TC820 TelCom Semiconductor, TC820 Datasheet - Page 6

• Manufacturer Part Number: TC820
• Description: 3-3/4 DIGIT A/D CONVERTER WITH FREQUENCY COUNTER AND LOGIC PROBE
• Manufacturer: TelCom Semiconductor

TC820
PIN CONFIGURATIONS
3-154
SEGMENTS BC1BT
SEGMENTS BC4P3
SEGMENTS BC3P2
SEGMENTS PKFE1
SEGMENTS AGD4
SEGMENTS AGD3
SEGMENTS AGD2
SEGMENTS AGD1
SEGMENTS OFE2
SEGMENTS BCP1
SEGMENTS HFE3
SEGMENTS L-E4
RANGE/FREQ
ANNUNC
DP0/LO
LOGIC
DGND
BP3
BP2
BP1
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
TC820CPL
39
32
31
30
28
40
38
37
36
35
34
33
29
27
26
25
24
23
22
21
V DD
V INT
C AZ
V BUFF
V IN
V
V
V REF
C
C REF
COM
V
PK HOLD
FREQ/VOLTS
BUZ IN
BUZ OUT
DP1/HI
OSC3
OSC2
OSC1
SS
–
IN
–
REF
–
REF
+
+
+
BCP2P1
BP1BT
BC3P2
BC2P1
PKFE1
V
BP1BT
BC3P2
PKFE1
V DISP
AGD2
AGD1
OFE2
AGD2
AGD1
DISP
OFE2
BP3
BP2
BP1
BP3
BP2
BP1
10
11
12
13
14
15
16
17
10
11
7
8
9
1
2
3
4
5
6
7
8
9
18 19 20 21
44 43 42 41
12 13 14 15
6
5
4
3-3/4 A/D CONVERTER WITH
3
TC820CKW
TC820CLW
22
16
40
2
TELCOM SEMICONDUCTOR, INC.
FREQUENCY COUNTER
23 24
39 38
17 18
1
44
AND LOGIC PROBE
43 42 41 40
25 26 27 28
37 36 35 34
19 20
21 22
39
38
37
36
35
34
33
32
31
30
29
27
26
25
24
23
33
32
31
30
29
28
C
V
V +
V –
V –
V
C
C +
V
C
C REF
COM
V SS
OR
COM
OR
V
V
V
V
V
C
AZ
BUFF
IN
REF
+
REF
REF
REF
SS
+
AZ
IN
–
BUFF
+
IN
–
IN
–
REF
+
REF
–
REF