UM88T-19L / BOWIN ELECTRONIC CO. - Datasheet(PDF) Chat AI

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Part No.	UM88T-19L
Manufacturer	BOWIN
Size	26 Kbytes
Pages	2 pages
Description	Dual-tone Melody Generator

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# UM88T-19L - Dual-tone Melody Generator

## Features

️· 127-note ROM memory
️· Operating Voltage: 1.3V - 3.3V
️· Sound Range: 2.5 octaves, 2 series
️· 16 Tempo options (presto-largo)
️· Double sound sources
️· Digital envelope effect
️· Built-in RC oscillator
️· Power-on reset (melody starts from 1st note)
️· Includes external NPN transistor drive for speaker
️· TO-92 package

## General Description

️· CMOS LSI melody generator IC for telephones and toys.
️· On-chip ROM for dual-tone musical performance.
️· Low power consumption due to CMOS technology.
️· Allows compact melody module construction with few components.

## Electrical Characteristics

Parameter Symbol Min Typ Max Condition

Operating Voltage VDD 1.3V 1.5V 3.3V

Current Consumption IDD - - 1mA Playing with no load

Output Current IO/P 0.6mA 1.5mA -

## Song Series List

Part Number Song Name

UM88T-19L For Alice

## Pin Configuration

️· Pin 1: Melody Output (O/P)
️· Pin 2: Positive Power Supply (VDD)
️· Pin 3: Negative Power Supply (VSS)

## Typical Application Circuits

️· Level Hold Mode for Speaker
️· Level Hold Mode for Piezo Buzzer
️· Recommended Components: C = 1µF, R = 4.7KΩ, Q = 2SC9013

Parameter	Symbol	Min	Typ	Max	Condition
Operating Voltage	VDD	1.3V	1.5V	3.3V
Current Consumption	IDD	-	-	1mA	Playing with no load
Output Current	IO/P	0.6mA	1.5mA	-