74ALVT16841 datasheet(9/14 Pages) PHILIPS

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Philips Semiconductors

Product specification

74ALVT16841

2.5V/3.3V 20-bit bus interface latch (3-State)

1998 Feb 13

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

Tamb = -40 to +85oC

VCC = +2.5V ±0.2V

UNIT

MIN

TYP

MAX

tPLH

tPHL

Propagation delay

nDx to nQx

0.5

1.8

2.1

3.0

3.6

tPLH

tPHL

Propagation delay

nLE to nQx

1.0

2.0

2.7

4.2

4.3

6.5

tPZH

tPZL

Output enable time

to High and Low level

1.5

0.5

3.0

1.8

4.0

3.2

tPHZ

tPLZ

Output disable time

from High and Low level

1.5

1.0

3.1

2.4

4.5

3.8

NOTE:

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

AC SETUP REQUIREMENTS (2.5V

"0.2V RANGE)

GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω

LIMITS

SYMBOL

PARAMETER

WAVEFORM

Tamb = -40 to +85oC

VCC = +2.5V ±0.2V

UNIT

Min

Typ

ts(H)

ts(L)

Setup time, High or Low

nDx to nLE

0.5

1.5

0.2

th(H)

th(L)

Hold time, High or Low

nDx to nLE

1.8

2.0

0.8

tw(H)

nLE pulse width High

1.5

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