HT36B4 Datasheet, PDF (1/38 Pages) Holtek Semiconductor Inc – Music Synthesizer 8-Bit MCU

HT36B4
Music Synthesizer 8-Bit MCU
Technical Document
· Tools Information
· FAQs
· Application Note
Features
· Operating voltage: 2.4V~5.0V
· Operating frequency: 3.58MHz~12MHz
(typ. 11.059MHz)
· 28 bidirectional I/O lines
· Two 16-bit programmable timer/event counters with
overflow interrupts
· Watchdog Timer
· Built-in 8-bit MCU with 208´8 bits RAM
· Built-in 64K´16-bit ROM for program/data shared
· Digital output pins for external DAC
· Single data format with 16 bits digital stereo audio
output
· Two High D/A converter resolution: 16 bits
· Polyphonic up to 16 notes
· Independent pan and volume mix can be assigned to
each sound component
· Sampling rate of 44.1kHz as 11.059MHz for system
frequency
· Eight-level subroutine nesting
· HALT function and wake-up feature to reduce power
consumption
· Bit manipulation instructions
· 16-bit table read instructions
· 63 powerful instructions
· All instructions in 1 or 2 machine cycles
· 48-pin SSOP package
General Description
The HT36B4 is an 8-bit high performance RISC-like
microcontroller specifically designed for music applica-
tions. It provides an 8-bit MCU and a 16 channel
wavetable synthesizer. The program ROM is composed
of both program control codes and wavetable voice
codes, and can be easily programmed.
The HT36B4 has a built-in 8-bit microprocessor which
programs the synthesizer to generate the melody by
setting the special register from 20H~2AH. A HALT fea-
ture is provided to reduce power consumption.
Block Diagram
P A 0~P A 7
P B 0~P B 7
P C 0~P C 7
P D 0~P D 3
O SC1
O SC2
RES
P F0~2
8 - B it
M CU
6 4 K ´ 1 6 - b it
ROM
208´8
RAM
M u ltip lie r /P h a s e
G e n e ra l
1 6 - B it
DAC
1 6 - B it
DAC
VDD
VSS
VDDA
VSSA
RCH
LC H
Rev. 1.00
1
October 18, 2006