74AHC123 datasheet(8/24 Pages) PHILIPS

No. de pieza	74AHC123

Descripción Electrónicos	Dual retriggerable monostable multivibrator with reset

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Fabricante Electrónico	PHILIPS [NXP Semiconductors]

Página de inicio	http://www.nxp.com

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8 / 24 page

2000 Mar 15

8

Philips Semiconductors

Product speciﬁcation

Dual retriggerable monostable multivibrator

with reset

74AHC123A;

74AHCT123A

handbook, halfpage

VCC

REXT

to nCEXT

(pin 14 or 6)

to nREXT/CEXT

(pin 15 or 7)

CEXT

MNA519

Fig.6 Timing component connections.

RECOMMENDED OPERATING CONDITIONS

SYMBOL

PARAMETER

CONDITIONS

74AHC

74AHCT

UNIT

MIN.

TYP.

MAX.

MIN.

TYP.

MAX.

VCC

DC supply voltage

2.0

5.0

5.5

4.5

5.0

5.5

V

VI

input voltage

0

−

5.5

0

−

5.5

V

VO

output voltage

0

−

VCC

0

−

VCC

V

Tamb

operating ambient

temperature

see DC and AC

characteristics per device

−40

+25

+85

−40

+25

+85

°C

−40

+25

+125

−40

+25

+125

°C

tr, tf

input rise and fall

time ratios

VCC = 3.3 ±0.3 V

−−

100

−−−

ns/V

VCC =5 ±0.5 V

−−

20

−−

20

ns/V

REXT

external timing

resistor

VCC =2V

5

−−

5

−−

k

Ω

VCC >3V

1

−−

1

−−

k

Ω

CEXT

external timing

capacitor

no limits

pF

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74AHC123 Datasheet(PDF) 8 Page - NXP Semiconductors

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