Overview
The TMS320F28055PNT is a 32-bit microcontroller from Texas Instruments, part of the C2000™ real-time control MCU family. This device is optimized for processing, sensing, and actuation in real-time control applications. It features the high-efficiency TMS320C28x CPU, a Programmable Control Law Accelerator (CLA), and highly integrated control peripherals, making it suitable for applications such as industrial motor drives, solar inverters, digital power systems, and automotive control systems.
Key Specifications
| Specification | Value |
|---|---|
| Core Processor | TMS320C28x, 32-bit |
| Operating Frequency | 60 MHz (16.67-ns cycle time) |
| Memory | 128 KB Flash, SARAM, Message RAM, OTP, CLA Data ROM, Boot ROM, Secure ROM |
| Package | 80-pin LQFP (PN) |
| Operating Temperature Range | –40°C to 105°C (T option), –40°C to 125°C (S and Q options) |
| Supply Voltage | Single 3.3-V supply |
| GPIO Pins | Up to 42 individually programmable, multiplexed GPIO pins |
| Analog-to-Digital Converter (ADC) | One 12-bit ADC |
| Programmable Gain Amplifiers (PGAs) | Up to four PGAs |
| Communication Interfaces | CAN, I2C, SPI, SCI (UART/USART) |
Key Features
- High-efficiency 32-bit CPU with 60 MHz (16.67-ns cycle time) and support for 16 × 16 and 32 × 32 Multiply and Accumulate (MAC) operations
- Programmable Control Law Accelerator (CLA) with 32-bit floating-point math accelerator, executing code independently of the main CPU
- Dual-zone security module with 128-bit security key and lock to protect secure memory blocks
- Harvard bus architecture, atomic operations, and fast interrupt response and processing
- Unified memory programming model and code-efficient design for C/C++ and Assembly
- Low device and system cost with single 3.3-V supply, no power sequencing requirement, integrated power-on reset and brownout reset, and low power consumption
- Clocking options including two internal zero-pin oscillators, on-chip crystal oscillator, and external clock input
- Advanced debug features with analysis and breakpoint functions, and real-time debug through hardware
- Analog Front End (AFE) with up to seven comparators, up to three integrated DACs, one buffered reference DAC, up to four PGAs, and up to four digital filters
- Enhanced control peripherals including ePWM, eCAP, and eQEP modules
Applications
- Industrial motor drives
- Solar inverters and digital power systems
- Electrical vehicles and transportation systems
- Motor control and sensing applications
- Air conditioner outdoor unit control
- Door operator drive control
- Inverter and motor control modules
- AC drive control and BLDC motor drives
Q & A
- What is the core processor of the TMS320F28055PNT?
The core processor is the TMS320C28x, a 32-bit CPU.
- What is the operating frequency of the TMS320F28055PNT?
The operating frequency is 60 MHz with a cycle time of 16.67 ns.
- What type of package does the TMS320F28055PNT come in?
The device comes in an 80-pin LQFP (PN) package.
- What are the key features of the Programmable Control Law Accelerator (CLA)?
The CLA is a 32-bit floating-point math accelerator that executes code independently of the main CPU.
- What security features does the TMS320F28055PNT have?
The device includes a dual-zone security module with a 128-bit security key and lock to protect secure memory blocks.
- What are the communication interfaces available on the TMS320F28055PNT?
The device supports CAN, I2C, SPI, and SCI (UART/USART) interfaces.
- What is the Analog Front End (AFE) and what does it include?
The AFE includes up to seven comparators, up to three integrated DACs, one buffered reference DAC, up to four PGAs, and up to four digital filters.
- What are some of the advanced debug features of the TMS320F28055PNT?
The device includes analysis and breakpoint functions, and real-time debug through hardware.
- What are the typical applications of the TMS320F28055PNT?
Typical applications include industrial motor drives, solar inverters, electrical vehicles, and motor control systems.
- What is the operating temperature range of the TMS320F28055PNT?
The operating temperature range is –40°C to 105°C (T option), and –40°C to 125°C (S and Q options).
