Trickle-Charge Timekeeping Chip

DS1302ZN+T&R 原装 实时时钟 的技术参数：

制造商	Maxim Integrated
产品种类	实时时钟
RoHS	是
安装风格	SMD/SMT
封装 / 箱体	SO-8
RTC 总线接口	Serial, 3-Wire
日期格式	YY-MM-DD
时间格式	HH:MM:SS
电池备用开关	Backup Switching
RTC 存储容量	31 B
电源电压	2 V to 5.5 V
工作温度	- 40 C to + 85 C
功能	Calendar, Clock, NV Timekeeping RAM, Trickle Charger
系列	DS1302ZN
工作电源电流	1.2 mA

 

The DS1302 trickle-charge timekeeping chip contains a real-time clock/calendar and 31 bytes of static RAM. It communicates with a microprocessor via a simple serial interface. The real-time clock/calendar provides seconds, minutes, hours, day, date, month, and year information.

 The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with an AM/PM indicator.

Interfacing the DS1302 with a microprocessor is simplified by using synchronous serial communication. Only three wires are required to communicate with the clock/RAM: CE, I/O (data line), and SCLK (serial clock).

 Data can be transferred to and from the clock/RAM 1 byte at a time or in a burst of up to 31 bytes. The DS1302 is designed to operate on very low power and retain data and clock information on less than 1μW.

 

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