參數(shù)資料
型號: MSM6542-03RS
廠商: OKI ELECTRIC INDUSTRY CO LTD
元件分類: 時鐘/數(shù)據恢復及定時提取
英文描述: 0 TIMER(S), REAL TIME CLOCK, PDIP24
封裝: 0.600 INCH, PLASTIC, DIP-24
文件頁數(shù): 32/54頁
文件大小: 406K
代理商: MSM6542-03RS
Semiconductor
MSM6542-01/02/03
105
When a system is implemented with DP = 1:
Switching to the standby mode
Existing from the standby mode
POWER OFF
* 2
2 V or more
4 ~ 6V
4 ~ 4.5V
Main power
supply
(4 ~ 4.5V)
CS1
4
5 VDD
1
5 VDD
a
*1
0V
b
*1, *2:
The duration in this interval must be 8.7 ms or less.
Through current at the input stage (A
0 ~ A3, D0 ~ D3, control inputs) caused by intermediate voltage
input level and bus charge current cuaused by not programmed read out operation of CPU will
dissipate power source.
Therefore, it is recommended that the voltage for monitoring the power supply of the CS1 control
system be higher than the main power supply/battery switching voltage so that battery backup is
enabled only in the interval from a .. to b .. .
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