M74HC4538(2008) データシートの表示（PDF） - STMicroelectronics

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M74HC4538
(Rev.:2008)

Dual retriggerable monostable multivibrator

STMicroelectronics 

M74HC4538

Pin connection and IEC logic symbols

Figure 2. Input and output equivalent circuit

VCC

VCC

Input

Output

GND GND

Table 3.

Truth table

Inputs

A

B

CD

H

H

X

L

H

H

X

H

L

H

X

X

L

Figure 3. System diagram

Outputs

Q

Q

L

H

L

H

L

H

Note

Output enable

Inhibit

Inhibit

Output enable

Inhibit

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