74HCT423 查看數據表（PDF） - Philips Electronics

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74HCT423

Dual retriggerable monostable multivibrator with reset

Philips Electronics 

Philips Semiconductors

Dual retriggerable monostable

multivibrator with reset

Product specification

74HC/HCT423

ORDERING INFORMATION

TYPE

NUMBER

74HC423N;

74HCT423N

74HC423D;

74HCT423D

NAME

DIP16

SO16

PACKAGE

DESCRIPTION

plastic dual in-line package; 16 leads (300 mil); long body

plastic small outline package; 16 leads; body width 3.9 mm;

low stand-off height

PIN DESCRIPTION

PIN NO.

1, 9

2, 10

3, 11

4, 12

7

8

13, 5

14, 6

15

16

SYMBOL

1A, 2A

1B, 2B

1RD, 2RD

1Q, 2Q

2REXT/CEXT

GND

1Q, 2Q

1CEXT, 2CEXT

1REXT/CEXT

VCC

NAME AND FUNCTION

trigger inputs (negative-edge triggered)

trigger inputs (positive-edge triggered)

direct reset action (active LOW)

outputs (active LOW)

external resistor/capacitor connection

ground (0 V)

outputs (active HIGH)

external capacitor connection

external resistor/capacitor connection

positive supply voltage

VERSION

SOT38-1

SOT109-1

Fig.1 Pin configuration.

1998 Jul 08

Fig.2

3

Fig.3 IEC logic symbol.

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