MSM81C55-5JS View Datasheet(PDF) - Oki Electric Industry
Part Name
Description
MFG CO.
'MSM81C55-5JS' PDF : 19 Pages View PDF
¡ Semiconductor
Timer Waveforms 2
WR
TIMER IN
MSM81C55-5RS/GS/JS
Timer - Start
tTW
tWT
RAM DATA HOLD CHARACTERISTICS AT LOW SUPPLY VOLTAGE
Item
Data Holding Supply Voltage
Data Holding Supply Current
Setup Time
Hold Time
Symbol
VCCH
ICCH
tSU
tR
Condition
VIN = 0 V or VCC, ALE = 0 V
VCC = VCCH, ALE = 0
VIN = 0 V or VCC
Specification
Unit
Min. Typ. Max.
2.0
—
—V
—
0.05
20 mA
30
—
— ns
20
—
— ns
Two ways to place device in standby mode:
(1) Method using CE
5V
VCC
4.5 V
tSU
Standby Mode
tR
VCCH
tLA
ALE
0.8 V
0V
tAL
2.2 V
CE
VCCH
8/19
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