TMS320F28027 Piccolo Microcontrollers

By Texas Instruments 82

TMS320F28027 Piccolo Microcontrollers

Texas Instruments' F2802x Piccolo family of microcontrollers provides the power of the C28x core coupled with highly integrated control peripherals in low pin-count devices. This family is code-compatible with previous C28x-based code and also provides a high level of analog integration.

An internal-voltage regulator allows for single-rail operation. Enhancements have been made to the HRPWM to allow for dual-edge control (frequency modulation). Analog comparators with internal, 10-bit references have been added and can be routed directly to control the PWM outputs. The ADC converts from 0 to 3.3 V fixed full-scale range and supports ratio-metric VREFHI / VREFLO references. The ADC interface has been optimized for low overhead and latency.

Features
  • High-efficiency, 32-bit CPU (TMS320C28x)
    • 60 MHz (16.67 ns cycle time)
    • 50 MHz (20 ns cycle time)
    • 40 MHz (25 ns cycle time)
    • 16 x 16 and 32 × 32 MAC operations
    • 16 x 16 dual MAC
    • Harvard bus architecture
    • Atomic operations
    • Fast interrupt response and processing
    • Unified memory programming model
    • Code-efficient (in C/C++ and assembly)
  • Up to 22 individually programmable, multiplexed GPIO pins with input filtering
  • Peripheral interrupt expansion (PIE) block that supports all peripheral interrupts
  • Endianness: little endian
  • Low cost for both device and system:
  • Single 3.3 V supply
  • No power sequencing requirement
  • Integrated power-on and brown-out resets
  • Small packaging, as low as 38-pin available
  • Low power
  • No analog support pins
  • Clocking:
    • Two internal, zero-pin oscillators
    • On-chip crystal oscillator and external clock input
    • Watchdog timer module
    • Missing clock detection circuitry
       

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