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參數(shù)資料
| 型號： | RV5C387A |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | XO, clock |
| 英文描述： | I2C-bus Real-Time Clock ICs with Voltage Monitoring Function |
| 中文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO10 |
| 封裝： | 4 X 2.90 MM, 1.20 MM HEIGHT, SSOP-10 |
| 文件頁數(shù)： | 8/42頁 |
| 文件大小： | 363K |
| 代理商： | RV5C387A |
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RV5C387A PRELIMINARY
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(6) Periodic Interrupt Function
The RV5C387A incorporates the periodic interrupt circuit configured to generate periodic interrupt signals
aside from interrupt signals generated by the alarm interrupt circuit for output from the /INTRA pin. Periodic
interrupt signals have five selectable frequency settings of 2 Hz (once per 0.5 seconds), 1 Hz (once per 1
second), 1/60 Hz (once per 1 minute), 1/3600 Hz (once per 1 hour), and monthly (the first day of every month).
Further, periodic interrupt signals also have two selectable waveforms, a normal pulse form (with a frequency
of 2 Hz or 1 Hz) and special form adapted to interruption from the CPU in the level mode (with second,
minute, hour, and month interrupts). The condition of periodic interrupt signals can be monitored by using a
polling function.
(7) 32kHz Clock Output
The RV5C387A incorporates a 32-kHz clock circuit configured to generate clock pulses with the oscillation
frequency of a 32.768kHz crystal oscillator for output from the 32KOUT pin (Nch open drain output). The
32-kHz clock output can be disabled by certain register settings but cannot be disabled without manipulation
of any two registers with different addresses to prevent disabling in such events as the runaway of the CPU.
The 32KOUT pin is enabled at power-on from 0 volts.
相關PDF資料 |
PDF描述 |
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| RV5C387A-E2 | I2C-bus Real-Time Clock ICs with Voltage Monitoring Function |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| RV5C387A_03 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC WITH VOLTAGE MONITORING FUNCTION |
| RV5C387AE2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Industrial Control IC |
| RV5C387A-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:I2C-bus Real-Time Clock ICs with Voltage Monitoring Function |
| 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: |
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