xr88c681 Exar Corporation, xr88c681 Datasheet - Page 3

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xr88c681

Manufacturer Part Number

xr88c681

Description

Cmos Dual Channel Uart Duart

Manufacturer

Exar Corporation

Datasheet

1.XR88C681.pdf (101 pages)

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PIN CONFIGURATION

RXDB

TXDB

Rev. 2.11

-WR

OP1

OP3

OP5

OP7

-RD

IP0

NC

A3

10

11

12

13

14

15

16

17

8

9

7

44 Lead PLCC

XR-68C681CJ

PLCC

RXDB

TXDB

GND

-WR

OP1

-RD

A0

A1

A2

A3

D1

D3

D5

D7

28 Lead PDIP (0.600”)

10

12

13

14

11

1

2

3

4

5

6

7

8

9

38

37

36

35

34

33

32

31

30

29

39

CS

-RESET

X2

X1/CLK

RXDA

NC

TXDA

OP0

OP2

OP4

OP6

3

27

26

25

24

23

22

21

20

19

18

17

16

15

28

IP2

-CS

RESET

X2

X1/CLK

RXDA

TXDA

OP0

D0

D2

D4

D6

-INTR

V

CC

40 Lead PDIP, CDIP (0.600”)

RXDB

TXDB

-WR

OP1

OP3

OP5

OP7

GND

-RD

IP3

IP1

IP0

A0

A1

A2

A3

D1

D3

D5

D7

10

12

13

14

15

16

17

18

19

20

1

2

3

4

5

6

7

8

9

11

XR88C681

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

V

IP4/IEI

IP5/IEO

-IP6/IACK

IP2

-CS

RESET

X2

X1/CLK

RXDA

TXDA

OP0

OP2

OP4

OP6

D0

D2

D4

D6

-INTR

CC

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