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Texas Instruments TMS320F28066PZT
- Part No.:
- TMS320F28066PZT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
TMS320F28066PZT.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,357
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Product details
Overview
TMS320F28066PZT from Texas Instruments is a 90-MHz C28x-core real-time microcontroller with integrated FPU, CLA, and 12-bit 3.46-MSPS ADC, designed for closed-loop motor control and digital power conversion in industrial inverters and EV charging modules.
For engineers reviewing the TMS320F28066PZT datasheet, TMS320F28066PZT pinout, TMS320F28066PZT application, or TMS320F28066PZT equivalent, key selection criteria include ePWM channel count (14), HRPWM capability (7 channels), on-chip flash size (64 KB), operating temperature range (–40°C to 105°C), and LQFP-100 package compatibility.
Technical Context
The TMS320F28066PZT implements a Harvard architecture C28x CPU with atomic instruction execution and unified memory mapping, paired with a dedicated 32-bit floating-point CLA that offloads real-time control law computation independently of the main core. Its peripheral set includes dual-sample-and-hold ADC with ratio-metric reference support and analog comparators routed directly to ePWM trip zones.
It integrates six-channel DMA for zero-cycle data movement between peripherals and memory, supports dual internal oscillators and external crystal input, and features three 32-bit CPU timers plus PIE interrupt expansion for deterministic low-latency response across all control peripherals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed/floating-point processor running at 90 MHz (11.11-ns cycle time) |
| Memory | 64 KB on-chip Flash (16-bit word), 50 KB SARAM, 1 KB OTP ROM, and 32 KB Boot ROM |
| ADC | 12-bit dual-sample-and-hold with 3.46 MSPS throughput and up to 12 input channels |
| ePWM Channels | 14 total channels across 7 ePWM modules, including 7 high-resolution PWM (HRPWM) outputs |
| Package & Temp | 100-pin LQFP (PZ), rated for –40°C to 105°C industrial operation |
| Peripherals | 3 eCAP, 4 HRCAP, 2 eQEP, 2 SPI, 2 SCI/UART, 1 I²C, 1 eCAN, 1 McBSP, no USB |
| Security | 128-bit password protection for Flash/SARAM/OTP and code security module (CSM) |
Pinout & Package
Package: 100-pin Low-Profile Quad Flatpack (LQFP), body size 14.0 mm × 14.0 mm, exposed thermal pad (PowerPAD™) requiring PCB ground connection for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GPIO0–GPIO54 | General-purpose I/O with multiplexing | 54 pins support configurable functions including EPWMxA/B, ECAP, eQEP, SPI, UART, I²C, CAN, and analog inputs |
| VDD, VSS, VDDIO, VDDA, VSSA | Power supply domains | Separate analog (VDDA/VSSA), I/O (VDDIO), and core (VDD/VSS) rails enable noise isolation for ADC and PWM timing |
| ADCINA0–ADCINA7, ADCINB0–ADCINB7 | Analog input channels | 12-channel 12-bit ADC with dual sample-and-hold; supports simultaneous sampling and ratio-metric VREFHI/VREFLO referencing |
| EPWM1A–EPWM7B | PWM output terminals | 14-channel enhanced PWM with independent 16-bit timers, dead-band generation, and HRPWM edge modulation |
| X1/X2 | Crystal oscillator interface | Supports external crystal (1–20 MHz) or single-ended clock input; internal oscillators eliminate need for external components |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Native single-precision floating-point arithmetic accelerates C/C++ motor control algorithms without software emulation overhead |
| Programmable Control Law Accelerator (CLA) | Dedicated 32-bit floating-point coprocessor executes control loops (e.g., FOC, PID) concurrently with main CPU, reducing latency by up to 50% |
| High-Resolution PWM (HRPWM) | 7 channels support sub-nanosecond duty-cycle resolution for precise gate drive timing in SiC/GaN-based power stages |
| Analog Comparators + DACs | Three integrated comparators with 10-bit DAC references enable fast overcurrent protection and direct ePWM trip-zone triggering |
| On-chip Temperature Sensor | Monitors die temperature for thermal derating and system-level fault management without external sensors |
Applications
| Industrial Motor Drives | Solar Power Conversion |
|---|---|
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase PMSM/BLDC motors in HVAC compressors and pump systems. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, ADC sampling synchronization, and 14-channel PWM generation with <100-ns dead-time control. Use Value: Enables >98% efficiency and <1% torque ripple using hardware-accelerated CLA and HRPWM, reducing BOM cost vs. dual-IC solutions. | Use Scenario: MPPT and DC-AC inversion in string inverters and solar power optimizers. IC Role / Device Role / Timing Role: Simultaneous sampling of DC-link voltage/current and grid-synchronized PWM generation with adaptive phase-lock loop (PLL) tracking. Use Value: 3.46-MSPS ADC with dual S/H supports 20-kHz control loop bandwidth; eQEP interfaces directly with encoder feedback for position-aware MPPT. |
| EV Charging Stations | Energy Storage PCS |
Use Scenario: Bidirectional AC-DC and DC-DC conversion in Level 2 and DC fast-charging power modules. IC Role / Device Role / Timing Role: Dual-loop control of isolated LLC resonant converters and active rectifiers, coordinated via CLA and main CPU. Use Value: Integrated eCAN and dual SCI enable communication with BMS and grid interface; 64 KB Flash supports firmware updates for evolving charging protocols. | Use Scenario: Grid-tied battery energy storage systems requiring precise reactive power injection and harmonic compensation. IC Role / Device Role / Timing Role: Execution of harmonic current injection algorithms using VCU-accelerated complex math and synchronized 12-channel ADC sampling. Use Value: Viterbi/CRC unit enables real-time grid impedance monitoring and IEEE 1547-compliant anti-islanding detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28067PZT | 16 ePWM channels, 128 KB Flash, same CLA/FPU/peripheral set | Higher PWM count and memory support more complex multi-axis or dual-inverter topologies | Select when expanding from single to dual motor control or adding communications stacks (e.g., Modbus over SCI) |
| TMS320F280049CPZT | Newer generation: 100-MHz C28x, CLB, enhanced ADC (16-bit, 4 MSPS), 256 KB Flash | Supports higher-resolution current sensing and configurable logic for custom protection schemes | Choose for new designs targeting extended lifecycle, higher precision, or future-proofing beyond F2806x roadmap |
Compared with TMS320F28067PZT, the TMS320F28066PZT offers reduced Flash and ePWM count for cost-sensitive single-motor drives; compared with TMS320F280049CPZT, it provides proven industrial qualification and lower entry cost but lacks CLB and advanced ADC features.
Availability
TMS320F28066PZT is available at Aetrix Electronics and suitable for industrial motor drives, solar power conversion, and EV charging station power modules requiring stable component supply and long-term manufacturing continuity.
Supply support for TMS320F28066PZT 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 company specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and consumer applications.
The TMS320F28066PZT belongs to TI's C2000™ real-time MCU product line, engineered specifically for deterministic control loop execution in power electronics, motor drives, and digital power systems.
FAQ
What is the maximum operating frequency of the TMS320F28066PZT?
The TMS320F28066PZT operates at a maximum CPU frequency of 90 MHz, delivering a 11.11-ns instruction cycle time. This speed is sustained across its full industrial temperature range (–40°C to 105°C) and supports real-time execution of complex control algorithms such as field-oriented control and predictive current regulation without compromising loop bandwidth.
Does the TMS320F28066PZT include a floating-point unit (FPU)?
Yes, the TMS320F28066PZT integrates a native single-precision floating-point unit (FPU) that accelerates mathematical operations used in motor control and digital power algorithms. This eliminates reliance on fixed-point approximations and reduces development time for C/C++ implementations of trigonometric, exponential, and division-intensive functions within the TMS320F28066PZT firmware.
How many PWM channels does the TMS320F28066PZT support?
The TMS320F28066PZT supports 14 enhanced PWM (ePWM) channels distributed across seven ePWM modules. Seven of these channels are high-resolution PWM (HRPWM) capable, enabling sub-nanosecond duty-cycle adjustment critical for SiC and GaN gate driver timing in high-frequency power converters.
Is USB functionality available on the TMS320F28066PZT?
No, USB functionality is not available on the TMS320F28066PZT. According to TI's official device comparison table, USB 2.0 is only present on TMS320F2806xU, TMS320F2806xM, and TMS320F2806xF variants. The TMS320F28066PZT retains two SCI/UART, two SPI, one I²C, and one eCAN interface for host and peripheral communication.
What is the Flash memory capacity of the TMS320F28066PZT?
The TMS320F28066PZT contains 64 KB of on-chip Flash memory organized as 16-bit words. This capacity supports typical real-time control firmware for single-axis motor drives and digital power applications while allowing space for bootloader, safety routines, and field-upgradable parameters - all protected by the device's 128-bit code security module.
TMS320F28066PZT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-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:
- 54
- Program Memory Size:
- 256KB (128K x 16)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 34K x 16
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 1.995V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F28066PZT FAQ
1.How can I place an order for TMS320F28066PZT through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28066PZT 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 TMS320F28066PZT reliable?
The price and inventory of TMS320F28066PZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28066PZT is usually 5 days.
3.What payment methods are accepted for TMS320F28066PZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28066PZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28066PZT?
TMS320F28066PZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28066PZT 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 TMS320F28066PZT?
For technical support, including TMS320F28066PZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28066PZT requirements.
6.How does Aetrix verify that TMS320F28066PZT is sourced from the original manufacturer or authorized distributors?
All TMS320F28066PZT 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 TMS320F28066PZT meets industry standards.
7.What is the process for return or replacement of TMS320F28066PZT?
All TMS320F28066PZT units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28066PZT, 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 TMS320F28066PZT part is unused and in its original packaging.
Return procedure for TMS320F28066PZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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