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参数资料
| 型号： | RV5C339 |
| 厂商： | Ricoh Co., Ltd. |
| 英文描述： | 3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
| 中文描述： | 3线串行接口实时时钟IC，带有电压检测功能 |
| 文件页数： | 35/51页 |
| 文件大小： | 421K |
| 代理商： | RV5C339 |
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37
RV5C339A
Approx. 92
s
CTFG bit
INTRA pin
(Increment of second counter)
Rewriting of the second counter
Relation Between the Mode Waveform and the CTFG Bit
Pulse mode
*) In the pulse mode, the increment of the second counter is delayed by approximately 92 s from the falling edge of clock pulses. Consequently, time
readings immediately after the falling edge of clock pulses may appear to lag behind the time counts of the real-time clocks by approximately 1 second.
Rewriting the second counter will reset the other time counters of less than 1 second, driving the INTRA pin low.
Setting CTFG bit to 0
(Increment of
second counter)
Setting CTFG bit to 0
CTFG bit
INTRA pin
(Increment of
second counter)
(Increment of
second counter)
5. 32-kHz Clock Output
32.768-kHz clock pulses are output from the 32KOUT pin when either the CLEN1 bit in the control register 2 or the
CLEN2 bit in the control register 1 is set to 0. If the conditions described above are not satisfied, the output is set to
high.
CLEN1
CLEN2
32KOUT pin output
(D3 at Address Fh)
(D4 at Address Eh)
(Nch Open Drain output)
1
Off (“H”)
0 (Default)
*
Clock pulses
*
0 (Default)
The 32KOUT pin output is synchronized with the CLEN1 or CLEN2 bit, settings as illustrated in the timing chart
below.
MAX. 61.0
s
MAX. 45.8
s
32KOUT pin
CLEN1 or CLEN2
Level mode
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相关代理商/技术参数 |
参数描述 |
|---|---|
| RV5C339A | 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 |
| RV5C339A_03 | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:3-WIRE SERIAL INTERFACE REAL-TIME CLOCK IC WITH VOLTAGE MONITORING FUNCTION |
| RV5C339A-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 |
| RV5C348A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:4-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
| RV5C348B | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:4-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
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