Datasheet
SDAS065B − DECEMBER 1982 − REVISED JANUARY 1995
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
Function Tables
′ALS576B, ′AS576
(each flip-flop)
INPUTS
OUTPUT
OE CLK D
OUTPUT
Q
L ↑ H L
L ↑ LH
L LX
Q
0
H X X Z
SN74ALS577A
(each flip-flop)
INPUTS
OUTPUT
OE CLR CLK D
OUTPUT
Q
L L ↑ X H
L H ↑ HL
L H ↑ LH
L HLX
Q
0
H X X X Z
logic symbols
†
OE
1D
2
1D
3
2D
4
3D
5
4D
6
5D
11
CLK
19
18
17
16
15
14
13
12
7
6D
8
7D
9
8D
EN
1
C1
OE
1D
3
1D
4
2D
5
3D
6
4D
7
5D
14
CLK
22
21
20
19
18
17
16
15
8
6D
9
7D
10
8D
EN
2
C1
CLR
1R
1
′
ALS576B,
′
AS576 SN74ALS577A
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
†
These symbols are in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
Pin numbers shown for the ′ALS576B and ′AS576 are for the DW,
J, N, and W packages.
Pin numbers shown for the SN74ALS577A are for the DW and NT
packages.