HT37A20 Holtek Semiconductor, HT37A20 Datasheet

HT37A20

Manufacturer Part Number

HT37A20

Description

(HT37A20 - HT37A70) 8-Channel Music Synthesizer MCU

Manufacturer

Holtek Semiconductor

Datasheet

1.HT37A20.pdf (85 pages)

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Technical Document

Features

General Description

The device is an 8-bit high performance RISC architec-

ture microcontroller specifically designed for various

Music and ADPCM applications. It provides an 8-bit

MCU and 8-channel Wavetable synthesizer. It has a in-

Selection Table

Most features are common to all devices, the main feature distinguishing them are Program Memory capacity, I/O

count, A/D resolution, DAC output, R2F input and package types. The following table summarizes the main features of

each device.

Rev. 1.00

HT37A20

HT37A30

HT37A40

HT37A50

HT37A60

HT37A70

Part No.

Tools Information

FAQs

Application Note

Operating voltage:

3.6V~5.5V (HT37A70/60)

3.3V~5.5V (HT37A50/40)

2.4V~5.5V (HT37A30/20)

Operating frequency: 11.059MHz

Oscillation modes for the Oscillator clock

1-pin RC oscillation typ. 11.059MHz

Built-in 8-bit MCU (HT-8) with 320 8 bits RAM

Built-in 32K 16-bits to 256K 16-bits ROM for

program/data shared

Eight-level subroutine nesting

Two 8 bit timer and one 16 bit timer

Watchdog timer

Power-down and Wake-up features for power saving

operation

OSC

HA0075E MCU Reset and Oscillator Circuits Application Note

: Crystal (11.059MHz)

2.4V~

5.5V

3.3V~

5.5V

3.6V~

5.5V

VDD

Channel

6+2

11.059

OSC

MHz

8-Channel Music Synthesizer MCU

128K 16bit

192K 16bit

256K 16bit

32K 16bit

64K 16bit

96K 16bit

Program

ROM

320 8bit

RAM

HT37A70/60/50/40/30/20

I/O

tegrated 8-bit micro controller which controls the syn-

thesizer to generate the melody by setting the special

power consumption.

16-bit table read instructions for any bank/page read

Support 16 to 28 bidirectional I/O lines

Integrated 2-ch stereo or 1-ch mono 16-bit DAC

converter

Integrated power Amplifier

Integrated 8-channel 12-bit A/D converter

Eight channel polyphonic synthesizer

Low voltage reset (Tolerance

External interrupt INT

External 2 Timer clock input

4 or 8 touch switch input

ADPCM decoder

Bit manipulation instructions

63 powerful instructions

All instructions in 1 or 2 machine cycles

2ch-Stereo

1ch-mono

D/A

Power

AMP

CR/F

2.2V/

3.3V

3.0V

3.3V

LVR

10%)

12-bit 8

February 17, 2009

ADC

20/28SOP

Package

48SSOP

80LQFP

28SOP,

64QFP,

Types

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