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DS1302 Trickle Charge Timekeeping Chip Datasheet

Photograph
DS1302 - Trickle Charge Timekeeping Chip

Features
  • Real Time Clock - Valid up to 2100
  • 31 x 8 Scratchpad RAM
  • 2.0 - 5.5V Operation
  • Low Operating Current - Less than 300nA @ 2.0V
  • Simple 3-wire Interface
  • DS1202 Compatible
  • TTL 5.0V Compatible

Pin Layout
DS1302 Dallas Semiconductor IC Pin Layout

Pin Description
Pin Number Description
1 Vcc2 - Power Supply Pin
2 X1 - 32.768kHz Crystal Input
3 X2 - 32.768kHz Crystal Input
4 GND - Ground
5 RST - Reset
6 I/O - Date Input/Output
7 SCLK - Serial Clock
8 Vcc1 - Power Supply Pin

Dimensional Drawing
DS1302 DIP8 Dimension Drawing
DS1302 DIP8 Dimension Drawing