74HCSLASHHCT4538 datasheet(7/13 Pages) PHILIPS

tên linh kiện	74HC/HCT4538

Giải thích chi tiết về linh kiện	Dual retriggerable precision monostable multivibrator

PDF	13 Pages

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nhà sản xuất	PHILIPS [NXP Semiconductors]

Trang chủ	http://www.nxp.com

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7 / 13 page

September 1993

Philips Semiconductors

Product speciﬁcation

Dual retriggerable precision monostable

multivibrator

74HC/HCT4538

NON-STANDARD DC CHARACTERISTICS FOR 74HC

Voltages are referenced to GND (ground = 0 V)

Note

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

trt

retrigger time

nA0,nA1

−

455+X

80+X

55+X

−

2.0

4.5

6.0

Fig.8

X=CEXT /

(4.5

× VCC)

REXT

external timing

resistor

1000

Ω

2.0

5.0

CEXT

external timing

capacitor

no limits

5.0

SYMBOL

PARAMETER

Tamb (°C)

UNIT

TEST CONDITIONS

74HC

VCC

(V)

OTHER

+25

−40 to +85 −40 to +125

min. typ max. min. max. min.

max.

±I

input leakage current

nRCEXT

0.5

5.0

10.0

µA

6.0

2.0

GND

VCC or GND;

note 1

SYMBOL

PARAMETER

Tamb (°C)

UNIT

TEST CONDITIONS

74HC

VCC

(V)

OTHER

+25

−40 to +85

−40 to +125

min.

typ.

max.

min.

max.

min.

max.

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