CD74FCT823A Datasheet, PDF (2/7 Pages) Texas Instruments – BiCMOS FCT Interface Logic, 9-Bit D-Type Flip-Flops, Three-State

Functional Diagram
CD74FCT823A, CD74FCT824A
D0
2
D1
3
D2
4
D3
5
D4
6
D5
7
D6
8
D7
9
D8
10
CE
14 1
OE
23
22
21
20
19
18
17
16
15
11 13
823A
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
824A
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
CP
MR
GND = PIN 12
V_CC = PIN 24
INPUTS
OE
MR
CE
H
X
L
H
X
L
H
L
X
L
L
X
H
H
H
L
H
H
H
H
L
H
H
L
L
H
L
L
H
L
NOTE:
1. H= HIGH Voltage Level
L = LOW Voltage Level
NC = No Change
↑ = LOW to HIGH Transition
X = Don’t Care
Z = HIGH Impedance
IEC Logic Symbol
CD74FCT823A
1
EN
11
R
14
G1
13
>1C2
2
2D
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
TRUTH TABLE (Note 1)
Q OUTPUTS
D
CP CD74FCT823A CD74FCT824A FUNCTION
L
↑
Z
H
↑
Z
Z
High Z
Z
X
X
Z
X
X
L
Z
Reset
L
X
X
Z
X
X
NC
Z
Hold
NC
L
↑
Z
H
↑
Z
L
↑
L
H
↑
H
Z
Load
Z
H
L
CD74FCT824A
1
EN
11
R
14
G1
13
>1C2
2
2D
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
8-2