TC7129(2002) View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

TC7129
(Rev.:2002)

4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers

Microchip Technology 

TC7129

Package Type

40-Pin PDIP

OSC1 1

OSC3 2

ANNUNICATOR 3

B1, C1, CONT 4

A1, G1, D1 5

F1, E1, DP1 6

B2, C2, LO BATT 7

A2, G2, D2 8

F2, E2, DP2 9

B3, C3, MINUS 10

Display

Output

Lines

A3, G3, D3 11

F3, E3, DP3 12

B4, C4, BC5 13

A4, G4, D4 14

F4, E4, DP4 15

BP3 16

BP2 17

BP1 18

VDISP 19

DP4/OR 20

TC7129CPL

40 OSC2

39 DP1

38 DP2

37 RANGE

36 DGND

35 REF LO

34 REF HI

33 IN HI

32 IN LO

31 BUFF

30 CREF-

29 CREF+

28 COMMON

27 CONTINUITY

26 INT OUT

25 INT IN

24 V+

23 V-

22 LATCH/HOLD

21 DP3/UR

44-Pin QFP

44-Pin PLCC

44 43 42 41 40 39 38 37 36 35 34

6 5 4 3 2 1 44 43 42 41 40

F1, E1, DP1 1

33 REF LO

F1, E1, DP1 7

39 REF LO

B2, C2, BATT 2

A2, G2, D2 3

32 REF HI

31 IN HI

B2, C2, BATT 8

A2, G2, D2 9

38 REF HI

37 IN HI

F2, E2, DP2 4

30 IN LO

F2, E2, DP2 10

36 IN LO

B3, C3, MINUS 5

NC 6

A3, G3, D3 7

TC7129CKW

29 BUFF

28 NC

27 CREF-

B3, C3, MINUS 11

NC 12

A3, G3, D3 13

TC7129CLW

35 BUFF

34 NC

33 CREF-

F3, E3, DP3 8

B4, C4, BC5 9

A4, G4, D4 10

26 CREF+

F3, E3, DP3 14

25 COMMON

B4, C4, BC5 15

24 CONTINUITY A4, G4, D4 16

32 CREF+

31 COMMON

30 CONTINUITY

F4, E4, DP4 11

23 INT OUT

12 13 14 15 16 17 18 19 20 21 22

F4, E4, DP4 17

29 INT OUT

18 19 20 21 22 23 24 25 26 27 28

DS21459B-page 2

© 2002 Microchip Technology Inc.

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