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參數(shù)資料
| 型號(hào)： | RS5C321A |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | XO, clock |
| 英文描述： | ULTRA-COMPACT SERIAL REAL-TIME CLOCK ICs WITH 32.768kHz |
| 中文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封裝： | 0.65 MM PITCH, SSOP-8 |
| 文件頁數(shù)： | 5/33頁 |
| 文件大?。?/td> | 252K |
| 代理商： | RS5C321A |
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URTRA-COMPACT ALARM REAL-TIME
CLOCK ICs WITH 32.768kHz
1
RS5C321A/B
OUTLINE
The RS5C321A/B are CMOS type real-time clock ICs which are connected to the CPU via three signal lines and
capable of serial transmission of clock and calendar data to the CPU.
The RS5C321A/B can generate 32.768kHz clock pulse controled by register. Driving an oscillation circuit at con-
stant voltage, the circuit presents less fluctuations in frequency and current consumption thank to its minimal volt-
age fluctuations consequently realizes low current consumption (0.6μA at 3V). It also provides an oscillator halt
sensing function for application to data validity at power-on and other occasions. Integrated into an ultra compact
and ultra thin 8pin SSOP (0.65mm pitch), the RS5C321A/B are the optimum choice for equipment requiring small
size and low power consumption.
The RS5C321A and the RS5C321B reads/writes data at falling and rising edge of serial clock respectively.
Time keeping voltage 1.6V to 6.0V
Lowest supply current 0.6μA TYP. (1.5μA 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
32.768kHz clock pulse controled by register.
Oscillator halt sensing to judge internal data validity
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: 8pin SSOP (0.65mm pitch)
FEATURES
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RS5C321B | ULTRA-COMPACT SERIAL REAL-TIME CLOCK ICs WITH 32.768kHz |
| RS5C338A-E2 | DIODE ZENER SINGLE 500mW 2.4Vz 0.05mA-Izt 0.05 2uA-Ir 1 SOD-123 3K/REEL |
| RS5C338A | 3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
| RS5C348A-E2 | Real-Time Clock |
| RS5C348B-E2 | Real-Time Clock |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RS5C321A/B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:real-time clock ICs |
| RS5C321B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:ULTRA-COMPACT SERIAL REAL-TIME CLOCK ICs WITH 32.768kHz |
| RS5C338A | 制造商:RICOH 制造商全稱: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 制造商全稱:RICOH electronics devices division 功能描述:3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
| RS5C348A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:4-WIRE SERIAL INTERFACE |
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