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UPD178024GC Datasheet(PDF) 23 Page - NEC

Part # UPD178024GC
Description  8-BIT SINGLE-CHIP MICROCONTROLLER
PDF  56 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD178024GC Datasheet(HTML) 23 Page - NEC

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23
µPD178023, 178024
Data Sheet U14126EJ1V0DS00
3.5 A/D Converter
An A/D converter with a resolution of 8 bits
× 6 channels is provided.
Figure 3-7. Block Diagram of A/D Converter
ANI0/P10
ANI1/P11
ANI2/P12
ANI3/P13
ANI4/P14
ANI5/P15
Sample & hold circuit
Voltage comparator
Voltage
comparator
Successive
approximation
register (SAR)
A/D conversion result
register 3 (ADCR3)
Control
circuit
Control
circuit
VDD
GND
ADCS3
INTAD3
PFEN3
ADCS3
ADS33 ADS32 ADS31 ADS30
0
FR32 FR31 FR30
0
0
0
PFCM3 PFHRM3
Power-fail comparison mode
register 3 (PFM3)
A/D converter mode
register 3 (ADM3)
Analog input channel
specification register 3 (ADS3)
4
Internal bus
Power-fail comparison threshold
value register 3 (PFT3)



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