SN74S225

16

× 5 ASYNCHRONOUS FIRST-IN, FIRST-OUT MEMORY

WITH 3-STATE OUTPUTS

SDLS207B – SEPTEMBER 1976 – REVISED APRIL 1998

2

POST OFFICE BOX 655303

EN6

9

4D

4

D0

Q0

15

5

D1

Q1

14

6

D2

Q2

13

7

D3

Q3

12

8

D4

Q4

11

Z1

16

UNCK IN

FIFO 16

× 5

OE

6

CT = 0

18

CLR

UNCK OUT

3

2

IR

2

5, 2

OR

17

1, 3

1

CLKA

19

CLKB

3–

2+

2

&

CTR

G2

G3

C4

Z5

CT < 16

CT > 0

1

† This symbol is in accordance with ANSI/IEEE Standard 91-1984 and IEC Publication 617-12.