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TC835 Datasheet(PDF) 10 Page - Microchip Technology

Part # TC835
Description  Personal Computer Data Acquisition A/D Converter
PDF  24 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC835 Datasheet(HTML) 10 Page - Microchip Technology

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TC835
DS21478B-page 10
© 2002 Microchip Technology Inc.
5.0
DIGITAL SECTION
FUNCTIONAL DESCRIPTION
The major digital subsystems within the TC835 are
illustrated in Figure 5-1, with timing relationships
shown in Figure 5-2. The multiplexed BCD output data
can be displayed on LCD or LED. The digital section is
best described through a discussion of the control sig-
nals and data outputs.
FIGURE 5-1:
DIGITAL SECTION FUNCTIONAL DIAGRAM
Latch
Latch
Latch
Latch
Latch
Counters
Control Logic
Multiplexer
Polarity
D5
D4
D3
D2
D1
13 B1
14 B2
15 B4
16 B8
Polarity
FF
MSB
Digit
Drive
Signal
LSB
Data
Output
24
22
25
27
28
26
21
DGND
Clock
In
RUN/
HOLD
Overrange
STROBE
Busy
Underrange
Zero
Cross
Detect
From
Analog
Section



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