DS1302 Real-Time Clock Module

A DS1302 real-time clock module with battery backup – a budget way to keep time for clocks, timers and loggers.

Specifications

• Chip: DS1302
• Supply: 3.3V / 5V
• Interface: 3-wire serial (CLK, DAT, RST)
• Operating temperature: −40 to +85°C
• Coin-cell holder for backup