74ALVT16646 datasheet(9/15 Pages) PHILIPS

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Philips Semiconductors

Product specification

74ALVT16646

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

1998 Feb 13

AC CHARACTERISTICS (3.3V

"0.3V RANGE)

GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω; Tamb = –40°C to +85°C.

LIMITS

SYMBOL

PARAMETER

WAVEFORM

VCC = 3.3V "0.3V

UNIT

MIN

TYP1

MAX

fMAX

Maximum clock frequency

150

MHz

tPLH

tPHL

Propagation delay

nCPAB to nBx or nCPBA to nAx

1.0

2.6

2.1

3.7

3.1

tPLH

tPHL

Propagation delay

nSAB to nBx or nSBA to nAx

1.0

2.4

2.1

4.0

3.8

tPLH

tPHL

Propagation delay

nAx to nBx or nBx to nAx

0.5

1.7

1.8

2.4

2.8

tPZH

tPZL

Output enable time

to High and Low level

0.5

2.3

2.0

3.9

4.4

tPHZ

tPLZ

Output disable time

from High and Low Level

1.5

3.4

2.8

5.0

4.2

tPZH

tPZL

Output enable time

nDIR to nAx or nBx

1.0

0.5

2.8

2.2

5.0

4.7

tPHZ

tPLZ

Output disable time

nDIR to nAx or nBx

1.5

1.0

3.5

3.1

5.4

4.7

NOTE:

1. All typical values are at VCC = 3.3V and Tamb = 25°C.

AC SETUP REQUIREMENTS (3.3V

"0.3V RANGE)

GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω; Tamb = –40°C to +85°C.

LIMITS

SYMBOL

PARAMETER

WAVEFORM

VCC = 3.3V "0.3V

UNIT

MIN

TYP1

tS(H)

tS(L)

Setup time, High or Low

nAx to nCPAB or nBx to nCPBA

1.6

1.0

th(H)

th(L)

Hold time, High or Low

nAx to nCPAB or nBx or nCPBA

0.0

–0.5

–0.7

tw(H)

tw(L)

Pulse width, High or Low

nCPAB or nCPBA

1.5

NOTE:

1. This data sheet limit may vary among suppliers.

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