- 您现在的位置：买卖IC网 > PDF目录69323 > RV5C387A-F (RICOH COMPANY LTD) 0 TIMER(S), REAL TIME CLOCK, PDSO10 PDF资料下载
参数资料
| 型号： | RV5C387A-F |
| 厂商： | RICOH COMPANY LTD |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO10 |
| 封装： | 4 X 2.90 MM, 1.20 MM HEIGHT, SSOP-10 |
| 文件页数： | 1/49页 |
| 文件大小： | 330K |
| 代理商： | RV5C387A-F |
当前第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页
1
I
2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
WITH VOLTAGE MONITORING FUNCTION
RV5C387A
OUTLINE
The RV5C387A is a CMOS real-time clock IC connected to the CPU by two signal, SCL and SDA, and configured to
perform serial transmission of time and calendar data to the CPU. 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 circuits
generate interrupt signals at preset times. The oscillation circuit is driven under constant voltage so that fluctuations
in oscillation frequency due to voltage are small and supply current is also small (TYP. 0.35A for the RV5C387A at
3 volts). 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 (Nch. open drain) is
intended to output sub-clock pulses for the external microcomputer. The oscillation adjustment circuit is intended
to adjust time counts with high precision by correcting deviations in the oscillation frequency of the crystal
oscillator. The 32-kHz clock circuit can be disabled by certain register settings. This model comes in an ultra-
compact 10-pin SSOP-G (with a height of 1.20mm and a pin pitch of 0.5mm).
FEATURES
Timekeeping supply voltage ranging from 1.45 to 5.5 volts
Low supply current: TYP. 0.35A (MAX. 0.8A) at 3 volts
Only two signal lines (SCL, SDA) required for connection to the CPU.
(I
2C bus compatible, 400kHz at VDD
≥2.5V, address 7bits)
Time counters (counting hours, minutes, and seconds) and calendar counters (counting years, months, days,
and weeks) (in BCD format)
1900/2000 identification bit for Year 2000 compliance
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 circuit
2 alarm circuits (Alarm_W for week, hour, and minute alarm settings and Alarm_D for hour and minute
alarm settings)
32-kHz clock circuit (Nch. open drain output)
Oscillation halt sensing circuit which can be used 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
Built-in oscillation stabilization capacitors (CG and CD)
High precision oscillation adjustment circuit
CMOS process
Ultra-compact 10-pin SSOP-G(with a height of 1.20mm and size 4.0mm
×2.9mm)
NO.EA-080-0208
相关PDF资料 |
PDF描述 |
|---|---|
| RX-4571LC | REAL TIME CLOCK, PDSO12 |
| RX-4571SA | REAL TIME CLOCK, PDSO14 |
| RX-4571SA | 0 TIMER(S), REAL TIME CLOCK, PDSO14 |
| RX-4574SG | 0 TIMER(S), REAL TIME CLOCK, PDSO16 |
| RX-4591CF | 0 TIMER(S), REAL TIME CLOCK, PDSO10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| RV5LAYSB102A | 制造商: 功能描述: 制造商:undefined 功能描述: |
| RV5LAYSB254A | 制造商: 功能描述: 制造商:undefined 功能描述: |
| RV5LAYSD501A | 制造商:n/a 功能描述:RV5LAYSD501 |
| RV5MJKSME-S1 | 功能描述:REVCONN CAT5E JACK METAL 制造商:belden inc. 系列:- 零件状态:在售 样式:模块 外部类型（适配器端）:模块插孔 8p8c（RJ45 以太网） 内部类型（适配器端）:模块插孔 8p8c（RJ45 以太网） 外部壳体材料:- 内部壳体材料:- 外部壳体颜色:灰色 内部壳体颜色:白色 外部触头材料:覆铜 内部触头材料:铜合金 外部触头镀层:金 内部触头镀层:金 工作温度:-10°C ~ 60°C 等级:Cat5e 规格:1G Base-T 特性:屏蔽 外部触头镀层厚度:50μin（1.27μm） 内部触头镀层后的:- 标准包装:1 |
| RV5MJKUBK-S1 | 功能描述:REVCONN CAT5E JACK BLACK 制造商:belden inc. 系列:- 零件状态:在售 样式:模块 外部类型（适配器端）:模块插孔 8p8c（RJ45 以太网） 内部类型（适配器端）:模块插孔 8p8c（RJ45 以太网） 外部壳体材料:- 内部壳体材料:- 外部壳体颜色:黑色 内部壳体颜色:黑色 外部触头材料:覆铜 内部触头材料:铜合金 外部触头镀层:金 内部触头镀层:金 工作温度:-10°C ~ 60°C 等级:Cat5e 规格:1G Base-T 特性:- 外部触头镀层厚度:50μin（1.27μm） 内部触头镀层后的:- 标准包装:1 |
发布紧急采购，3分钟左右您将得到回复。