HD6433044 Datasheet, PDF (535/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

15.1.3 Input Pins
Table 15-1 summarizes the A/D converter’s input pins. The eight analog input pins are divided
into two groups: group 0 (AN₀ to AN₃), and group 1 (AN₄ to AN₇). AV_CC and AV_SS are the
power supply for the analog circuits in the A/D converter. V_REF is the A/D conversion reference
voltage.
Table 15-1 A/D Converter Pins
Pin Name
Analog power supply pin
Analog ground pin
Reference voltage pin
Analog input pin 0
Analog input pin 1
Analog input pin 2
Analog input pin 3
Analog input pin 4
Analog input pin 5
Analog input pin 6
Analog input pin 7
A/D external trigger input pin
Abbrevi-
ation
I/O
AV_CC
AV_SS
V_REF
AN₀
AN₁
AN₂
AN₃
AN₄
AN₅
AN₆
AN₇
ADTRG
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Function
Analog power supply
Analog ground and reference voltage
Analog reference voltage
Group 0 analog inputs
Group 1 analog inputs
External trigger input for starting A/D conversion
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