Section 12 A/D Converter; Overview; Features - Renesas H8 Series Hardware Manual

8-bit single-chip microcomputer

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The H8/3644 Group includes on-chip a resistance-ladder-based successive-approximation analog-

to-digital converter, and can convert up to 8 channels of analog input.

The A/D converter has the following features.

• 8-bit resolution

• Eight input channels

• Conversion time: approx. 12.4 µs per channel (at 5-MHz operation)

• Built-in sample-and-hold function

• Interrupt requested on completion of A/D conversion

• A/D conversion can be started by external trigger input

Section 12 A/D Converter

Rev. 6.00 Sep 12, 2006 page 345 of 526

REJ09B0326-0600