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Chapter 15 A/D Converter
Overview
XV - 2
15-1 Overview
This LSI has an A/D converter with 10 bits resolution. That has a built-in sample hold circuit, and software
can switch channel 0 to 6 (AN0 to AN6) to analog input. As A/D converter is stopped, the power consump-
tion can be reduced by a built-in ladder resistance. A/D converter is activated by 2 factors : a register setup
or an external interrupt.
15-1-1 Functions
Table 15-1-1 shows the A/D converter functions.
Table 15-1-1 A/D Converter Functions
A/D Input Pins 7 pins
Pins AN6 to AN0
Interrupt ADIRQ
Resolution 10 bits
Conversion Time (Min.) 9.6
µ
s (T
AD
=as 800 ns)
Input range V
REF
−
to V
REF
+
Power Consumption Built-in Ladder Resistance (ON/OFF)