16-bit, 5V Fixed-Point DSP - 'NRND' (Not Recommended for New Designs) - Technical Support Limited


This Product is no longer available

Replaced By TMS320C2802 – The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.

TI does not recommend using this part in a new design. This product continues to be in production to support existing customers.


The TMS320C242 device is a member of the TMS320™ DSP family of digital signal processor (DSP) controllers based on the TMS320C2xx generation of 16-bit fixed-point DSPs. This new generation is optimized for digital motor/motion control applications. The DSP controllers combine the enhanced TMS320™ DSP family architectural design of the C2xx core CPU for low-cost, high-performance processing capabilities and several advanced peripherals optimized for motor/motion control applications. These peripherals include the event manager module, which provides general-purpose timers and PWM registers to generate PWM outputs, and a single,10-bit analog-to-digital converter (ADC), which can perform conversion within 1 us.


  • High-Performance Static CMOS Technology
  • Includes the TMS320C2xx Core CPU
    • Object-Compatible With the TMS320C2xx
    • Source-Code-Compatible With TMS320C25
    • Upwardly Compatible With TMS320C5xTM DSP Generation
    • 50-ns Instruction Cycle Time
  • Pin-Compatible With TMS320F241 (64-Pin/68-Pin)
  • Code-Compatible With TMS320F243 and TMS320F241
  • Commercial and Industrial Temperature Available
  • Memory
    • 544 Words x 16 Bits of On-Chip Data/Program Dual-Access RAM (DARAM)
    • 4K Words x 16 Bits of On-chip
      Program ROM
  • Event-Manager Module
    • Eight Compare/Pulse-Width Modulation (PWM) Channels
    • Two 16-Bit General-Purpose Timers With Four Modes, Including Continuous Upand Up/Down Counting
    • Three 16-Bit Full Compare Units With Deadband
    • Three Capture Units (Two With Quadrature Encoder-Pulse Interface Capability)
  • Single 10-Bit Analog-to-Digital Converter (ADC) Module With 8 Multiplexed Input Channels
  • 26 Individually Programmable, Multiplexed General-Purpose I/O (GPIO) Pins
  • Phase-Locked-Loop (PLL)-Based Clock
  • Watchdog (WD) Timer Module
  • Serial Communications Interface (SCI)
  • Five External Interrupts (Power Drive Protection, Reset, NMI, and Two Maskable Interrupts)
  • Three Power-Down Modes for Low-Power Operation
  • Scan-Based Emulation
  • Development Tools Available:
    • Texas Instruments (TI) ANSI C Compiler, Assembler/Linker, and C-Source Debugger
    • Full Range of Emulation Products
      • - Self-Emulation (XDS510TM)
    • Third-Party Digital Motor Control and Fuzzy-Logic Development Support
  • 68-Pin PLCC FN Package
  • 64-Pin QFP PG Package

    TMS320C5x, XDS510, and TMS320 are trademarks of Texas Instruments.

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