74ABT544 Datasheet, PDF (10/19 Pages) NXP Semiconductors – Octal latched transceiver with dual enable, inverting 3-State

Philips Semiconductors
74ABT544
Octal latched transceiver with dual enable; inverting; 3-state
Table 8: Dynamic characteristics …continued
GND = 0 V; for test circuit see Figure 10.
Symbol Parameter
t_su(H)
set-up time HIGH
An to LEAB, Bn to LEBA
An to EAB, Bn to EBA
t_su(L)
set-up time LOW
An to LEAB, Bn to LEBA
An to EAB, Bn to EBA
t_h(H)
hold time HIGH
An to LEAB, Bn to LEBA
An to EAB, Bn to EBA
t_h(L)
hold time LOW
An to LEAB, Bn to LEBA
An to EAB, Bn to EBA
t_wL
pulse width LOW LEAB and LEBA
12. Waveforms
Conditions
see Figure 9
see Figure 9
see Figure 9
see Figure 9
see Figure 9
see Figure 9
see Figure 9
see Figure 9
see Figure 9
Min
Typ
Max Unit
3.0
-
-
ns
3.0
-
-
ns
3.0
-
-
ns
3.0
-
-
ns
0.5
-
-
ns
0.5
-
-
ns
0.5
-
-
ns
0.5
-
-
ns
3.5
-
-
ns
V_I
An, Bn,
LEBA, LEAB input
GND
V_OH
An, Bn output
V_OL
V_M
V_M
t _PHL
t _PLH
V_M
V_M
001aac759
Fig 5.
V_M = 1.5 V.
V_OL and V_OH are typical voltage output drop that occur with the output load.
Propagation delay for inverting output
9397 750 14756
Product data sheet
V_I
LEBA, LEAB input
GND
V_OH
An, Bn output
V_OL
V_M
V_M
t _PLH
t _PHL
V_M
V_M
001aac761
Fig 6.
V_M = 1.5 V.
V_OL and V_OH are typical voltage output drop that occur with the output load.
Propagation delay for non-inverting output
Rev. 03 — 20 April 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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