MB89160/160A Series
4. AC Characteristics
(1) Reset Timing
(VCC = +5.0 V ±10 %, VSS = 0.0 V, TA = –40°C to +85°C)
Value
Parameter
Symbol
Condition
Unit
Remarks
Min.
Max.
—
RST “L” pulse width
RST “H” pulse width
tZLZH
tZHZL
48 tXCYL
24 tXCYL
ns
ns
—
—
tZLZH
tZHZL
R S T
0.8 VCC
0.2 VCC
0.2 VCC
0.2 VCC
(2) Power-on Reset
Parameter
(VSS = 0.0 V, TA = –40°C to +85°C)
Value
Symbol
Condition
Unit
Remarks
Min.
Max.
Power-on reset
function only
Power supply rising time
Power supply cut-off time
tR
—
—
—
50
ms
ms
Due to repeated
operations
tOFF
1
—
Note: Make sure that power supply rises within the selected oscillation stabilization time. If power supply voltage
needs to be varied in the course of operation, a smooth voltage rise is recommended.
tR
tOFF
2.0 V
0.2 V
0.2 V
0.2 V
V
CC
36
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