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MSP50C614 Datasheet MIXED-SIGNAL PROCESSORS

Manufacturer: Texas Instruments

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General Description

The MSP50C614 is a low-cost, mixed-signal processor that combines a speech synthesizer, general-purpose I/O, onboard ROM, and direct speaker-drive in a single package.

The computational unit utilizes a powerful new DSP which gives the MSP50C614 unprecedented speed and computational flexibility compared with previous devices of its type.

The MSP50C614 supports a variety of speech and audio coding algorithms, providing a range of options with respect to speech duration and sound quality.

Overview

MSP50C614 MIXED-SIGNAL PROCESSOR D Advanced, Integrated Speech Synthesizer for High-Quality Sound.

D Operates up to 12.32 MHz (Performs up to 12 MIPS) D Single-Chip Solution for up to 6.8 Minutes of Speech D External ROM Interface for up to 18.8 Hours of Speech D Supports High-Quality Synthesis Algorithms Such as MELP, CELP, LPC, ADPCM, and Polyphonic Music D Simultaneous Speech Plus Music Capability D Very Low-Power Operation, Ideal for Hand-Held Devices.

D Low-Voltage Operation, Sustainable by Three Batteries D Reduced Power Stand-By Modes, Less Than 10 µA in Deep-Sleep Mode SPSS023C – DECEMBER 1999 – REVISED FEBRUARY 2001 D Contains 64K Byte Words Onboard ROM (2K Words Reserved) D 640-Word RAM D 64 I/O Pins Consisting of – 40 General-Purpose Bit Configurable I/O – 8 Inputs With Programmable Pullup Resistor and Dedicated Interrupt (Key-Scan) – 16 Dedicated Output Pins D Direct Speaker Driver, 32 Ω (PDM) D One-bit Comparator With Edge-Detection Interrupt Service D Resistor-Trimmed Oscillator or 32.

Key Features

  • make the input port especially useful as a key-scan interface. A simple one-bit comparator is also included in the periphery. The comparator is enabled by a control register, and its pin access is shared with two pins in one of the general-purpose I/O ports. Rounding out the MSP50C614 periphery is a built-in pulse-density-modulated DAC (digital-to-analog converter) with direct speaker-drive capability.

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