YM2149 - Software-Controlled Sound Generator

Product Overview

Yamaha

Datasheet Details

Part number	YM2149
Manufacturer	Yamaha
File Size	2.93 MB
Description	Software-Controlled Sound Generator
Datasheet	YM2149 Datasheet
Additional preview pages of the YM2149 datasheet.

Product details

Description

OF PINS I.DA7 ~DAO This is an 8 bit bidirectional data bus which is used for moving data and addresses between the SSG and CPU.In the read and write modes, DA7 ~ DAO corresponds to B7 ~ BO of the register array.In the address mode, DA3 ~ DAO is usde for the register address, and DA7 ~ DA4 is used together with A9 and A8 for the upper address .2. A8 and A9 These are the upper address input pins.A8 has pullup resistance while A9 has pulldown resistance.When the voltage level at A8 while th

Features

5V single power supply.
Easy connection to 8 bit or 16 bit CPU.
Simple connection to external system through 2 sequence 8 bit 1/0 port.
Wide voicing range of 8 octaves.
Smooth attenuation by 5 bit envelope generator.
Built-in 5 bit D/A convertor.
Input of double frequency clock can be handled by built-in clock frequency divider.
TTL compatible level.
Low power consumption (typical 125mW).
40 pin plastic O.

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Published: Jun 24, 2005 |