74LVC2244AD datasheet(8/16 Pages) PHILIPS

Part #	74LVC2244AD

Description	Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-state

PDF	16 Pages

Scroll/Zoom	100%

Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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8 / 16 page

1999 Sep 30

Philips Semiconductors

Product speciﬁcation

Octal buffer/line driver with 30

Ω series termination

resistors; 5 V input/output tolerant; 3-state

74LVC2244A

Fig.5 The 3-state enable and disable times.

handbook, full pagewidth

MNA362

tPLZ

tPHZ

outputs

disabled

outputs

enabled

outputs

enabled

output

LOW-to-OFF

OFF-to-LOW

output

HIGH-to-OFF

OFF-to-HIGH

nOE input

VOL

VOH

VCC

GND

tPZL

tPZH

Fig.6 Load circuitry for switching times.

Definitions for test circuit:

RL = Load resistor

CL = Load capacitance including jig and probe capacitance

(see Chapter “AC characteristics”).

RT = Termination resistance should be equal to the output impedance Zo

of the pulse generator.

TEST

tPLH/tPHL

open

tPLZ/tPZL

× VCC

tPHZ/tPZH

GND

VCC

<2.7 V

VCC

2.7 to 3.6 V

2.7 V

handbook, full pagewidth

open

GND

50 pF

× VCC

VCC

MNA368

D.U.T.

500

Ω

500

Ω

PULSE

GENERATOR

74LVC2244AD Datasheet(PDF) 8 Page - NXP Semiconductors

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