7LVC373APWDH datasheet(8/12 Pages) PHILIPS

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Philips Semiconductors

Product specification

74LVC373A

Octal D-type transparent latch with 5-volt

tolerant inputs/outputs (3-State)

1998 Jul 29

AC WAVEFORMS

with 5-volt tolerant inputs/outputs VM = 1.5V at VCC w 2.7V; VM =

0.5 VCC at VCC t 2.7V.

VOL and VOH are the typical output voltage drop that occur with the

output load.

VX = VOL + 0.3V at VCC w 2.7V; VX = VOL + 0.1 VCC at VCC t 2.7V

VY = VOH –0.3V at VCC w 2.7V; VY = VOH – 0.1 VCC at VCC t 2.7V

INPUT

tSU

NOTE: The shaded areas indicate when the input is permitted to change

for predictable output performance.

SW00073

tSU

GND

Waveform 4. Data setup and hold times for the Dn input to the

LE input. (The shaded areas indicate when the input is

permitted to change for predictable output performance).

TEST CIRCUIT

PULSE

GENERATOR

VIN

D.U.T.

VOUT

VCC

RL=500 Ω

SWITCH POSITION

TEST

SWITCH

tPLH/tPHL

Open

tPLZ/tPZL

<VCC

tPHZ/tPZH

GND

Test Circuit for 3-State Outputs

Open

GND

<VCC

DEFINITIONS

VCC

t 2.7V

2.7 – 3.6V

VIN

VCC

2.7V

RL = Load resistor

CL = Load capacitance includes jig and probe capacitance

RT = Termination resistance should be equal to ZOUT

of pulse generators.

SW00047

RL=500 Ω

Waveform 5. Load circuitry for switching times.

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