CD74FCT543_14 Datasheet, PDF (2/11 Pages) Texas Instruments – BiCMOS OCTAL REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS

CD74FCT543
BiCMOS OCTAL REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
SCBS742 – JULY 2000
FUNCTION TABLE†
INPUTS
CEAB LEAB OEAB A
LATCH
STATUS
OUTPUT
B
H
X
X
X
Storing
Z
X
X
H
X
–
Z
L
H
L
X
Storing
B0‡
L
L
L
L Transparent
L
L
L
L
H Transparent
H
† _{A-to-B data flow is shown; B-to-A flow control is the same except that}
it uses CEBA, LEBA, and OEBA.
‡ _{Output level before the indicated steady-state input conditions were}
established
logic symbol^§
2
OEBA
23
CEBA
1
LEBA
13
OEAB
11
CEAB
14
LEAB
3
A1
4
A2
5
A3
6
A4
7
A5
8
A6
9
A7
10
A8
1EN3
G1
1C5
2EN4
G2
2C6
3 1 5D
6D 1 4
22
B1
21
B2
20
B3
19
B4
18
B5
17
B6
16
B7
15
B8
§ _{This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.}
2
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265