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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 Applications fIN
(MHz)
fIN
(MHz)
fOUT
(MHz)
fOUT
(MHz)
Fixed or Continuous Frequency Output Levels Out-
puts
PLLs Program-
mability
Spread Spectrum Output Jitter
(ps)
VSUPPLY
(V)
Package/Pins
min max min max RMS
MAX9471  General Purpose 5 50 4 200 Continuous LVCMOS 4 2 Factory One-Time Programmable (OTP) No 14 3.3
TQFN/20
MAX9472  3
See Data Sheet/
See All Clock Generators (27)

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
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
1.8
3
3.3
5
800 12.5 NV SRAM 56 0
DS1339  - YY-MM-DD/ HH:MM:SS
2
3
3.3
5
400 6 None - 2
DS1337  - YY-MM-DD/ HH:MM:SS
2
3
3.3
5
425 6 None - 2
DS1672  Elapsed Time Counter Binary
2
3
3.3
425 6 None - 0
DS1682  Time/Temperature/Event Recorder Binary
3
3.3
5
- - EEPROM 10 1
DS1678  - YY-MM-DD/ HH:MM:SS 5 300 12.5 None - 1
See All Timekeeping & Real-Time Clocks (80)



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