Part Number: TMS320F28066PNT

Manufacturer: Microchip Technology

Description: IC MCU 8BIT 14KB FLASH 28SPDIP

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of TMS320F28066PNT

Datasheet  TMS320F28066PNT datasheet
Category Integrated Circuits (ICs)
Family Embedded – Microcontrollers
Manufacturer Texas Instruments
Series C2000? C28x Piccolo?
Packaging Tray
Part Status Active
Core Processor C28x
Core Size 32-Bit
Speed 90MHz
Connectivity CAN, I2C, McBSP, SCI, SPI, UART/USART
Peripherals Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O 40
Program Memory Size 256KB (128K x 16)
Program Memory Type FLASH
RAM Size 34K x 16
Voltage – Supply (Vcc/Vdd) 1.71 V ~ 1.995 V
Data Converters A/D 12x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 105°C (TA)
Package / Case 80-LQFP
Supplier Device Package 80-LQFP (12×12)


TMS320F28066PNT is a remarkable member of the C2000™ line of 32-bit microcontrollers (MCUs) that are specifically designed for real-time control applications. With its optimized processing, sensing, and actuation capabilities, the TMS320F28066PNT MCU empowers a wide range of industrial applications such as motor drives, solar inverters, digital power systems, electrical vehicles, transportation systems, motor control, and sensing and signal processing. In this comprehensive guide, we will delve into the key features and functionalities of the TMS320F28066PNT, highlighting its performance, compatibility, integrated control peripherals, and analog integration.

Overview of TMS320F28066PNT

32-bit microcontroller (MCU) TMS320F28066PNT proudly represents the renowned C2000TM family. This high-performance MCU offers a variety of capabilities that improve accuracy and efficiency in crucial activities because it is designed and tuned for real-time control applications. Engineers looking to improve closed-loop performance and provide reliable control in industrial environments should use the TMS320F28066PNT due to its sophisticated processing, sensing, and actuation capabilities.

Significance in Real-Time Control Applications

A key component in the world of real-time control applications is the TMS320F28066PNT. Real-time control calls for quick, frequently measured microseconds or even nanoseconds, data processing, and response to external inputs. The peripherals and core of this MCU have been specially tailored to fulfill these strict specifications. For applications where precise control and quick responses are essential, it enables engineers to design responsive and agile systems.

The TMS320F28066PNT’s enhanced closed-loop performance is one of its main advantages. Closed-loop control systems are created to continuously modify the system inputs in response to real-time feedback in order to maintain a desired output. The MCU’s processing capacity and built-in peripherals make it possible to implement complex control algorithms, which leads to smoother and more precise control over a variety of operations.

Diverse Range of Applications

The TMS320F28066PNT is a popular choice for a variety of applications across many industries because of its adaptability. The following are some notable areas where the MCU excels:

  • Industrial motor drives: The TMS320F28066PNT is a top choice for robotics, industrial automation, and automotive applications where electric motor control is required. As a result of its real-time capabilities and optimized control peripherals, the system’s overall performance and energy efficiency are increased.
  • Digital power and solar inverters: Solar inverters are essential for transforming solar energy into usable electrical power in renewable energy systems. The MCU is an appropriate option for precise and effective control of solar inverters due to its high-level analog integration and control capabilities.
  • Electric cars and other modes of transportation For electric vehicle (EV) control, including traction control, battery management, and power electronics, the TMS320F28066PNT is a good choice. Its real-time processing and reliable control characteristics let current electric transportation systems operate safely and effectively.
  • Motor Control: The MCU is used in a variety of motor control systems, including servo drives, stepper motors, and brushless DC motors, in addition to industrial motor drives. Engineers can achieve accurate and smooth motor control in a variety of setups thanks to its cutting-edge control peripherals.
  • Sensing and signal processing: The TMS320F28066PNT’s enhanced analog-to-digital converter (ADC) interface and signal processing capabilities are crucial in applications requiring precise data acquisition and real-time signal processing. It is frequently employed in signal conditioning, sensor interface, and data collecting systems.

Power of C28x Core and Control Law Accelerator (CLA) in TMS320F28066PNT MCU

C28x Core

The C28x core, a potent 32-bit CPU created especially for real-time control applications, is at the heart of the TMS320F28066PNT MCU. The RISC (Reduced Instruction Set Computing) architecture used by the C28x core enables it to process instructions swiftly and effectively. The MCU can handle data quickly thanks to this architecture, a pipelined data channel, and parallel execution units, which makes it the best choice for time-sensitive control tasks.

Key features of the C28x Core

● Floating-Point Unit (FPU)

The C28x core has a hardware FPU, which enables it to execute floating-point arithmetic operations with impressive speed and accuracy. Applications that need intricate mathematical calculations, such as control algorithms and signal processing, require this capacity.

● Single Instruction Multiple Data (SIMD) Support

Due to the MCU’s SIMD functionality, several data items can be processed simultaneously using a single instruction. With this functionality, specific mathematical calculations and data manipulations are greatly sped up, improving overall processing speed.

● Efficient Interrupt Handling

The interrupt controller built into the C28x core effectively and quickly handles interrupts. This guarantees quick responses to outside events, which is essential for real-time control systems.

● Control Law Accelerator (CLA)

The Control Law Accelerator (CLA), a special component of the TMS320F28066PNT MCU, is also present. A separate processing unit called the CLA works in conjunction with the primary C28x core. By essentially outsourcing some of the computing work from the main core, it gives control algorithms more processing power.

Benefits of the Control Law Accelerator (CLA)

● Processing for Dedicated Control

The CLA is tailored for control algorithms, making it more effective at handling control loops and feedback calculations. This specialized processing unit boosts the system’s overall effectiveness and responsiveness by allowing the primary C28x core to concentrate on other crucial activities.

● Dual-Core Architecture

The MCU effectively becomes a dual-core system when the CLA runs concurrently with the main core. This makes it possible for control tasks and other program features to be executed concurrently, guaranteeing that time-sensitive control procedures are not hampered by other processing needs.

● Enhanced Throughput

The MCU achieves higher throughput and can handle more complicated control algorithms without sacrificing real-time performance by splitting the computational load between the C28x core and the CLA.

● Code-Compatibility Feature

Code compatibility with earlier C28x-based code is one of the TMS320F28066PNT MCU’s key benefits. This capability makes it possible for programmers to quickly and easily port their existing code from earlier C28x-based MCUs to the TMS320F28066PNT without requiring major adjustments. The engineers may use their existing codebase and experience while utilizing the improved features and capabilities provided by the TMS320F28066PNT thanks to this backward compatibility, which shortens development time and effort.

● Highly Integrated Control Peripherals

For real-time applications, the TMS320F28066PNT MCU delivers highly integrated control peripherals. The HRPWM module with dual-edge control, which enables frequency modulation for smoother operation, is one of its notable characteristics. Analog comparators included in the MCU with inbuilt 10-bit references make it easier to compare signals and integrate them with ePWM outputs. Additionally, the enhanced ADC interface guarantees reduced overhead and latency, enabling quick and accurate data gathering. Engineers can create sophisticated, effective, and responsive control systems with the help of these potent control peripherals.

● Internal Voltage Regulator and Analog Integration

A built-in voltage regulator allows for single-rail operation on the TMS320F28066PNT MCU, simplifying power supply design and requiring fewer additional components. The precision ADC, analog comparators, and signal conditioning included in the MCU’s high-level analog integration improve system performance while taking up less PCB area. Engineers may now construct effective and dependable control systems with the least amount of complexity and expense because of this integration.


In conclusion, the TMS320F28066PNT MCU stands as a true powerhouse for real-time control applications. With its powerful features, compatibility with previous code, integrated control peripherals, analog integration, and application versatility, it has become a valuable choice for engineers and developers alike. By harnessing the TMS320F28066PNT’s capabilities, professionals can confidently tackle complex control challenges, optimize closed-loop performance, and drive innovation in their respective industries.

Additionally, the TMS320F28066PNT MCU is readily available from ICRFQ, a leading electronic component distributor in China. With our extensive network and reliable supply chain, ICRFQ ensures easy access to this cutting-edge microcontroller for engineers and developers seeking to integrate its powerful features into their real-time control applications.

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