D Advanced, Integrated Speech Synthesizer
for High-Quality Sound.
D Operates up to 12.32 MHz (Performs up to
D Single Chip Solution For Up to 37 Minutes
of Speech (Using 2.36 Mb of Onboard
Program Plus Data ROM)
D Supports High-Quality Synthesis
Algorithms Such as MELP, CELP, LPC,
ADPCM, and Polyphonic Music
D Simultaneous Speech Plus Music
D Very Low-Power Operation, Ideal For
D Low-Voltage Operation, Sustainable by
D Reduced Power Stand-By Modes, Less
Than 10 µA in Deep-Sleep Mode
SPSS025B– FEBRUARY 2000 – REVISED FEBRUARY 2001
D 640-Word RAM
D 32 I/O Pins Consisting of
– 24 General-Purpose Bit Configurable I/O
– 8 Inputs With Programmable Pullup
Resistors and a Dedicated Interrupt
D Direct Speaker Driver, 32 Ω (PDM)
D One-bit Comparator With Edge-Detection
D Resistor-Trimmed Oscillator or 32.768 kHz
Crystal Reference Oscillator
D Serial Scan Port for In-Circuit Emulation
D The MSP50C605 Is Sold in Die Form or
100-Pin PJM Package.
D An Emulator Device Is Available in a
Ceramic Package for Development
The MSP50C605 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 MSP50C605 unprecedented speed and computational flexibility compared with previous
devices of its type. The MSP50C605 supports a variety of speech and audio coding algorithms, providing a
range of options with respect to speech duration and sound quality.
The device consists of a micro-DSP core, embedded program, and data memory, and a self-contained clock
generation system. General-purpose periphery is comprised of 32 bits of partially configurable I/O.
The core processor is a general-purpose 16-bit microcontroller with DSP capability. The basic core block
includes computational unit (CU), data address unit, program address unit, two timers, eight level interrupt
processor, and several system and control registers. The core processor gives the MSP50C605 break-point
capability in emulation.
The processor is Harvard type for efficient DSP algorithm execution. It requires separate program and data
memory blocks to permit simultaneous access. The ROM has a protection scheme to prevent third-party
pirating. It is configured in 32K 17-bit words.
The total ROM space is divided into three areas: 1) The lower 2K words are reserved by Texas Instruments for
the purposes of a built-in self-test 2) The upper 30K words are for user program/data 3) Additional 1.83 Mb data
ROM provides data for up to 37 minutes of speech.
The data memory is internal static RAM. The RAM is configured in 640 17-bit words. All memories are designed
to consume minimum power at a given system clock and algorithm acquisition frequency.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright 2001, Texas Instruments Incorporated