SN54ALS526, SN54ALS527, SN54ALS528

SN74ALS526, SN74ALS527, SN74ALS528

FUSE-PROGRAMMABLE IDENTITY COMPARATORS

SDAS051A – JUNE 1984–REVISED MAY 1986

POST OFFICE BOX 655303

3

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’ALS526

&

2

P0

P1

3

P2

4

P3

5

P4

6

P5

7

P6

8

P7

9

P8

11

P9

12

P10

13

P11

14

P12

15

P13

16

P14

17

P15

18

G

1

19

P=Q

P=Q

15

1

G

14

P11

13

P10

12

P9

11

P8

10

P7

9

P6

7

P5

6

P4

5

P3

4

P2

3

P1

P0

2

&

’ALS528

’ALS527

&

2

P0

P1

3

P2

4

P3

5

P4

6

P5

7

P6

8

P7

9

G

1

P9

13

19

P=Q

11

P8

15

P10

17

P11

12

Q8

14

Q9

16

Q10

18

Q11

COMP

8

11

P

Q

11

8

P=Q

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

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

∗These inputs can be programmed to be active high. The asterisk is not a part of the symbol. For a correct symbol for the programmed device,

delete the polarity symbol (

) at any input whose programming fuse has been blown.