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UPD17062 Datasheet(PDF) 235 Page - Renesas Technology Corp

Part # UPD17062
Description  MOS INTEGRATED CIRCUIT
PDF  298 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

UPD17062 Datasheet(HTML) 235 Page - Renesas Technology Corp

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µPD17062
19. A/D CONVERTER
The
µPD17062 contains a 4-bit program-controlled A/D converter that operates with a successive compari-
son method.
19.1
PRINCIPLE OF OPERATION
The A/D converter in the
µPD17062 consists of a 4-bit resistor string-based D/A converter and comparator.
The D/A converter is set with data using a 4-bit register (ADCR) mapped at peripheral address 02H. The
result of comparison is judged according to the ADCCMP flag in the register file.
Fig. 19-1
A/D Converter Configuration
ADCCH
ADCCH ADCCH
AD
2
1
0
CCMP
ADCR
D/A converter
Channel
selector
RF : 21H
ADCCH (R/W)
ADCCMP (R)
Comparator
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
Peripheral address: 02H
ADCR (R/W)



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