SN54LS373, SN54LS374, SN54S373, SN54S374,
SN74LS373, SN74LS374, SN74S373, SN74S374
OCTAL D-TYPE TRANSPARENT LATCHES AND EDGE-TRIGGERED FLIP-FLOPS
SDLS165B – OCTOBER 1975 – REVISED AUGUST 2002
logic diagrams (positive logic)
’LS373, ’S373
Transparent Latches
OC
1
OC
1
’LS374, ’S374
Positive-Edge-Triggered Flip-Flops
C
11
C1
2
CLK
1Q
1D
11
C1
3
1D
2
1D
3
1D
1Q
C1
2D
4
1D
5
C1
2Q
2D
4
1D
5
2Q
C1
3D
7
1D
6
C1
3Q
3D
7
1D
6
3Q
C1
4D
8
1D
9
C1
4Q
4D
8
1D
9
4Q
C1
5D
13
1D
12
C1
5Q
5D
13
1D
12
5Q
C1
6D
14
1D
15
C1
6Q
6D
14
1D
15
6Q
C1
7D
17
1D
16
C1
7Q
7D
17
1D
16
7Q
C1
8D
18
1D
19
C1
8Q
8D
18
1D
19
8Q
for ’S373 Only
Pin numbers shown are for DB, DW, J, N, NS, and W packages.
for ’S374 Only
4
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265