Philips Semiconductors

Product specification

74ALVT16646

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

1998 Feb 13

11

AC CHARACTERISTICS (2.5V

"0.2V RANGE)

LIMITS

SYMBOL

PARAMETER

WAVEFORM

UNIT

MIN

MAX

Maximum clock frequency

1

150

MHz

Propagation delay

nCPAB to nBx or nCPBA to nAx

1

1.0

1.0

3.2

2.8

4.8

4.2

ns

Propagation delay

nSAB to nBx or nSBA to nAx

2

1.5

1.5

3.4

3.4

5.8

6.0

ns

Propagation delay

nAx to nBx or nBx to nAx

2

3

0.5

0.5

2.2

2.3

3.2

3.8

ns

Output enable time

to High and Low level

5

6

1.5

1.0

3.4

2.7

5.8

6.0

ns

Output disable time

from High and Low Level

5

6

1.5

1.0

3.2

2.5

5.2

3.7

ns

Output enable time

nDIR to nAx or nBx

5

6

2.0

1.0

4.1

2.5

7.0

4.1

ns

Output disable time

nDIR to nAx or nBx

5

6

1.5

1.0

3.9

3.1

6.1

4.9

ns

NOTE:

AC SETUP REQUIREMENTS (2.5V

"0.2V RANGE)

LIMITS

SYMBOL

PARAMETER

WAVEFORM

UNIT

MIN

TYP

Setup time, High or Low

nAx to nCPAB or nBx to nCPBA

4

2.0

2.0

1.2

1.2

ns

Hold time, High or Low

nAx to nCPAB or nBx or nCPBA

4

0.0

0.0

–1.0

–1.0

ns

Pulse width, High or Low

nCPAB or nCPBA

1

1.5

1.5

ns

AC WAVEFORMS

nCPBA or

nCPAB

nAx or nBx

SH00030

0V

whichever

is less

Waveform 1. Propagation Delay, Clock Input to Output, Clock

Pulse Width, and Maximum Clock Frequency

nSBA or nSAB

nAx or nBx

nAx or nBx

nAx or nBx

SH00031

0V

Waveform 2. Propagation Delay, nSAB to nBx or nSBA to nAx,

nAx to nBx or nBx to nAx