74HC2G126DP datasheet(11/20 Pages) PHILIPS

11 / 20 page

2003 Mar 03

Philips Semiconductors

Product speciﬁcation

Dual buffer/line driver; 3-state

74HC2G126; 74HCT2G126

handbook, full pagewidth

MNA949

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 The 3-state enable and disable times.

For 74HC2G126: VM = 50%; VI = GND to VCC

For 74HCT2G126: VM = 1.3 V; VI = GND to 3.0 V.

handbook, full pagewidth

open

GND

VCC

MNA232

D.U.T.

RL =

1000

Ω

PULSE

GENERATOR

Fig.7 Load circuitry for switching times.

Definitions for test circuit:

CL = Load capacitance including jig and probe capacitance (see “AC characteristics” for values).

RL = Load resistance (see “AC characteristics” for values).

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

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