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Texas Instruments TMS320F28065PNT
- Part No.:
- TMS320F28065PNT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
TMS320F28065PNT.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,289
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Product details
Overview
TMS320F28065PNT from Texas Instruments is a 90-MHz C28x-core real-time microcontroller with integrated FPU, CLA, and VCU, designed for closed-loop motor control and digital power conversion. It delivers 11.11-ns instruction cycle time, 128KB flash, 50KB RAM, 16-channel 12-bit ADC at 3.46 MSPS, and 16 ePWM channels (8 HRPWM-capable), targeting inverter gate drive and servo position feedback systems.
For engineers reviewing the TMS320F28065PNT datasheet, TMS320F28065PNT pinout, TMS320F28065PNT application, or TMS320F28065PNT equivalent, key selection criteria include its 80-pin LQFP package, single 3.3-V supply operation, on-chip temperature sensor, 3 analog comparators with DACs, and eCAN/USB/SCI/SP/I²C serial interfaces for system-level integration.
Technical Context
The TMS320F28065PNT implements a Harvard architecture C28x CPU with atomic operations and unified memory programming, enabling deterministic real-time execution. Its CLA executes floating-point math independently of the CPU, accelerating control law updates without interrupt latency.
Peripheral integration includes dual-sample-and-hold ADC with ratio-metric reference support, ePWM modules with dual-edge modulation capability, and trip-zone inputs for hardware fault protection. The device supports IEEE 1149.1 JTAG boundary scan and features two internal zero-pin oscillators plus external crystal input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed/floating-point core with 90-MHz operation (11.11-ns cycle) |
| Memory | 128KB on-chip flash (secure, sector-erasable), 50KB RAM (dual-access SARAM), 1KB OTP |
| ADC | 12-bit dual-sample-and-hold, 16-channel, 3.46 MSPS max throughput, 289-ns conversion time |
| ePWM | 8 modules → 16 PWM outputs; 8 support high-resolution (HRPWM) for <150-ps duty-cycle resolution |
| Communication | 2× SCI/UART, 2× SPI, 1× I²C, 1× eCAN, 1× McBSP, 1× USB 2.0 (full-speed device/host) |
| Package & Temp | 80-pin LQFP (PN), 12 × 12 mm body, rated –40°C to 105°C (T-grade) |
| Power | Single 3.3-V supply; integrated voltage regulator; no power sequencing required |
Pinout & Package
Package: 80-pin Low-Profile Quad Flatpack (LQFP), 12.0 mm × 12.0 mm body, 0.5-mm pitch, exposed thermal pad (non-electrical ground connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GPIO0–GPIO54 | Programmable I/O | 54 multiplexed pins supporting ePWM, eCAP, eQEP, SPI, SCI, I²C, CAN, USB, ADC inputs, comparator outputs, and trip-zone inputs |
| VDD, VSS, VDDIO, VDDA, VSSA | Power domains | Separate analog/digital I/O/core supplies enable noise isolation; VDDA powers ADC/comparators; VDDIO sets GPIO logic level |
| ADCINA0–ADCINA7, ADCINB0–ADCINB7 | Analog inputs | Dual 8-channel ADC banks (A/B) with shared sample-and-hold; supports simultaneous sampling across both banks |
| EPWM1A–EPWM8B | PWM outputs | 16 dedicated PWM output pins; 8 support HRPWM mode for ultra-fine dead-time and phase control |
| X1/X2 | Crystal interface | External crystal oscillator input (4–20 MHz); supports direct clock injection via XCLKIN pin |
| TRST/TCK/TMS/TDI/TDO | JTAG debug | IEEE 1149.1-compliant test access port for emulation, boundary scan, and secure firmware loading |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Native single-precision arithmetic accelerates C/C++ math-intensive control algorithms without software emulation overhead |
| Programmable Control Law Accelerator (CLA) | Independent 32-bit floating-point coprocessor offloads PID, observer, and field-oriented control loops from main CPU |
| Viterbi/Complex Math/CRC Unit (VCU) | Hardware acceleration for complex multiply, Viterbi decoding, and CRC-16/32 computation used in communication and safety protocols |
| Security module | 128-bit password-protected code security with lock/unlock states prevents unauthorized readback and reverse-engineering of firmware |
| High-resolution PWM | 8 HRPWM channels achieve <150-ps resolution via digital dithering-enabling precise dead-time compensation in SiC/GaN inverters |
| Analog comparator subsystem | 3 comparators with integrated 10-bit DACs; outputs directly route to ePWM trip-zone inputs for sub-microsecond overcurrent shutdown |
Applications
| Motor Drive Control | Solar Inverter Power Stage |
|---|---|
|
Use Scenario: Field-oriented control (FOC) of 3-phase PMSM/BLDC motors in HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, ADC sampling synchronization, and HRPWM generation for gate drivers. Use Value: 90-MHz C28x + FPU + CLA enables <10-µs current loop update; dual-sample-and-hold ADC captures simultaneous phase currents. |
Use Scenario: MPPT and DC-link voltage regulation in string inverters with transformerless topologies. IC Role / Device Role / Timing Role: High-frequency PWM generation, grid-synchronization via eQEP/ECAP, and isolation-coupled fault monitoring. Use Value: eCAN and USB support firmware updates and diagnostics; 16-channel ADC monitors DC input, AC output, and temperature sensors. |
| EV On-Board Charger (OBC) | Industrial Servo Drive |
|
Use Scenario: Bidirectional AC/DC and DC/DC conversion in 6.6-kW OBC modules with GaN switching. IC Role / Device Role / Timing Role: Dual-loop control (PFC + LLC), isolated current sensing, and safety-critical fault response. Use Value: Trip-zone inputs with comparator outputs enable <500-ns overcurrent shutdown; VCU accelerates CRC-based communication integrity checks. |
Use Scenario: Position/velocity/torque control in CNC machine axes using resolver or encoder feedback. IC Role / Device Role / Timing Role: eQEP decoding, HRCAP for high-speed edge detection, and synchronized multi-axis motion profiling. Use Value: 2× eQEP modules support A/B/Z index decoding; 4× HRCAP channels capture nanosecond-level timing events for jitter-free commutation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28069PNT | 100KB RAM, 128KB flash, VCU, CLA, USB, eCAN, same 90-MHz C28x+FPU core | Higher memory and full peripheral set; supports more complex control + comms stacks | Select when >50KB RAM or VCU-accelerated CRC/Viterbi is required for functional safety or communication layers |
| TMS320F280049CPNT | Newer generation: 100-MHz C28x, CLB, enhanced ADC (16-bit, 4-MSPS), larger flash/RAM, improved HRPWM | Supports advanced control (e.g., predictive current control), higher resolution sensing, and longer BOM lifecycle | Preferred for new designs requiring higher performance, CLB-based custom logic, or extended product roadmap support |
Compared with TMS320F28069PNT, the TMS320F28065PNT offers identical core performance but reduced RAM and no VCU-making it optimal for cost-sensitive motor drives where USB/eCAN are unused. Versus TMS320F280049CPNT, it lacks CLB and newer analog enhancements but maintains proven qualification and toolchain compatibility.
Availability
TMS320F28065PNT is available at Aetrix Electronics and suitable for industrial motor drives, solar power optimizers, and EV charging station power modules requiring stable component supply and long-term production continuity.
Supply support for TMS320F28065PNT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in real-time control silicon.
The TMS320F2806x family belongs to TI's C2000™ real-time MCU portfolio, engineered specifically for high-precision closed-loop control in power electronics, motor drives, and renewable energy systems.
FAQ
What is the maximum operating frequency of the TMS320F28065PNT?
The TMS320F28065PNT operates at a maximum CPU frequency of 90 MHz, delivering an instruction cycle time of 11.11 ns. This speed is sustained across the full –40°C to 105°C temperature range under nominal 3.3-V supply conditions, as validated in TI's SPRS698J datasheet Section 7.13.
Does the TMS320F28065PNT include a hardware floating-point unit?
Yes, the TMS320F28065PNT integrates a native single-precision floating-point unit (FPU) that executes IEEE 754-compliant operations directly in hardware-eliminating software emulation overhead and enabling efficient C/C++ implementation of complex control laws like FOC and observers.
How many PWM channels does the TMS320F28065PNT support, and which are high-resolution?
The TMS320F28065PNT supports 16 ePWM output channels across eight modules, with 8 channels capable of high-resolution PWM (HRPWM) mode. HRPWM provides <150-ps duty-cycle resolution via digital dithering-critical for precise dead-time control in SiC/GaN-based inverters.
Is USB functionality available on the TMS320F28065PNT?
No, USB is not implemented on the TMS320F28065PNT. According to TI's Device Comparison Table (SPRS698J, Table 5-1), USB is only present on TMS320F2806xU, F2806xM, and F2806xF variants. The TMS320F28065PNT retains 2× SCI/UART, 2× SPI, 1× I²C, and 1× eCAN for serial communication.
What package type and pin count does the TMS320F28065PNT use?
The TMS320F28065PNT uses an 80-pin Low-Profile Quad Flatpack (LQFP) package, designated "PN" in TI documentation, with 12.0 mm × 12.0 mm body size and 0.5-mm lead pitch. It includes an exposed thermal pad that must be soldered to the PCB ground plane for thermal management.
TMS320F28065PNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- C2000™ C28x Piccolo™
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- C28x
- Core Size:
- 32-Bit Single-Core
- Speed:
- 90MHz
- Connectivity:
- CANbus, I2C, McBSP, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 40
- Program Memory Size:
- 128KB (64K x 16)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 50K x 16
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 1.995V
- Data Converters:
- A/D 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F28065PNT FAQ
1.How can I place an order for TMS320F28065PNT through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28065PNT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TMS320F28065PNT reliable?
The price and inventory of TMS320F28065PNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28065PNT is usually 5 days.
3.What payment methods are accepted for TMS320F28065PNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28065PNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28065PNT?
TMS320F28065PNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28065PNT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TMS320F28065PNT?
For technical support, including TMS320F28065PNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28065PNT requirements.
6.How does Aetrix verify that TMS320F28065PNT is sourced from the original manufacturer or authorized distributors?
All TMS320F28065PNT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TMS320F28065PNT meets industry standards.
7.What is the process for return or replacement of TMS320F28065PNT?
All TMS320F28065PNT units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28065PNT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TMS320F28065PNT part is unused and in its original packaging.
Return procedure for TMS320F28065PNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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