Datasheet

SN54ABT623A, SN74ABT623
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS114D – FEBRUARY 1991 – REVISED MAY 1997
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
FUNCTION TABLE
INPUTS
OPERATION
OEBA OEAB
OPERATION
L L B data to A bus
L H
B data to A bus,
A data to B bus
H L Isolation
H H A data to B bus
logic symbol
†
EN1
19
EN2
1
OEAB
2
A1
3
A2
B1
18
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
B2
17
B3
16
B5
14
B4
15
B6
13
B8
11
B7
12
OEBA
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
1
2
1
1
logic diagram (positive logic)
A1
B1
OEBA
OEAB
To Seven Other Channels
19
1
218