General Description

The MSS0271 is a single-chip CMOS LSI demands minimal external components and memorizes voice up to 2.88 seconds (at 6 KHz S.R.) using the MOSEL qualified coding method (MPCM-4). The chip contains most of the necessary circuit like oscillator, PLA, D/A converter, buzzer buffer, control and timing logic. Therefore, it can apply to various voice systems with minimum external parts. Customer speech data will be edited and programmed into PLA by changing one mask during the device fabrication.

Features

■ Single power can operate at 2.4 V through 6 V.

■ Current output can directly drive either buzzer or speaker without a transistor.

■ Built-in Oscillating Resistor.

■ Single section, 2.79 seconds (4380h).

■ Speech with mute (behind) is up to 21.1 seconds (20000h).

■ Repeat function that can repeat up to 8 times.

■ To turn on LED in sink connection.

■ Automatic power down.

■ CDS interface is provided.