74HCSLASHHCT4538 datasheet(9/13 Pages) PHILIPS

부품명	74HC/HCT4538

상세설명	Dual retriggerable precision monostable multivibrator

PDF	13 Pages

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제조업체	PHILIPS [NXP Semiconductors]

홈페이지	http://www.nxp.com

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9 / 13 page

September 1993

Philips Semiconductors

Product speciﬁcation

Dual retriggerable precision monostable

multivibrator

74HC/HCT4538

NON-STANDARD DC CHARACTERISTICS FOR 74HCT

Voltages are referenced to GND (ground = 0 V)

Note

1. This measurement can only be carried out after a trigger pulse is applied.

AC WAVEFORMS

SYMBOL

PARAMETER

Tamb (°C)

UNIT

TEST CONDITIONS

74HCT

VCC

(V)

OTHER

+25

−40 to +85 −40 to +125

min. typ max. min. max. min.

max.

±II

input leakage current

nRCEXT

0.5

5.0

10.0

µA

5.5

2.0

GND

VCC or GND;

note 1

Fig.8

Waveforms showing the input (nA1,nA0,nRD) to output (nQ, nQ) propagation delays, the output transition

times, the input and output pulse widths, the removal time from direct reset (nRD) to input (nA1,nA0), and

the input retrigger time.

(1) HC : VM = 50%; VI = GND to VCC.

HCT: VM = 1.3 V; VI = GND to 3 V.

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