TC835

DS21478B-page 2

© 2002 Microchip Technology Inc.

Package Type

NOTES: 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.

64-Pin PQFP

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

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

TC835CPI

28-Pin PDIP

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

BUFF OUT

AZ IN

INT OUT

ANALOG

COM

REF IN

V-

D4

B8 (MSD)

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

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

RUN/HOLD

44-Pin PQFP