产品信息: 电子元器件 | 推荐型号 | 新进货源 | 最近更新库存 | 历史排行榜 | 本月排行榜 | 本周热门型号 | 相关图片浏览
全部分类 > 电子元器件
超过百万家电维修资料以及家电维修论坛13年文件数据 免费开放下载
资料名称或型号:
搜索分类:
电路图纸 IC规格书 I2C总线资料 存储器数据文件 电子书籍 书报目录 其他..

R2025S IC产品库存

R2025S:代理/全新原装
库存编号:
47692
产品型号:
R2025S
厂商:
RICOH
封装:
SOP-14
库存数量:
20000
参考价:
11.00
起订量:
1000
点击率:
2735
PDF搜索:
下载
立即订购:
R2025S
联系电话:
0755-82516777

R2025S 产品描述

代理/全新原装

R2025S 产品简介

The R2025S/D is a real-time clock module, built in CMOS real-time clock IC and crystal oscillator, connected to
the CPU by two signal lines, SCL and SDA, and configured to perform serial transmission of time and calendar
data to the CPU. The oscillation frequency is adjusted to high precision (05ppm: 15sec. per month at 25C) The
periodic interrupt circuit is configured to generate interrupt signals with six selectable interrupts ranging from 0.5
seconds to 1 month. The 2 alarm interrupt circuits generate interrupt signals at preset times. As the oscillation
circuit is driven under constant voltage, fluctuation of the oscillator frequency due to supply voltage is small, and
the time keeping current is small (TYP. 0.48A at 3V). The oscillation halt sensing circuit can be used to judge the
validity of internal data in such events as power-on; The supply voltage monitoring circuit is configured to record a
drop in supply voltage below two selectable supply voltage monitoring threshold settings. The 32-kHz clock output
function (CMOS output) is intended to output sub-clock pulses for the external microcomputer. The oscillation
adjustment circuit is intended to adjust time by correcting deviations in the oscillation frequency of the crystal
oscillator.
FEATURES Built in 32.768kHz crystal unit, The oscillation frequency is adjusted to high precision (05ppm: at 25C) Time keeping voltage 1.15V to 5.5V Super low power consumption 0.48A TYP (1.2A MAX) at VDD=3V I2C-Bus interface (Maximum serial clock frequency: 400KHz at VDD1.7V) Time counters (counting hours, minutes, and seconds) and calendar counters (counting years, months, days,
and weeks) (in BCD format) Interrupt circuit configured to generate interrupt signals (with interrupts ranging from 0.5 seconds to 1 month) to
the CPU and provided with an interrupt flag and an interrupt halt 2 alarm interrupt circuits (Alarm_W for week, hour, and minute alarm settings and Alarm_D for hour and minute
alarm settings) 32768Hz Clock CMOS push-pull output with control pin With Power-on flag to prove that the power supply starts from 0V With Oscillation halt sensing Flag to judge the validity of internal data Supply voltage monitoring circuit with two supply voltage monitoring threshold settings Automatic identification of leap years up to the year 2099 Selectable 12-hour and 24-hour mode settings Oscillation adjustment circuit for correcting temperature frequency deviation or offset deviation CMOS process Two types of package, SOP14(10.1x7.4x3.1) or SON22(6.1x5.0x1.3)>

R2025S 产品图片

R2025S 相关库存

型号 厂商 封装 描述 资料 采购
R2025S RICOH SOP-14 代理/全新原装


R2025S 相关产品资料

暂无相关信息



R2025S 论坛相关



联系方式

联系时间:每周一至周五
   上午9.00至11:45,
   下午13:30至17.50
联系电话:
   0755-82516668,82516777
联系传真:
   0755-82516669
业务联系QQ:
   QQ一:882222 ,QQ二:308917
点这里询问产品价格

QQ:308917
IC库存速查:- 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
IC资料速查:- 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

---广告---