HT46R12A
A/D Type 8-Bit OTP MCU
Technical Document
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Features
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Operating voltage:
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Power-down and wake-up functions for reduced
f
SYS
= 4MHz: 2.2V~5.5V
f
SYS
= 8MHz: 3.3V~5.5V
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17 bidirectional I/O lines
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Two 8-bit programmable timer/event counters with
power consumption
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Up to 0.5ms instruction cycle with 8MHz system
clock at V
DD
= 5V
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8-level subroutine nesting
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4 channel 9-bit resolution A/D converter
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Two comparators with interrupt function
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Bit manipulation instruction
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14-bit table read instruction
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63 powerful instructions
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Instructions executed in one or two machine cycles
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Low voltage reset function
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24-pin SKDIP/SOP package types available
overflow interrupt and 7-stage prescaler
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Single 8-bit programmable pulse generator - PPG -
output channel with prescaler and 8-bit programma-
ble timer counter, supporting both active low or
active high output
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Integrated crystal and RC oscillator
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Watchdog Timer
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2048´14 program memory
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88´8 data memory RAM
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PFD for audio generation
General Description
The HT46R12A is an 8-bit, high performance, RISC ar-
chitecture microcontroller devices specifically designed
for A/D applications that interface directly to analog sig-
nals, such as those from sensors.
The advantages of low power consumption, I/O flexibil-
ity, programmable frequency divider, timer functions,
oscillator options, multi-channel A/D Converter, HALT
and wake-up functions, provide the device with the ver-
satility to meet the requirements of wide range of A/D
application possibilities such as external analog sensor
signal processing.
With the inclusion of two comparators and a fully inte-
grated programmable pulse generator, the device is par-
ticularly suitable for use in products such as induction
cookers and other home appliance application areas.
Rev. 1.01
1
December 29, 2008
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
