HD74HC4538 Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HD74HC4538

Dual Precision Retriggerable/Resettable Monostable Multivibrators

Hitachi -> Renesas Electronics 

VCC

RX

2, 14

T2

CX

VCC

M2

M1

2kΩ

M3

4, 12

A

B

5, 11

S1

VCC

M4

Trigger-Control Circuit

CQ

CR

Upper Reference

Circuit

+

–

Vref Upper

Lower Reference

Circuit

+

–

Vref Lower

Output Latch

Trigger-Control

Reset Circuit

3, 13

CD

HD74HC4538

6, 10

Q

7, 9

Q

Reset Latch

Fig. 1 Function Diagram

9

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