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UPD17147 Datasheet(PDF) 47 Page - NEC

Part # UPD17147
Description  SMALL, GENERAL-PURPOSE 4-BIT SINGLE-CHIP MICROCONTROLLERS
PDF  102 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD17147 Datasheet(HTML) 47 Page - NEC

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µPD17145(A1), 17147(A1), 17149(A1)
14.3 Operation of A/D Converter
The operation of the A/D converter can be executed in two modes, depending on the setting of the ADCSOFT
flag: successive and single modes.
ADCSOFT
Operation Mode of A/D Converter
0
Successive mode (A/D conversion)
1
Single mode (compare operation)
Figure 14-2. Relationships between Analog Input Voltage and Digital Conversion Result
N
256
Ideal conversion result
FFH
FEH
FDH
N
03H
02H
01H
00H
1
256
255
256
256
256
(
× VDD)
Analog input voltage (V)
0
2
256
254
256



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