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参数资料
| 型号： | RS5C372A-E2 |
| 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, PDSO8 |
| 封装： | 0.65 MM PITCH, SSOP-8 |
| 文件页数： | 43/59页 |
| 文件大小： | 442K |
| 代理商： | RS5C372A-E2 |
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RS5C372A/B
44
2) Level mode : One second, one minute or one month may be selected for an interrupt cycle. Counting up of sec-
onds is matched with falling edge of interrupt output.
3) When the time trimming circuit is used, periodic interrupt cycle changes every 20 seconds.
Pulse mode : “L” duration of output pulses may change in the maximum range of ±3.784ms (±3.875ms when
32.000kHz crystal is used.)
For example, Duty will be 50±0.3784% (or 50±0.3875% when 32.000kHz crystal is used) at 1Hz.
Level mode : Frequency in one second may change in the maximum range of ±3.784ms (±3.875ms when
32.000kHz crystal is used.)
Relation Between Mode Waveforms and CTFG Bit
Pulse mode
Approx. 92
s (32.768kHz crystal is used)
Approx. 94
s (32.000kHz crystal is used)
CTFG bit
(Counting up of seconds)
INTRA or INTRB pins
(INTR pin for the RS5C372B)
*) Since counting up of seconds and the falling edge has a time lag of approx. 92s (at 32.768kHz) (approx. 94s when 32.000kHz crystal is used), a
time may be read with apparently approx. one second delayed from time of the real-time clock when time is read in synchronization with the falling
edge of output.
Level mode
Write 0 to CTFG
(Second count-up)
Write 0 to CTFG
CTFG bit
(Second count-up)
INTRA or INTRB pins
(INTR pin for the RS5C372B)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| RS5C372B | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C372B-E1 | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C372B-E2 | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C373A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Real-Time Clock |
| RS5C4FC | 制造商:Dialight 功能描述: |
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