HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 533

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

15.1 Overview
The H8/3048 Series includes a 10-bit successive-approximations A/D converter with a selection of
up to eight analog input channels.
When the A/D converter is not used, it can be halted independently to conserve power. For details
see section 20.6, Module Standby Function.
15.1.1 Features
A/D converter features are listed below.
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10-bit resolution
Eight input channels
Selectable analog conversion voltage range
The analog voltage conversion range can be programmed by input of an analog reference
voltage at the V
High-speed conversion
Conversion time: maximum 7.4 µs per channel (with 18 MHz system clock)
Two conversion modes
Single mode: A/D conversion of one channel
Scan mode: continuous conversion on one to four channels
Four 16-bit data registers
A/D conversion results are transferred for storage into data registers corresponding to the
channels.
Sample-and-hold function
A/D conversion can be externally triggered
A/D interrupt requested at end of conversion
At the end of A/D conversion, an A/D end interrupt (ADI) can be requested.
REF
pin.
Section 15 A/D Converter
523