The MSP53C691 is a standard slave synthesizer from Texas Instruments that accepts compressed speech data from other microprocessors/microcontrollers and converts it to speech. This allows the TI MSP53C691 to be used with a master microprocessor/microcontroller in various speech-related products such as security systems, learning aids, games, and toys. High quality, low bit-rate coders, easy interface with the master microcontroller, digital gain control, low power sleep mode, and low voltage operation makes this device ideal for products requiring long duration speech, less development cycle times, and peripheral device control through the slave device.