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HT36A3 Datasheet

  • HT36A3

  • 8-Bit Music Synthesizer MCU

  • 11頁

  • HOLTEK

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HT36A3
8-Bit Music Synthesizer MCU
Features
路
Operating voltage: 2.4V~5.0V
路
Operating frequency: 3.58MHz~12MHz (typ. 8MHz)
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20 bidirectional I/O lines
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Two 8-bit programmable timer with 8 stage prescaler
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Watchdog Timer
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Built-in 8-bit MCU with 208麓8 bits RAM
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Built-in 32K麓16-bit ROM for program/data shared
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Mono output
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High D/A converter resolution: 16 bits
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Polyphonic up to 8 notes
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Independent pan and volume mix can be assigned to
路
Sampling rate of 25kHz as 6.4MHz for system
frequency
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Eight-level subroutine nesting
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HALT function and wake-up feature to reduce power
consumption
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Bit manipulation instructions
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16-bit table read instructions
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63 powerful instructions
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All instructions in 1 or 2 machine cycles
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28-pin SOP, 48-pin SSOP package
each sound component
General Description
The HT36A3 is an 8-bit high performance RISC-like
microcontroller specifically designed for music applica-
tions. It provides an 8-bit MCU and a 8 channel
wavetable synthesizer. The program ROM is composed
of both program control codes and wavetable voice
codes, and can be easily programmed.
The HT36A3 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 3
O S C 1
O S C 2
R E S
8 - B it
M C U
3 2 K
麓
1 6 - b it
R O M
2 0 8
麓
8
R A M
V D
V S
V D
V S
S
D
D A
S A
M u ltip lie r /P h a s e
G e n e ra l
1 6 - B it
D A C
A U D
Rev. 1.00
1
June 30, 2003

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