74ALVT16952 datasheet(9/14 Pages) PHILIPS

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Philips Semiconductors

Product specification

74ALVT16952

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

1998 Mar 19

AC CHARACTERISTICS (2.5V

"0.2V RANGE)

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

LIMITS

SYMBOL

PARAMETER

WAVEFORM

VCC = 2.5V ±0.2V

UNIT

MIN

TYP1

MAX

fMAX

Maximum clock frequency

125

156

MHz

tPLH

tPHL

Propagation delay

nCPBA to nAx, nCPAB to nBx

1.0

3.0

3.8

3.9

tPZH

tPZL

Output enable time

nOEBA to nAx, nOEAB to nBx

1.0

0.5

3.5

2.5

5.0

3.7

tPHZ

tPLZ

Output disable time

nOEBA to nAx, nOEAB to nBx

1.0

3.9

3.1

4.8

4.1

NOTES:

1. All typical values are at VCC = 2.5V and Tamb = 25°C

AC SETUP REQUIREMENTS (2.5V

"0.2V RANGE)

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

LIMITS

SYMBOL

PARAMETER

WAVEFORM

VCC = 2.5V ±0.2V

UNIT

MIN

TYP

tS(H)

ts(L)

Setup time

nAx to nCPAB or nBx to nCPBA

1.5

2.0

0.8

1.2

th(H)

th(L)

Hold time

nAx to nCPAB or nBx to nCPBA

0.5

–1.2

–0.8

ts(H)

ts(L)

Setup time

nCEAB to nCPAB, nCEBA to nCPBA

1.0

0.0

–0.2

th(H)

th(L)

Hold time

nCEAB to nCPAB, nCEBA to nCPBA

1.1

0.3

0.2

tw(H)

tw(L)

nCPAB or nCPBA pulse width,

High or Low

3.2

2.0

2.7

1.5

AC WAVEFORMS

VM = 1.5V, VIN = GND to 3.0V

1/fMAX

tw(H)

tw(L)

tPHL

tPLH

nCPBA or

nCPAB

nAx or nBx

SH00073

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

Pulse Width, and Maximum Clock Frequency

nAx, nBx

nCEAB,

nCEBA

nCPAB,

nCPBA

ts(H)

th(H)

ts(L)

th(L)

SH00074

Waveform 2. Data Setup and Hold Times

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