Table 7-1 lists the functional modes of the SN74AVC4T774-Q1 device.
Table 7-1 Function Table (Each 2-Bit
Section)
CONTROL INPUTS |
OUTPUT CIRCUITS(1) |
OPERATION |
OE |
DIR |
A PORT |
B PORT |
L |
L |
Enabled |
Hi-Z |
B data to A
bus |
L |
H |
Hi-Z |
Enabled |
A data to B
bus |
H |
X |
Hi-Z |
Hi-Z |
Isolation |
(1) Input circuits of the data I/Os are always active.