UPD75048CW 查看數據表（PDF） - NEC => Renesas Technology

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UPD75048CW

4-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD75048

6.8 A/D CONVERTER

The µPD75048 has an 8-bit precision successive approximation A/D converter with 8 analog input

channels (AN0 to AN7).

Internal bus

AN0/P110

AN1/P111

AN2/P112

AN3/P113

AN4

AN5

AN6

AN7

AVREF+

AVREF-

0 ADM6 ADM5 ADM4 SOC EOC 0

0 ADM

8

Sample hold circuit

Control circuit

+

–

Comparator

SA register (8)

8

Tap decoder

R/2 R

R

Serial resister string

R

R/2

Fig. 6-7 A/D Converter Block Diagram

31

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