HT86XXX Datasheet, PDF (1/28 Pages) Holtek Semiconductor Inc – 8-Bit Voice Synthesizer MCU

HT86XXX
8-Bit Voice Synthesizer MCU
Features
· Operating voltage: 2.4V~5.2V
· Build-in low supply voltage detection circuit
(2.2V or 3.3V)
· System clock: 4MHz~8MHz
· Crystal or RC oscillator for system clock
· 24 I/O pins with 4 shared pins included
· 8K´16-bit program ROM
· 208´8-bit RAM
· One external interrupt input
· Three 16-bit programmable timer counter and over-
flow interrupts
· 12-bit high quality D/A output by transistor or
HT82V733
· Built-in voice ROM in various capacity
· One optional 32768Hz crystal oscillator for RTC time
base (8-bit counter with 3-bit prescaler)
· Watchdog Timer
· 8-level subroutine nesting
· HALT function and wake-up feature reduce power
consumption
· Up to 1ms (0.5ms) instruction cycle with 4MHz (8MHz)
system clock
· Support 16-bit table read instruction (TBLP, TBHP)
· 63 powerful and efficient instructions
· 68-pin PLCC package
Applications
· 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. Low voltage
detection is provided to reset under 2.2V or 3.3V.
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
HT86072
Voice ROM size 1536K-bit
Voice length
72 sec
HT86144
3072K-bit
144 sec
HT86192
4096K-bit
192 sec
Note: * Available in 4Q, 2002
* Voice length is estimated by 21K-bit sampling rate
HT86384
8192K-bit
384 sec
HT86576*
12288K-bit
576 sec
HT86A00*
16392K-bit
768 sec
Rev. 1.00
1
November 1, 2002