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TC811 Datasheet(PDF) 4 Page - TelCom Semiconductor, Inc

Part # TC811
Description  3-1/2 DIGIT A/D CONVERTER WITH HOLD AND DIFFERENTIAL REFERENCE INPUTS
PDF  12 Pages
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Manufacturer  TELCOM [TelCom Semiconductor, Inc]
Direct Link  http://www.telcom-semi.com
Logo TELCOM - TelCom Semiconductor, Inc

TC811 Datasheet(HTML) 4 Page - TelCom Semiconductor, Inc

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TELCOM SEMICONDUCTOR, INC.
3-1/2 DIGIT A/D CONVERTER WITH HOLD AND
DIFFERENTIAL REFERENCE INPUTS
TC811
PIN DESCRIPTION
Pin No.
40-Pin Plastic DIP
Symbol
Description
1
HLDR
Hold pin, logic 1 holds present display reading.
2D1
Activates the D section of the units display.
3C1
Activates the C section of the units display.
4B1
Activates the B section of the units display.
5A1
Activates the A section of the units display.
6F1
Activates the F section of the units display.
7G1
Activates the G section of the units display.
8E1
Activates the E section of the units display.
9D2
Activates the D section of the tens display.
10
C2
Activates the C section of the tens display.
11
B2
Activates the B section of the tens display.
12
A2
Activates the A section of the tens display.
13
F2
Activates the F section of the tens display.
14
E2
Activates the E section of the tens display.
15
D3
Activates the D section of the hundreds display.
16
B3
Activates the B section of the hundreds display.
17
F3
Activates the F section of the hundreds display.
18
E3
Activates the E section of the hundreds display.
19
AB4
Activates both halves of the 1 in the thousands display.
20
POL
Activates the negative polarity display.
21
BP
Backplane drive output.
22
G3
Activates the G section of the hundreds display.
23
A3
Activates the A section of the hundreds display.
24
C3
Activates the C section of the hundreds display.
25
G2
Activates the G section of the tens display.
26
V–
Negative power supply voltage.
27
VINT
Integrator output, connection for CINT.
28
VBUFF
Buffer output, connection for RINT.
29
CAZ
Integrator input, connection for CAZ.
30
VIN–
Analog input low.
31
VIN+
Analog input high.
32
COM
Analog Common: Internal zero reference.
33
VREF–
Reference input low.
34
CREF–
Negative connection for reference capacitor.
35
CREF+
Positive connection for reference capacitor.
36
VREF+
Reference input high.
37
TEST
All LCD segment test when pulled high (V+).
38
V+
Positive power supply voltage.
39
OSC2
Crystal oscillator output.
40
OSC1
Crystal oscillator input.



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