ماژول ساعت DS1302

Description
The DS1302 is a Real Time Clock Module and has an SPI interface through which the time can be determined.
Features
Supply voltage: 3.3V – 5V DC
Operating current: <1.5mA
Standby current: <200nA
Clock accuracy: ±2ppm (at 25°C)
Time format: 24-hour or 12-hour with AM/PM indicator
Time resolution: 1 second
Backup power: CR2032 button cell (not included)
Communication interface: SPI or 3-wire interface (CE, IO, SCLK)
Operating temperature: -40°C to +85°C
Dimensions: typically around 42.7mm x 22.4mm x 11.5mm

NOTE: Doesn’t include battery.