TMS320F28027 Piccolo Microcontrollers

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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