74ABT544 datasheet(10/19 Pages) PHILIPS

Teilenummer	74ABT544

Bauteilbeschribung	Octal latched transceiver with dual enable; inverting; 3-state

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Hersteller	PHILIPS [NXP Semiconductors]

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10 / 19 page

9397 750 14756

Product data sheet

Rev. 03 — 20 April 2005

10 of 19

Philips Semiconductors

74ABT544

Octal latched transceiver with dual enable; inverting; 3-state

12. Waveforms

tsu(H)

set-up time HIGH

An to LEAB, Bn to LEBA

see Figure 9

3.0

-

ns

An to EAB, Bn to EBA

see Figure 9

3.0

-

ns

tsu(L)

set-up time LOW

An to LEAB, Bn to LEBA

see Figure 9

3.0

-

ns

An to EAB, Bn to EBA

see Figure 9

3.0

-

ns

th(H)

hold time HIGH

An to LEAB, Bn to LEBA

see Figure 9

0.5

-

ns

An to EAB, Bn to EBA

see Figure 9

0.5

-

ns

th(L)

hold time LOW

An to LEAB, Bn to LEBA

see Figure 9

0.5

-

ns

An to EAB, Bn to EBA

see Figure 9

0.5

-

ns

twL

pulse width LOW LEAB and LEBA

see Figure 9

3.5

-

ns

Table 8:

Dynamic characteristics …continued

GND = 0 V; for test circuit see Figure 10.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VM = 1.5 V.

VOL and VOH are typical voltage output drop that occur with the output load.

Fig 5.

Propagation delay for inverting output

VM = 1.5 V.

VOL and VOH are typical voltage output drop that occur with the output load.

Fig 6.

Propagation delay for non-inverting output

001aac759

VOL

VOH

VM

tPHL

tPLH

VM

An, Bn,

LEBA, LEAB input

VI

GND

An, Bn output

001aac761

VOL

VOH

VI

VM

tPLH

tPHL

VM

GND

LEBA, LEAB input

An, Bn output

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