Fujitsu MB3773 User Manual download pdf (Page 5)

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

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