SN54AS877, SN74AS877

8BIT UNIVERSAL TRANCEIVER PORT CONTROLLERS

SDAS234 − D2661, DECEMBER 1982 − REVISED AUGUST 1985

POST OFFICE BOX 655303

POST OFFICE BOX 1443

3

S0

1

0

S1

2

S2

3

2

CLK

23

Z9

SERIN

22

Z11

Z12

4

A1

(1/3/5)

13,1

14,(3/5)

(4/5/6)10D

(0/2)10D

B1

21

11

12

≥1

I=0

(0/2/4)

Z13

Z16

(0/2/4)

I=0

≥1

15

20

B2

(0/2)10D

17(3/5)

16,1

(1/3/5)

A2

5

Z15

Z33

11

A8

(1/3/5)

34,1

35(3/5)

(0/2)10D

B8

14

33

≥1

I=0

(0/2/4)

Z34

A3

6

19

B3

A4

7

18

B4

A5

8

17

B5

A6

9

16

B6

A7

10

15

B7

13

Q8

35

C10/7R

9

SRG8

(PORT CONTROLLER)

12

0

2/4

9

(4/5/6)

≥1

Z14

13

(1/3)10D

EN

0

7

Z17

2/4

0

15

(1/3)10D

16

33

0

2/4

Z35

34

(1/3)10D

≥1

≥1

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

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