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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 (hh = sec/100) Interface Supply Voltage (V) Time- keeping Current (typ) (nA) CL, Load Capacitance (pF) Memory Type Memory Size (Bytes) Number of Time of Day Alarms
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 (85)


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