HT86XXX
Voice Synthesizer 8-Bit MCU
Technical Document
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Tools Information
FAQs
Application Note
Features
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Operating voltage: 2.4V~5.2V
System clock: 4MHz~8MHz
Crystal or RC oscillator for system clock
23 I/O pins with 4 shared pins included
8K´16-bit program ROM
One optional 32768Hz crystal oscillator for RTC time
base (8-bit counter with 3-bit prescaler)
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Watchdog Timer
8-level subroutine nesting
HALT function and wake-up feature reduce power
consumption
208´8-bit RAM
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Up to 1ms (0.5ms) instruction cycle with 4MHz (8MHz)
system clock
One external interrupt input
Three 16-bit programmable timer counter and over-
flow interrupts
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Support 16-bit table read instruction (TBLP, TBHP)
63 powerful and efficient instructions
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12-bit high quality D/A output by transistor or
HT82V733
HT86072/144/192/384: 28-pin SOP, 100-pin QFP
package
Built-in voice ROM in various capacity
HT86072/144/192: 44-pin QFP package
HT86576/768: 32-pin SOP, 100-pin QFP package
Applications
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Intelligent educational leisure products
Alert and warning systems
High end leisure product controllers
Sound effect generators
General Description
The HT86XXX series are 8-bit high performance
microcontroller with voice synthesizer and tone genera-
tor. The HT86XXX is designed for applications on multi-
ple I/Os with sound effects, such as voice and melody. It
can provide various sampling rates and beats, tone lev-
els, tempos for speech synthesizer and melody genera-
tor. It has a single built-in high quality, D/A output. There
is an external interrupt which can be triggered with fall-
ing edge pulse or falling/rising edge pulse.
The HT86XXX is excellent for versatile voice and sound
effect product applications. The efficient MCU instruc-
tions allow users to program the powerful custom appli-
cations. The system frequency of HT86XXX can be up
to 8MHz under 2.4V and include a HALT function to re-
duce power consumption.
Selection Table
Body
Voice ROM size
Voice length
HT86072
1536K-bit
72 sec
HT86144
3072K-bit
144 sec
19-bit
HT86192
4096K-bit
192 sec
20-bit
HT86384
8192K-bit
384 sec
21-bit
HT86576
12288K-bit
576 sec
21-bit
HT86768
16384K-bit
768 sec
21-bit
Voice ROM address latch
18-bit
Note: * Voice length is estimated by 21K-bit data rate
Rev. 1.80
1
July 14, 2006