Overview 1. Onboard serial RTC chip DS1302 a) 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 b) Optional format : 24-hour OR 12-hour with an AM/PM indicator c) Supports trickle-charge for the backup battery 2. Universal 32.768kHz crystal 3. Onboard battery holder 4. Features SPI interface, supports 3-wire and/or 4-wire sync serial communication
Specifications 1. Operating voltage: 2.0V ~ 5.5V 2. Backup battery voltage: 3.0V ~ 5.0V 3. Operating temperature: 0 degree C ~ +70 degree C 4. Power consumption: <1mW (keeping Clock and RAM data) 5. Dimension : 31mm * 15mm
Applications 1. Hand-held device 2. Electronic watch 3. Electronic clock
中文描述: 概述 1. 机载串行RTC芯片DS1302 a) 实时时钟计数秒、分、时、月、月、日、年,闰年补偿有效期至2100年 b) 可选格式:24小时或12小时,带AM/PM指示灯 c) 支持备用电池滴充 2. 通用32.768 khz的水晶 3. 板载电池座 4. 功能SPI接口,支持3线和/或4线同步串行通信