SN54ALS574B, SN54AS574, SN54AS575

SN74ALS574B, SN74ALS575A, SN74AS574, SN74AS575

OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS

SDAS165B – JUNE 1982 – REVISED JULY 1995

2

POST OFFICE BOX 655303

Function Tables

SN54ALS574B, SN74ALS574B, SN54AS574, SN74AS574

(each flip-flop)

INPUTS

OUTPUT

OE

CLK

D

Q

L

↑

H

H

L

↑

LL

L

LX

Q0

H

X

X

Z

SN74ALS575A, SN54AS575, SN74AS575

(each flip-flop)

INPUTS

OUTPUT

OE

CLR

CLK

D

Q

L

L

↑

X

L

L

H

↑

HH

L

H

↑

LL

L

HL

X

Q0

H

X

H

X

Z

OE

1D

2

1D

3

2D

4

3D

5

4D

6

5D

11

CLK

1Q

19

2Q

18

3Q

17

4Q

16

5Q

15

6Q

14

7Q

13

8Q

12

7

6D

8

7D

9

8D

EN

1

C1

OE

1D

3

1D

4

2D

5

3D

6

4D

7

5D

14

CLK

1Q

22

2Q

21

3Q

20

4Q

19

5Q

18

6Q

17

7Q

16

8Q

15

8

6D

9

7D

10

8D

EN

2

C1

CLR

1R

1

SN54ALS574B, SN74ALS574B,

SN54AS574, SN74AS574

SN74ALS575A, SN54AS575,

SN74AS575

† These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.

Pin numbers shown are for the DW, J, JT, N, and NT packages.