TC7129
Package Type
40-Pin PDIP
OSC1
OSC3
ANNUNICATOR
B
1
, C
1
, CONT
A
1
, G
1
, D
1
F
1
, E
1
, DP
1
B
2
, C
2
, LO BATT
A
2
, G
2
, D
2
F
2
, E
2
, DP
2
1
2
3
4
5
6
7
8
9
40 OSC2
39 DP
1
38 DP
2
37 RANGE
36 DGND
35 REF LO
34 REF HI
33 IN HI
32 IN LO
B
3
, C
3
, MINUS 10
Display
Output
Lines
A
3
, G
3
, D
3
11
F
3
, E
3
, DP
3
12
B
4
, C
4
, BC
5
13
A
4
, G
4
, D
4
14
F
4
, E
4
, DP
4
15
BP
3
16
BP
2
17
BP
1
18
V
DISP
19
DP
4
/OR 20
TC7129CPL
31 BUFF
30 C
REF
-
29 C
REF
+
28 COMMON
27 CONTINUITY
26 INT OUT
25 INT IN
24 V+
23 V-
22 LATCH/HOLD
21 DP
3
/UR
ANNUNCIATOR
B
1
, C
1
, CONT
A
1
, G
1
, D
1
B1, C1, CONT
44-Pin QFP
A1, G1, D1
ANNUNCIATOR
44-Pin PLCC
RANGE
RANGE
DGND
OSC3
OSC1
OSC2
DP
1
DP
2
NC
44 43 42 41 40 39 38 37 36 35 34
F
1
, E
1
, DP
1
1
B
2
, C
2
, BATT 2
A
2
, G
2
, D
2
3
F
2
, E
2
, DP
2
4
B
3
, C
3
, MINUS 5
NC 6
A
3
, G
3
, D
3
7
F
3
, E
3
, DP
3
8
B
4
, C
4
, BC
5
9
A
4
, G
4
, D
4
10
F
4
, E
4
, DP
4
11
12 13 14 15 16 17 18 19 20 21 22
DP
4
/OR
DP
3
/UR
LATCH/HOLD
V
DISP
INT IN
NC
BP
3
BP
2
BP
1
V+
V-
6
33 REF LO
32 REF HI
31 IN HI
30 IN LO
29 BUFF
F
1
, E
1
, DP
1
7
B
2
, C
2
, BATT
A
2
, G
2
, D
2
8
9
5
4
3
2
1
44 43 42 41 40
39 REF LO
38 REF HI
37 IN HI
36 IN LO
35 BUFF
F
2
, E
2
, DP
2
10
B
3
, C
3
, MINUS 11
NC 12
A
3
, G
3
, D
3
13
F
3
, E
3
, DP
3
14
B
4
, C
4
, BC
5
15
A
4
, G
4
, D
4
16
F
4
, E
4
, DP
4
17
18 19 20 21 22 23 24 25 26 27 28
DP
4
/OR
DP
3
/UR
V
DISP
LATCH/HOLD
INT IN
NC
BP
1
BP
3
BP
2
V+
V-
DGND
OSC3
OSC1
OSC2
DP
1
DP
2
NC
TC7129CKW
28 NC
27 C
REF
-
26 C
REF
+
25 COMMON
24 CONTINUITY
23 INT OUT
TC7129CLW
34 NC
33 C
REF
-
32 C
REF
+
31 COMMON
30 CONTINUITY
29 INT OUT
©
DS21459B-page 2
2002 Microchip Technology Inc.
MICROCHIP [ MICROCHIP TECHNOLOGY ]
