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74LVC2244A

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

Philips Electronics 

Philips Semiconductors

Octal buffer/line driver with 30 Ω series termination

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

Product specification

74LVC2244A

handbook, full pagewidth

VI

nOE input

GND

VCC

output

LOW-to-OFF

OFF-to-LOW

VOL

VOH

output

HIGH-to-OFF

OFF-to-HIGH

GND

VM

tPLZ

tPZL

tPHZ

VX

VY

VM

tPZH

VM

outputs

enabled

outputs

disabled

outputs

enabled

MNA362

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

handbook, full pagewidth

VI

PULSE

GENERATOR

VCC

VO

D.U.T.

RT

S1

RL

500 Ω

2 × VCC

open

GND

CL

50 pF

RL

500 Ω

MNA368

TEST

tPLH/tPHL

tPLZ/tPZL

tPHZ/tPZH

S1

open

2 × VCC

GND

1999 Sep 30

VCC

<2.7 V

2.7 to 3.6 V

VI

VCC

2.7 V

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.

Fig.6 Load circuitry for switching times.

8

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