DS1643-85+
RoHS 
RoHS compliant
RoHS compliantPackage 28-DIP Module (0.600, 15.24mm)
Category Integrated Circuits (ICs) / Clock/Timing - Real Time Clocks
Description
28-DIP Module (0.600 15.24mm) DS1643 R-XDMA-U34 Leap Year NVSRAM rtc clock circuit 4.5V~5.5V 3mA @ 5V 0.032MHz 0C~70C
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Technical Details
Physical
Mount Through Hole
Mounting Type Through Hole
Package / Case 28-DIP Module (0.600, 15.24mm)
Number of Pins 28
Technical
Operating Temperature 0°C~70°C
Packaging Tube
Published 2010
JESD-609 Code e3
Feature Leap Year, NVSRAM
Pbfree Code yes
Part Status Obsolete
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 34
ECCN Code EAR99
Type Clock/Calendar
Terminal Finish MATTE TIN
HTS Code 8473.30.11.80
Technology CMOS
Voltage - Supply 4.5V~5.5V
Terminal Position DUAL
Supply Voltage 5V
Base Part Number DS1643
Pin Count 34
JESD-30 Code R-XDMA-U34
Operating Supply Voltage 5V
Interface Parallel
Memory Size 8KB
Clock Frequency 0.032MHz
Logic Function Clock
External Data Bus Width 8
Time Format HH:MM:SS (24 hr)
Date Format YY-MM-DD-dd
Current - Timekeeping (Max) 3mA @ 5V
Compliance
Radiation Hardening No
RoHS Status ROHS3 Compliant
Alternative Model
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