74HC423D datasheet(3/14 Pages) PHILIPS

tên linh kiện	74HC423D

Giải thích chi tiết về linh kiện	Dual retriggerable monostable multivibrator with reset

PDF	14 Pages

Scroll/Zoom	100%

nhà sản xuất	PHILIPS [NXP Semiconductors]

Trang chủ	http://www.nxp.com

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3 / 14 page

1998 Jul 08

Philips Semiconductors

Product speciﬁcation

Dual retriggerable monostable

multivibrator with reset

74HC/HCT423

ORDERING INFORMATION

PIN DESCRIPTION

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

74HC423N;

74HCT423N

DIP16

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

SOT38-1

74HC423D;

74HCT423D

SO16

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

low stand-off height

SOT109-1

PIN NO.

SYMBOL

NAME AND FUNCTION

1, 9

1A, 2A

trigger inputs (negative-edge triggered)

2, 10

1B, 2B

trigger inputs (positive-edge triggered)

3, 11

1RD,2RD

direct reset action (active LOW)

4, 12

1Q, 2Q

outputs (active LOW)

72REXT/CEXT

external resistor/capacitor connection

GND

ground (0 V)

13, 5

1Q, 2Q

outputs (active HIGH)

14, 6

1CEXT,2CEXT

external capacitor connection

1REXT/CEXT

external resistor/capacitor connection

VCC

positive supply voltage

Fig.1 Pin configuration.

Fig.2

Fig.3 IEC logic symbol.

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