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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： | 10/59页 |
| 文件大小： | 442K |
| 代理商： | RS5C372A-E2 |
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RS5C372A/B
14
For those systems that have temperature detection precision of clock function may be increased by correcting
clock error according to temperature fluctuations.
5. Oscillation halt sensing
The oscillation halt sensing function uses a register to store oscillation halt information. This function may be used
to determine if the RS5C372A/B supply power has been booted from 0V and if it has been backed up. This function
is useful for determining if clock data is valid or invalid.
6. Periodic interrupt
˙ RS5C372A
The RS5C372A can output periodic interrupt pulses in addition to alarm function from the INTRA and INTRB pins.
This frequency may be selected from 2Hz (every 0.5 seconds), 1Hz (every second), 1/60Hz (every minute),
1/3600Hz (every hour) and monthly (1st of month).
Output wave form for periodic interrupt may be selected from regular pulse waveform (2Hz and 1Hz) and wave-
forms (every second, every minute, every hour and every month) that are appropriate for CPU level interrupt. Out-
puts may be selected either INTRA or INTRB. The RS5C372A/B has polling function that monitors pin status in the
register.
˙ RS5C372B
The RS5C372B can output periodic interrupt pulses in addition to alarm function from the INTR pin. This frequency
may be selected from 2Hz (every 0.5 seconds), 1Hz (every second), 1/60Hz (every minute), 1/3600Hz (every hour)
and monthly (1st of month).
Output wave form for periodic interrupt may be selected from regular pulse waveform (2Hz and 1Hz) and wave-
forms (every second, every minute, every hour and every month) that are appropriate for CPU level interrupt. Peri-
odic Interrupt outputs from INTR. The RS5C372B has polling function that monitors pin status in the register.
7. 32-kHz clock output
˙ RS5C372A
The RS5C372A may output oscillation frequency from the INTRB pin. This clock output is set for output by default,
which is set to on or off by setting the register.
˙ RS5C372B
The RS5C372B may output oscillation frequency from the 32KOUT pin. This clock output is set for output by
default, which is set to on or off by setting the register. The 32KOUT pin is CMOS push-pull output terminal.
Note
The year-digit counter of RS5C372A/B counts only lower two digits of a year and no counter is supplied for upper two
digits. When you are going to use this product in a system that must cope with “2000 year problem” which shall be
corrected by software.
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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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