3-67

TELCOM SEMICONDUCTOR, INC.

7

6

5

4

3

1

2

8

PERSONAL COMPUTER

DATA ACQUISITION A/D CONVERTER

TC835

PIN CONFIGURATIONS

27

28

29

30

31

32

33

7

4

3

2

1

TC835CKW

12

13

14

15

17

18

44

43

42

41

39

38

40

16

37

36

35

34

19

20

21

22

26

8

25

9

24

10

23

11

5

6

NC

NC

RUN/HOLD

DGND

POLARITY

D2

NC

NC

CLK IN

NC

INT OUT

AZ IN

BUFF OUT

REF CAP–

–INPUT

+INPUT

V+

NC

NC

REF CAP+

D1 (LSD)

BUSY

NOTES:

TC835CPI

1

2

3

4

RUN/HOLD

5

6

7

8

9

10

11

12

13

14

28

27

26

25

24

23

22

21

20

19

18

17

16

15

STROBE

OVERRANGE

B4

D3

D2

D1 (LSD)

BUSY

CLOCK IN

POLARITY

DIGTAL GND

UNDERRANGE

B2

(LSB) B1

(MSD) D5

V

+

+INPUT

– INPUT

CREF

CREF

BUFF OUT

AZ IN

INT OUT

ANALOG

COM

REF IN

V–

D4

B8 (MSD)

+

–

1. NC = No internal connection.

2. Pins 9, 25, 40 and 56 are connected to the die substrate.

The potential at these pins is approximately V

+

. No

external connections should be made.

63

4

3

2

1

16

15

14

10

9

8

7

6

5

12

11

40

41

42

43

44

45

46

34

35

36

37

38

39

48

33

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

61 60 59 58 57 56 55 54 53 52 51 50 49

64

TC835CBU

32

62

13

47

NOTES 1 & 2

NC

NC

NC

NC

NC

NC

NC

NC

OVERRANGE

UNDERRANGE

SUB

V–

REF IN

ANALOG COM

NC

NC

D3

NC

NC

NC

NC

D4

B3

B4

B2

SUB

B1

D5

NC

NC

NC

NC