HT46R064G/065G/0662G
Enhanced A/D Type 8-Bit OTP MCU with OPA
Analog to Digital Converter
The need to interface to real world analog signals is a common requirement for many electronic
systems. However, to properly process these signals by a microcontroller, they must first be converted
into digital signals by A/D converters. By integrating the A/D conversion electronic circuitry into the
microcontroller, the need for external components is reduced significantly with the corresponding
follow-on benefits of lower costs and reduced component space requirements.
A/D Overview
The devices contain a multi-channel analog to digital converter which can directly interface to external
analog signals, such as that from sensors or other control signals and converts these signals directly
into a 12-bit digital value.
Part No.
Input Channels Conversion Bits
Input Pins
PC4~PC5
PC2~PC5
HT46R064G
HT46R065G
2
4
12
12
PC2~PC5
PD4~PD7
HT46R0662G
8
12
The accompanying block diagram shows the overall internal structure of the A/D converter, together
with its associated registers.
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A/D Converter Structure
Rev. 1.00
67
March 3, 2011
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
