74ABT544 Datasheet, PDF (11/19 Pages) NXP Semiconductors – Octal latched transceiver with dual enable, inverting 3-State

Philips Semiconductors
74ABT544
Octal latched transceiver with dual enable; inverting; 3-state
V_I
OEAB, OEBA,
EAB, EBA input
GND
V_OH
An, Bn output
V_OL
V_M
V_M
t _PZH
t _PHZ
V_M
V_OH − 0.3 V
001aac760
Fig 7.
V_M = 1.5 V.
V_OL and V_OH are typical voltage output drop that occur with the output load.
3-state output enable time to HIGH-level and output disable time from HIGH-level
V_I
OEAB, OEBA,
EAB, EBA input
GND
V_OH
An, Bn output
V_OL
V_M
V_M
t _PZL
t _PLZ
V_M
V_OL + 0.3 V
001aac762
Fig 8.
V_M = 1.5 V.
V_OL and V_OH are typical voltage output drop that occur with the output load.
3-state output enable time to LOW-level and output disable time from LOW-level
V_OH
LEAB, LEBA input
V_OL
V_I
An, Bn input
GND
V_M
V_M
V_M
t_su(H) t_h(H)
V_M
t_wL
V_M
V_M
t _{s u (L)}
t _{h (L)}
001aac763
V_M = 1.5 V.
The shaded areas indicate when the input is permitted to change for predictable output
performance.
Fig 9. Data set-up and hold times and latch enable pulse width
9397 750 14756
Product data sheet
Rev. 03 — 20 April 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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