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GM1302

Description
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CategoryAnalog mixed-signal IC    Real time clock chip   
File Size397KB,10 Pages
ManufacturerGATEMODE
Websitehttp://www.gmmicro.com/
Hangzhou Jiemao Microelectronics Co., Ltd. was established in Zhejiang University Science Park in February 2012. In the same year, it was selected as a "Qinglan Plan" enterprise in Hangzhou, a technology-based small and medium-sized enterprise in 2013, a high-tech enterprise in Hangzhou in 2014, and a national high-tech enterprise in 2019. Hangzhou Jiemao Microelectronics was co-founded by a number of alumni of Huazhong University of Science and Technology. The main design team is composed of overseas returnees and microelectronics doctors and masters. The company's R&D headquarters is located in Wuhan, and Hangzhou is an operation and sales company. The company mainly focuses on the design and sales of analog and mixed-signal integrated circuit products. The products mainly involve communication interfaces, real-time clocks, power supplies and other fields. In particular, it has a deep technical foundation in high voltage and high power, high-precision clocks and high-voltage ESD protection.
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31
字节非易失性静态
RAM
的串行实时时钟
GM1302
特 点
可对秒,分,时,日,周,月以及带闰年补偿
的年进行计数
用于高速数据暂存的
31
字节非易失性
RAM
½工½电源电压范围:2.0V½5.5V
2.5V
时耗电小于
300nA
用于时钟或
RAM
数据读/写的单字节或多字节
数据传送方式
简单的
3
线接口与单片机通信
TTL
兼容(V
CC
=5V)
可选的工业温度范围-40℃至+85℃
封装½式:DIP8 和
SOP8
应 用
便携仪器
移动电话
复费率电度表、IC 卡水表、IC 卡煤气表
传真机
概述
GM1302
可慢速充电实时时钟芯片包含实时时钟/日历和
31
字节的非易失性静态
RAM。
它经过一个简
单的串行接口与微处理器通信。实时时钟/日历可对秒,分,时,日,周,月,和年进行计数,对于小于
31
天的月,月末的日期自动进行调整,还具有闰年校正的功½。时钟可以采用
24
小时格式或带
AM(上
午)/PM(下午)的
12
小时格式。31 字节的
RAM
可以用来临时保存一些重要数据。½用同步串行通信,
简化了
GM1302
与微处理器的通信。与时钟/RAM 通信仅需
3
根线:
(1)RST(复½)(2)I/O(数据线)
和(3)SCLK(串行时钟)
。数据可以以每次一个字节的单字节½式或多达
31
字节的多字节½式传输。
GM1302
½在非常½的功耗下工½,消耗小于
1µW
的功率便½保存数据和时钟信息。
定购信息
器件
GM1302EDA
GM1302ESA
工½温度范围
-40℃½+85℃
封装类型
DIP8
SOP8
杭州捷茂微电子有限公司
½址:http://www.gmmicro.com
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