UM3561 Melody Generator DIP-8 IC

Input Supply Voltage: -0.3V ~ +5.0V; Input Voltage Range: Vss-0.3V ~ Vdd+0.3V

Four sounds can be selected; Power-on reset.; Package: 8-pin DIP

Typical 3V operating voltage; A magnetic speaker can be driven by connecting

Operating Ambient Temperature: -10°C ~ +60°C; Storage Temperature: -55°C ~ +125°C

Applications Include:- Alarm; Toy applications

UM3561 is a low-cost, low-power CMOS LSI designed for use in alarm and toy applications. Since the integrated circuit includes oscillator and selector circuits, a compact sound module can be constructed with only a few additional components. The M3561 contains a programmed mask ROM to simulate siren sound. UM3561 includes oscillator and selector circuits, a compact sound module can be constructed with only a few additional components. The UM3561 contains a programmed mask ROM to simulate siren sound. There is a tone generator within UM3561, which is able to generate different tones using the oscillator clock and according to the data given by the ROM. Each data stored in the ROM corresponds to each tone and it can be selected by using the address of the data location. The typical operating voltage of UM3561 is 3V and the Operating Current Idd is 150μA. The output current of UM3561 Io/p 3mA. How to use UM3561 The audio speaker recommended is 8Ω 02.W. The value of R1 and R2 to be used are 240k Ω and 10k Ω respectively. The transistor used is the 2SC9013 transistor. The oscillator circuit is in-built, whose frequency can be generated by connecting just one external resistor to the OSC1 and OSC2. For the selection of different sounds of SEL1 and SEL2 are used. Address of the tone is provided by the Address Counter section of the IC.