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參數(shù)資料
| 型號： | MSM6242BGS |
| 廠商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分類： | 時鐘/數(shù)據(jù)恢復(fù)及定時提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO24 |
| 封裝： | 0.430 INCH, PLASTIC, SOP-24 |
| 文件頁數(shù)： | 9/18頁 |
| 文件大?。?/td> | 177K |
| 代理商： | MSM6242BGS |
Semiconductor
MSM6242B
39
3. CH
1 (Chip Select)
V
IH and VIL of CH1 has 3 functions.
a)
To accomplish the interface with a microcontroller/microprocessor.
b)
To inhibit the control bus, data bus and address bus and to reduce input gate pass
current in the stand-by mode.
c)
To protect internal data when the mode is moved to and from standby mode.
To realize the above functions:
a)
More than 4/5 V
DD shoud be applied to the MSM6242B for the interface with a
microcontroller/microprocessor in 5V operation.
b)
In moving to the standby mode, 1/5 V
DD should be applied so that all data buses should
be disabled. In the standby mode, approx. 0V should be applied.
c)
To and from the standby mode, obey following Timing chart.
To Standby Mode
VDD
CS1
From Standby Mode
4 ~ 6V
2 ~ 4V
4V
2s (MIN)
VDD
2
5
2s (MIN)
VDD
1
5
VDD
4
5
CS0 : H
or WR : H
YES
NO
4. Set SDT.P at alarm mode
Set alarm at 9:00
Read Register CD
D2 = 1?
AM 9:00?
Read H10 and
H10 Cotent
MASK BIT ← 0
ITRPT/STND BIT ← 1
t1, t0 ← 1
Start interruption
CPU Activation
CPU HALT
or
CPU STAND BY
Repeat
YES
NO
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSM6242BGS-K | 制造商:ROHM Semiconductor 功能描述: |
| MSM6242BGS-KR1 | 制造商:ROHM Semiconductor 功能描述: |
| MSM6242BRS | 制造商:ROHM Semiconductor 功能描述: 制造商:OK International 功能描述: |
| MSM6242BRS-7 | 制造商:ROHM Semiconductor 功能描述:Directly connected to the bus real-time clock |
| MSM6250 | 制造商:QUALCOMM 制造商全稱:QUALCOMM 功能描述:CHIPSET SOLUTION |
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