74HC4538 データシートの表示（PDF） - ON Semiconductor

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74HC4538

Dual Precision Monostable Multivibrator (Retriggerable, Resettable)

ON Semiconductor 

MC74HC4538A

TRIGGER

INPUTS

A1 4

B1 5

CX1

RX1

VCC

12

6 Q1

7 Q1

RESET 1 3

TRIGGER

INPUTS

A2 12

B2 11

CX2

RX2

VCC

15 14

10 Q2

9 Q2

PIN 16 = VCC

PIN 8 = GND

RESET 2 13

RX AND CX ARE EXTERNAL COMPONENTS

PIN 1 AND PIN 15 MUST BE HARD WIRED TO GND

Figure 2. Logic Diagram

FUNCTION TABLE

Inputs

Reset A

B

H

H

H

L

H

X

L

H

H

X

H L,H,

H

H

L

L,H,

L

X

X

X

X

Outputs

Q

Q

Not Triggered

Not Triggered

Not Triggered

Not Triggered

L

H

Not Triggered

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