HT86BXX/HT86BRXX
Enhanced Voice 8-Bit MCU
Technical Document
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Application Note
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HA0075E MCU Reset and Oscillator Circuits Application Note
Features
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Operating voltage: 2.2V~5.5V
System clock: 4MHz~8MHz
Crystal and RC system oscillator
16/20/24 I/O pins
External RC oscillator converter
8 capacitor/resistor sensor input
Watchdog timer function
8-level subroutine nesting
Low voltage reset function
8K´16-bit Program Memory
192´8/384´8-bit Data Memory
External interrupt input
Integrated voice ROM with various capacities
Power-down function and wake-up feature reduce
power consumption
Three 8-bit programmable Timers with overflow
interrupt and 8-stage prescaler
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Up to 0.5ms instruction cycle with 8MHz system clock
at VDD= 5V
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12-bit high quality voltage type D/A output
PWM circuit direct audio output
63 powerful instructions
General Description
The Voice type series of MCUs are 8-bit high perfor-
mance microcontrollers which include a voice synthe-
sizer and tone generator. They are designed for
applications which require multiple I/Os and sound ef-
fects, such as voice and melody. The devices can pro-
vide various sampling rates and beats, tone levels,
tempos for speech synthesizer and melody generator.
They also include an integrated high quality, voltage
type DAC output. The external interrupt can be trig-
gered with falling edges or both falling and rising edges.
The devices are excellent solutions for versatile voice
and sound effect product applications with their efficient
MCU instructions providing the user with programming
capability for powerful custom applications. The system
frequency can be up to 8MHz at an operating voltage of
2.2V and include a power-down function to reduce
power consumption.
Rev. 1.60
1
October 20, 2009