Trickle-Charge Timekeeping Chip
DS1302 Trickle-Charge Timekeeping Chip
BENEFITS AND FEATURES
Completely Manages All Timekeeping Functions o Real-Time...
Description
DS1302 Trickle-Charge Timekeeping Chip
BENEFITS AND FEATURES
Completely Manages All Timekeeping Functions o Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100 o 31 x 8 Battery-Backed General-Purpose RAM
Simple Serial Port Interfaces to Most Microcontrollers o Simple 3-Wire Interface o TTL-Compatible (VCC = 5V) o Single-Byte or Multiple-Byte (Burst Mode) Data Transfer for Read or Write of Clock or RAM Data
Low Power Operation Extends Battery Backup Run Time o 2.0V to 5.5V Full Operation o Uses Less Than 300nA at 2.0V
8-Pin DIP and 8-Pin SO Minimizes Required Space
Optional Industrial Temperature Range: -40°C to +85°C Supports Operation in a Wide Range of Applications
Underwriters Laboratories® (UL) Recognized
PIN CONFIGURATIONS
DS1302
TOP VIEW
VCC2 X1 X2
GND
1 2 3 4
8 VCC1 7 SCLK 6 I/O 5 CE
DIP (300mils)
VCC2 X1 X2
GND
1 2 3 4
DS1302
8 VCC1 7 SCLK 6 I/O 5 ...
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