Philips Semiconductors

Product specification

74ALVT16543

2.5V/3.3V 16-bit registered transceiver (3-State)

1998 Feb 13

10

VM

nAx,

nBx

VM

VM

VM

VM

VM

nLEAB, nLEBA,

nEAB, nEBA

ts(H)

th(H)

ts(L)

th(L)

tw(L)

0V

0V

NOTE: The shaded areas indicate when the input is permitted

to change for predictable output performance.

SW00187

whichever

is less

whichever

is less

Waveform 3. Data Setup and Hold Times and Latch Enable

Pulse Width

VM

nOEAB, nOEBA,

nEAB, nEBA

VM

tPZH

tPHZ

0V

VM

nAx, nBx

0V

SW00188

whichever

is less

Waveform 4. 3-State Output Enable Time to High Level and

Output Disable Time from High Level

tPZL

tPLZ

VM

VM

nOEAB, nOEBA,

nEAB, nEBA

nAx, nBx

0V

SW00189

whichever

is less

whichever

is less

VM

Waveform 5. 3-State Output Enable Time to Low Level and

Output Disable Time from Low Level

TEST CIRCUIT AND WAVEFORMS

PULSE

GENERATOR

VIN

VOUT

CL

VCC

RL

Test Circuit for 3-State Outputs

VM

VM

tW

NEGATIVE

PULSE

10%

10%

90%

90%

0V

VM

VM

tW

POSITIVE

PULSE

90%

90%

10%

10%

0V

tTHL (tF)

tTLH (tR)tTHL (tF)

tTLH (tR)

DEFINITIONS

See AC CHARACTERISTICS for value.

pulse generators.

INPUT PULSE REQUIREMENTS

FAMILY

74ALVT16

SWITCH POSITION

TEST

SWITCH

Open

GND

RL

Open

GND

SW00025

D.U.T.

Amplitude

Rep. Rate

whichever

is less

v10MHz

500ns

v2.5ns v2.5ns

VIN

VIN