3069RF-ZTAT Datasheet, PDF (585/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

Section 16 D/A Converter
16.1 Overview
The H8/3069R includes a D/A converter with two channels.
16.1.1 Features
D/A converter features are listed below.
• Eight-bit resolution
• Two output channels
• Conversion time: maximum 10 µs (with 20-pF capacitive load)
• Output voltage: 0 V to V_REF
• D/A outputs can be sustained in software standby mode
16.1.2 Block Diagram
Figure 16.1 shows a block diagram of the D/A converter.
Module data bus
Internal
data bus
V_REF
AV_CC
DA ₀
DA ₁
AV_SS
8-bit D/A
[Legend]
DACR: D/A control register
DADR0: D/A data register 0
DADR1: D/A data register 1
DASTCR: D/A standby control register
Control circuit
Figure 16.1 D/A Converter Block Diagram
Rev. 5.0, 09/04, page 563 of 978