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MB3773
5
RESET
VCC
VSH
VSL
0.8 V
CK
C
T
TCK
TPR
TWD
TWR TPR
(1) (2) (3)(4)(5) (5) (6)(7) (8)(9) (10) (11) (12)
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MB3773 Basic Operation
VCC
RESET
RESET
CK
Logic Circuit
TPR (ms) := 1000 · CT (µF)
T
WD (ms) := 100 · CT (µF)
T
WR (ms) := 20 · CT (µF)
Example : C
T = 0.1 µF
T
RR (ms) := 100 (ms)
T
WD (ms) := 10 (ms)
T
WR (ms) := 2 (ms)
RESET
RESET
CK
GND
C
T
VCC