2.7 V 3.3 V - 40 C + 85 C DS1340U SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock Trickle-Charge Timekeeping Chip
Datasheet
542In Stock
Min.: 1
Mult.: 1
Max.: 434

Serial 3-Wire YY-MM-DD-dd HH:MM:SS (24 hr) SOIC-8 Backup Switching 2 V 5.5 V - 40 C + 70 C DS1302S SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock Serial Alarm Real-Time Clock
Datasheet
235In Stock
Min.: 1
Mult.: 1
Max.: 188

Serial 3-Wire, SPI YY-MM-DD HH:MM:SS (24 hr) DIP-16 Backup Switching 2 V 5.5 V 0 C + 70 C DS1306N Through Hole Tube

Analog Devices / Maxim Integrated Real Time Clock I C Serial Real-Time Clock
Datasheet
2 613In Stock
Min.: 1
Mult.: 1
Max.: 2 090

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) DIP-8 No Backup Switching 1.8 V 5.5 V - 40 C + 85 C DS1337 Through Hole Tube
Analog Devices / Maxim Integrated Real Time Clock I C RTC/Supervisor with Trickle Charger
Datasheet
325In Stock
Min.: 1
Mult.: 1
Max.: 260

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SOIC-8 Backup Switching 2.7 V 3.3 V - 40 C + 85 C DS1388Z SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle
Datasheet
429In Stock
Min.: 1
Mult.: 1
Max.: 344

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) uSOP-10 Backup Switching 2.7 V 3.3 V - 40 C + 85 C DS1390U SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle
Datasheet
3 125In Stock
Min.: 1
Mult.: 1
Max.: 2 500

Serial 3-Wire, SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) uSOP-10 Backup Switching 2.97 V 5.5 V - 40 C + 85 C DS1394U SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock I C RTC with 56-Byte NV RAM
Datasheet
2 778In Stock
Min.: 1
Mult.: 1
Max.: 2 342

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) SOIC-8 Backup Switching 2.7 V 5.5 V - 40 C + 85 C DS1338Z SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock I C 32-Bit Binary Counter RTC
Datasheet
664In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 531

Serial 2-Wire, I2C Binary Binary Backup Switching 2.97 V 3.63 V - 40 C + 85 C DS1672U SMD/SMT Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Real Time Clock I C Serial Real-Time Clock
Datasheet
1 309In Stock
Min.: 1
Mult.: 1
Max.: 1 047

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) uSOP-8 Backup Switching 2.7 V 3.3 V - 40 C + 85 C DS1339U SMD/SMT Tube
Analog Devices / Maxim Integrated Real Time Clock I C Serial Real-Time Clock
Datasheet
2 433In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1 946

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) uSOP-8 Backup Switching 2.7 V 3.3 V - 40 C + 85 C DS1339U SMD/SMT Reel, Cut Tape, MouseReel

Analog Devices / Maxim Integrated Real Time Clock Low-Current I C RTCs for High-ESR Crystals
Datasheet
1 063In Stock
Min.: 1
Mult.: 1
Max.: 870

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) uSOP-8 No Backup Switching 1.8 V 5.5 V - 40 C + 85 C DS1342U SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock Serial Alarm Real-Time Clock
Datasheet
1 067In Stock
Min.: 1
Mult.: 1
Max.: 853

Serial 3-Wire, SPI YY-MM-DD HH:MM:SS (24 hr) DIP-16 Backup Switching 2 V 5.5 V - 40 C + 85 C DS1305N Through Hole Tube

Analog Devices / Maxim Integrated Real Time Clock 64 x 8, Serial, I C Real-Time Clock
Datasheet
389In Stock
Min.: 1
Mult.: 1
Max.: 311

I2C YY-MM-DD HH:MM:SS:hh (12 hr, 24 hr) PDIP-8 Backup Switching 4.5 V 5.5 V - 40 C + 85 C DS1307N Through Hole Tube
Analog Devices / Maxim Integrated Real Time Clock I C 32-Bit Binary Counter RTC
Datasheet
1 980In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1 584

Serial 2-Wire, I2C Binary Binary SOIC-8 Backup Switching 2.7 V 3.3 V - 40 C + 85 C DS1672S SMD/SMT Reel, Cut Tape, MouseReel

Analog Devices / Maxim Integrated Real Time Clock I C RTC with Trickle Charger
Datasheet
204In Stock
Min.: 1
Mult.: 1
Max.: 163

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) uSOP-8 Backup Switching 2.7 V 3.3 V - 40 C + 85 C DS1340U SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock Low-Current SPI/3-Wire RTCs
Datasheet
152In Stock
Min.: 1
Mult.: 1
Max.: 121

Serial 3-Wire, SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) TDFN-EP-14 Backup Switching 3 V 5.5 V - 40 C + 85 C DS1343D SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock Low-Current SPI/3-Wire RTCs
Datasheet
155In Stock
Min.: 1
Mult.: 1
Max.: 124

Serial 3-Wire, SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) TSSOP-20 Backup Switching 3 V 5.5 V - 40 C + 85 C DS1343E SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock I C 32-Bit Binary Counter RTC
Datasheet
208In Stock
Min.: 1
Mult.: 1
Max.: 166

Serial 2-Wire, I2C Binary Binary uSOP-8 Backup Switching 2.97 V 3.63 V - 40 C + 85 C DS1672U SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock I C RTC with Trickle Charger
Datasheet
259In Stock
Min.: 1
Mult.: 1
Max.: 207

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS (24 hr) uSOP-8 Backup Switching 1.71 V 1.89 V - 40 C + 85 C DS1340U SMD/SMT Tube

Analog Devices / Maxim Integrated Real Time Clock Trickle-Charge Timekeeping Chip
Datasheet
4 691In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 4 328
: 2 500

Serial 3-Wire YY-MM-DD-dd HH:MM:SS (24 hr) SOIC-8 Backup Switching 2 V 5.5 V - 40 C + 85 C DS1302ZN SMD/SMT Reel, Cut Tape, MouseReel