TC811 TelCom Semiconductor, TC811 Datasheet - Page 4

• Manufacturer Part Number: TC811
• Description: 3-1/2 DIGIT A/D CONVERTER WITH HOLD AND DIFFERENTIAL REFERENCE INPUTS
• Manufacturer: TelCom Semiconductor

TC811
PIN DESCRIPTION
40-Pin Plastic DIP
3-140
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Symbol
C
HLDR
V
C
V
V
TEST
OSC
OSC
COM
POL
V
V
V
AB
C
REF
BP
BUFF
REF
REF
REF
G
G
G
D
C
B
A
F
E
D
C
B
A
F
E
D
B
F
E
A
C
V
V
IN
IN
INT
AZ
1
2
3
+
1
1
1
1
1
1
2
2
2
2
2
3
3
3
3
3
3
2
–
4
–
+
–
–
+
+
2
1
Description
Hold pin, logic 1 holds present display reading.
Activates the D section of the units display.
Activates the C section of the units display.
Activates the B section of the units display.
Activates the A section of the units display.
Activates the F section of the units display.
Activates the G section of the units display.
Activates the E section of the units display.
Activates the D section of the tens display.
Activates the C section of the tens display.
Activates the B section of the tens display.
Activates the A section of the tens display.
Activates the F section of the tens display.
Activates the E section of the tens display.
Activates the D section of the hundreds display.
Activates the B section of the hundreds display.
Activates the F section of the hundreds display.
Activates the E section of the hundreds display.
Activates both halves of the 1 in the thousands display.
Activates the negative polarity display.
Backplane drive output.
Activates the G section of the hundreds display.
Activates the A section of the hundreds display.
Activates the C section of the hundreds display.
Activates the G section of the tens display.
Negative power supply voltage.
Integrator output, connection for C
Buffer output, connection for R
Integrator input, connection for C
Analog input low.
Analog input high.
Analog Common: Internal zero reference.
Reference input low.
Negative connection for reference capacitor.
Positive connection for reference capacitor.
Reference input high.
All LCD segment test when pulled high (V
Positive power supply voltage.
Crystal oscillator output.
Crystal oscillator input.
3-1/2 DIGIT A/D CONVERTER WITH HOLD AND
DIFFERENTIAL REFERENCE INPUTS
INT
AZ
.
INT
.
.
+
).
TELCOM SEMICONDUCTOR, INC.