Philips Semiconductors

Product specification

74ALVT16543

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

1998 Feb 13

9

AC CHARACTERISTICS (2.5V

"0.2V RANGE)

LIMITS

SYMBOL

PARAMETER

WAVEFORM

UNIT

MIN

MAX

Propagation delay

nAx to nBx or nBx to nAx

2

1.0

1.0

1.8

2.7

5.1

4.5

ns

Propagation delay

nLEBA to nAx, nLEAB to nBx

1

2

1.5

1.5

3.9

3.6

6.4

5.9

ns

Output enable time

nOEBA to nAx, nOEAB to nBx

4

5

1.5

1.5

4.0

2.7

6.5

4.6

ns

Output disable time

nOEBA to nAx, nOEAB to nBx

4

5

1.5

1.5

3.7

2.6

5.6

4.0

ns

Output enable time

nEBA to nAx, nEAB to nBx

4

5

1.5

1.5

4.2

2.8

7.0

5.0

ns

Output disable time

nEBA to nAx, nEAB to nBx

4

5

1.5

1.5

3.6

2.4

5.6

3.9

ns

NOTE:

AC SETUP REQUIREMENTS (2.5V

"0.2V RANGE)

LIMITS

SYMBOL

PARAMETER

WAVEFORM

UNIT

MIN

TYP

Setup time

nAx to nLEAB, nBx to nLEBA

3

0

1.0

–0.9

0.2

ns

Hold time

nAx to nLEAB, nBx to nLEBA

3

0.8

1.7

–0.2

1.0

ns

Setup time

nAx to nEAB, nBx to nEBA

3

0

1.5

–1.0

0.4

ns

Hold time

nAx to nEAB, nBx to nEBA

3

0.5

2.0

–0.2

1.3

ns

Latch enable pulse width, Low

3

1.5

ns

AC WAVEFORMS

VM

VM

VIN

VM

tPHL

tPLH

VM

VOUT

0V

SW00185

whichever

is less

Waveform 1. Propagation Delay For Inverting Output

VM

VM

VM

tPLH

tPHL

VM

VIN

VOUT

0V

SW00186

whichever

is less

Waveform 2. Propagation Delay For Non-Inverting Output