HT83R074 Datasheet, PDF (1/38 Pages) Holtek Semiconductor Inc – Q-Voice

HT83R074
Q-Voice^TM
Technical Document
· Tools Information
· FAQs
· Application Note
Features
· Operating voltage: 2.4V~5.2V
· Up to 1ms (0.5ms) instruction cycle with 4MHz (8MHz)
system clock
· System clock: 4MHz~8MHz (2.4V)
· Crystal or RC oscillator for system clock
· 12 I/O pins
· 2K´15 program ROM
· 80´8 RAM
· 1536K voice ROM size
· 72 sec voice length
· Two 8-bit programmable timer counter with 8-stage
prescaler and one time base counter
· Watchdog Timer
· 4-level subroutine nesting
· HALT function and wake-up feature reduce power
consumption
· PWM circuit direct drive speaker or output by
transistor
· 28-pin SOP package
Applications
· Intelligent educational leisure products
· Alert and warning systems
· Sound effect generators
General Description
The HT83R074 is 8-bit high performance microcontroller
with voice synthesizer and tone generator. The
HT83R074 is designed for applications on multiple I/Os
with sound effects, such as voice and melody. It can pro-
vide various sampling rates and beats, tone levels, tem-
pos for speech synthesizer and melody generator.
The HT83R074 is excellent for versatile voice and
sound effect product applications. The efficient MCU in-
structions allow users to program the powerful custom
applications. The system frequency of HT83R074 can
be up to 8MHz under 2.4V and include a HALT function
to reduce power consumption.
Rev. 1.00
1
May 17, 2007