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Maxim > Solutions > Broadcast TV and Radio

Real-Time Clocks

DATA SHEETS
Display Title / Parts Key Advantages
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 Multiple Output Clock Generators with Dual PLLs and OTP
MAX9471, MAX9472

Bidirectional Composite Video Signal, Single-Supply Operation, Two Composite Inputs and Outputs
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 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



Key Specifications:   Clock Generators
Part Number Input Reference Range (MHz) Output Frequencies (MHz) Output Type Number of Outputs Number of PLLs Programmability VCXO ± ppm Spread Spectrum Output Jitter (ps) Supply Voltage (V) Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C)
MAX9471  5 to 50 4 to 200 LVCMOS 4 2 Factory One-Time Progammable (OTP) 200  -  14 (RMS) 3.0 to 3.6 THIN QFN/20 26 -40 to +85
MAX9472  5 to 50 4 to 200 LVCMOS 3 2 Factory One-Time Progammable (OTP) 200 No 14 (RMS) 3.0 to 3.6 See Data Sheet  -  -40 to +85
See All Clock Generators (22)

Key Specifications:   Timekeeping & Real-Time Clocks
Part Number Functions Time Format (hh = sec/100) Date Format Interface Supply Voltage (V) Time- keeping Current (typ) (nA) CL, Load Capacitance (pF) Memory Type Memory Size (Bytes) Number of Time of Day Alarms Features Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C)
DS1374 
Elapsed Time Counter
Watchdog Timekeeper
Binary Binary I2C 1.8
3
3.3
5
400 6 None  -  1
µP Reset
Periodic Interrupt
SOIC Package with Integrated Crystal
Trickle Charger
SOIC/16
uSOP/10
15 -40 to +85
DS1338   -  HH:MM:SS YY-MM-DD I2C 1.8
3
3.3
5
800 12.5 NV SRAM 56 0
SOIC Package with Integrated Crystal
Square-Wave Output
SOIC/16
SOIC/8
uSOP/8
16 -40 to +85
DS1339   -  HH:MM:SS YY-MM-DD I2C 2
3
3.3
5
400 6 None  -  2
SOIC Package with Integrated Crystal
Square-Wave Output
Trickle Charger
SOIC/16
uSOP/8
16 -40 to +85
DS1337   -  HH:MM:SS YY-MM-DD I2C 2
3
3.3
5
425 6 None  -  2
SOIC Package with Integrated Crystal
Square-Wave Output
PDIP/8
SOIC/16
SOIC/8
uSOP/8
16  - 
DS1672 
Elapsed Time Counter
Binary Binary I2C 2
3
3.3
425 6 None  -  0
Trickle Charger
PDIP/8
SOIC/8
uSOP/8
16 -40 to +85
DS1682 
Time/Temperature/Event Recorder
Binary Binary I2C 3
3.3
5
 -   -  EEPROM 10 1  -  SOIC/8 31 -40 to +85
DS1678   -  HH:MM:SS YY-MM-DD I2C 5 300 12.5 None  -  1  -  PDIP/8
SOIC/8
44 -40 to +85
See All Timekeeping & Real-Time Clocks (86)




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