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参数资料
| 型号： | RS5C317B-E1 |
| 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, PDSO14 |
| 封装： | 0.65 MM PITCH, SSOP-14 |
| 文件页数： | 36/40页 |
| 文件大小： | 347K |
| 代理商： | RS5C317B-E1 |
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ULTRA-COMPACT HIGH PERFORMANCE
SERIAL REAL TIME CLOCK
1
RS5C317A/B
OUTLINE
The RS5C317A/B is a CMOS type real-time clock which is connected to the CPU via three signal lines and capa-
ble of serial transmission of clock and calendar data to the CPU.
The RS5C317A/B can generate various periodic interrupt clock pulses lasting for long period (one month), further
alarm interrupt can be made by days of the week, hours, and minutes. The function of 32kHz clock output and timer
counter for watch-dog-timer are also include. Driving an oscillation circuit at constant voltage, the circuit undergoes
few voltage fluctuations and consequently realizes low current consumption (0.6A at 3V). It also provides an oscil-
lator halt sensing function for application to data validity at power-on and other occasions. Integrated into a compact
and thin 14pin SSOP (0.65mm pitch), the RS5C317A/B is the optimum choice for equipment requiring small size
and low power consumption.
The RS5C317A and the RS5C317B reads/writes data at falling and rising edge of serial clock respectively.
Time keeping voltage 1.6V to 6.0V
Lowest supply current 0.6A TYP. (1.5A MAX.) at 3V
Connection to the CPU via only three pins: CE, SCLK/SCLK and SIO for addressing and data read/write
A clock counter (counting hours, minutes, and seconds) and a calendar counter (counting leap years, years,
months, days, and days of the week) in BCD code
Periodic interrupt pulses to the CPU with cycles ranging from one month to 1/1024Hz, with interrupt flags and
interrupt halt
Alarm interrupt (days of the week, hours, minutes)
Counter for timer with internal clock
Oscillator halt sensing to judge internal data validity
32kHz clock output with enable switch
Second digit adjustment by ±30 seconds
12-hour or 24-hour time display selectable
Automatic leap year recognition up to the year 2099
CMOS logic
Package: 14pin SSOP (0.65mm pitch)
FEATURES
相关PDF资料 |
PDF描述 |
|---|---|
| RS5C317B-E2 | 0 TIMER(S), REAL TIME CLOCK, PDSO14 |
| RS5C321A-E1 | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| RS5C321B-E1 | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| RS5C321B-E2 | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| RS5C372A-E2 | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| RS5C321A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:ULTRA-COMPACT SERIAL REAL-TIME CLOCK ICs WITH 32.768kHz |
| RS5C321A/B | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:real-time clock ICs |
| RS5C321B | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:ULTRA-COMPACT SERIAL REAL-TIME CLOCK ICs WITH 32.768kHz |
| RS5C338A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
| RS5C338A-E2 | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
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