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Maxim > Solutions > Cable Modems and CATV

Real-Time Clocks

DATA SHEETS
Display Title/Parts Key Advantages
QV  PDF I²C RTC with Trickle Charger
DS1340, DS1340C

I²C Real-Time Clock with Trickle Charger Offers Software Clock Calibration
QV  PDF I²C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
DS1374, DS1374C, DS1374U

Elapsed Time Counter Provides Power-On Reset, Watchdog or Alarm, and Square Wave
QV  PDF I²C RTC with 56-Byte NV RAM
DS1338, DS1338C, DS1338U, DS1338Z

QV  PDF I²C Serial Real-Time Clock
DS1339, DS1339C, DS1339U

RTC Provides System Flexibility with Multiple Programmable Features
QV  PDF I²C Serial Real-Time Clock
DS1337, DS1337C

Industry's Smallest I²C RTC with Two Time-of-Day Alarms
QV  PDF Total-Elapsed-Time Recorder with Alarm
DS1682

Industry's First Crystal-less Elapsed Time Counter
QV  PDF Real-Time Event Recorder
DS1678

QV  PDF Portable System Controller
DS1677

QV  PDF Portable System Controller
DS1673

QV  PDF I²C 32-Bit Binary Counter RTC
DS1672

Low-Voltage, Serial Timekeeping Chip Combines an Ultra-Low-Voltage Clock with Sophisticated Power-Monitoring Circuitry, Power-Fail Switches, and a Switch to Optional Trickle-Charging, Replacing Several Discrete Components with One Chip
QV  PDF Portable System Controller
DS1670




Key Specifications:  Timekeeping & Real-Time Clocks
Part Number Functions Date/ Time Format Interface VSUPPLY
(V)
Time Keeping Current
(nA)
CL
(pF)
Memory Type Memory Size
(Bytes)
Time of Day Alarms
hh = sec/100 typ
DS1340  - YY-MM-DD/ HH:MM:SS I2C
1.8
3
3.3
5
800 12.5 None - 0
DS1374 
Elapsed Time Counter
Watchdog Timekeeper
Binary I2C
1.8
3
3.3
5
400 6 None - 1
DS1338  - YY-MM-DD/ HH:MM:SS I2C
1.8
3
3.3
5
800 12.5 NV SRAM 56 0
DS1339  - YY-MM-DD/ HH:MM:SS I2C
2
3
3.3
5
400 6 None - 2
DS1337  - YY-MM-DD/ HH:MM:SS I2C
2
3
3.3
5
425 6 None - 2
DS1670 
NV SRAM Control
Watchdog Timekeeper
YY-MM-DD/ HH:MM:SS 3-Wire 3.3 300 6 None - 1
DS1672  Elapsed Time Counter Binary I2C
2
3
3.3
425 6 None - 0
DS1673 
NV SRAM Control
Watchdog Timekeeper
YY-MM-DD/ HH:MM:SS 3-Wire
3
5
300 6 None - 1
DS1677 
NV SRAM Control
Watchdog Timekeeper
YY-MM-DD/ HH:MM:SS 3-Wire 5 300 6 None - 1
DS1682  Time/Temperature/Event Recorder Binary I2C
3
3.3
5
- - EEPROM 10 1
DS1678  - YY-MM-DD/ HH:MM:SS I2C 5 300 12.5 None - 1
See All Timekeeping & Real-Time Clocks (80)



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