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Texas Instruments TMS320F28066PZPS
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- Part No.:
- TMS320F28066PZPS
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-TQFP Exposed Pad
- Datasheet:
-
TMS320F28066PZPS.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 100HTQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,185
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Product details
Overview
TMS320F28066PZPS from Texas Instruments is a 90-MHz C28x-based 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. It delivers 11.11-ns instruction cycle time, 64KB on-chip flash, 50KB RAM, and supports dual-edge HRPWM modulation.
For engineers reviewing the TMS320F28066PZPS datasheet, TMS320F28066PZPS pinout, TMS320F28066PZPS application, or TMS320F28066PZPS equivalent, key selection criteria include ePWM channel count (14), HRCAP module availability (4), USB absence, temperature rating (–40°C to 125°C), and 100-pin HTQFP PowerPAD™ package compatibility.
Technical Context
The TMS320F28066PZPS implements a Harvard architecture C28x CPU with atomic operations and unified memory model, coupled with a dedicated 32-bit floating-point CLA that executes control law code independently of the main CPU. Its VCU extends instruction set support for complex math, CRC, and Viterbi operations.
Peripheral integration includes three eCAP modules, two eQEP interfaces, dual-sample-and-hold ADC with ratio-metric reference support, and analog comparators with internal 10-bit DACs routed directly to ePWM trip zones - enabling fast, deterministic current loop response in servo and BLDC drives.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed/floating-point, 90 MHz (11.11 ns cycle) |
| Flash Memory | 64KB (16-bit word), segmented into 8 sectors for secure firmware updates |
| RAM | 50KB total: 34KB SARAM + 16KB DPSARAM with dual-access capability |
| ADC | 12-bit, 3.46 MSPS, 12-channel input with dual sample-and-hold and ratio-metric VREFHI/VREFLO |
| ePWM Channels | 14 channels (7 modules), including 8 high-resolution PWM outputs for precise timing control |
| HRCAP Modules | 4 independent high-resolution capture units for sub-nanosecond edge timing in position feedback |
| Temperature Range | –40°C to +125°C (S-grade), qualified for industrial and automotive underhood environments |
| Package | 100-pin HTQFP (PZP) with exposed thermal pad (PowerPAD™), 14 mm × 14 mm body |
Pinout & Package
Package: 100-pin HTQFP (PZP) PowerPAD™ thermally enhanced thin quad flatpack, 14.0 mm × 14.0 mm body size, with exposed die pad requiring PCB ground plane connection for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GPIO0–GPIO11, GPIO14–GPIO17, GPIO19–GPIO22, GPIO24–GPIO39, GPIO40–GPIO57 | Multiplexed general-purpose I/O | 54 individually programmable pins supporting ePWM, eCAP, eQEP, SPI, SCI, I²C, CAN, USB (not available on TMS320F28066), and analog comparator outputs |
| VDD, VDDIO, VDDA, VDD3VFL | Power supply rails | Single 3.3-V system supply; separate analog (VDDA) and I/O (VDDIO) domains; internal regulator enables single-rail operation |
| VSS, VSSA | Ground terminals | Digital (VSS) and analog (VSSA) ground planes; PowerPAD™ must be connected to PCB ground plane for thermal dissipation |
| X1/X2 | Crystal oscillator inputs | Supports external crystal (1–20 MHz) or external clock source; internal oscillators eliminate need for external crystal |
| ADCINA0–ADCINA7, ADCINB0–ADCINB7 | Analog input channels | 12 total ADC inputs (6 per bank); dual sample-and-hold allows simultaneous sampling of up to two signals |
| EPWM1A/1B–EPWM7A/7B | PWM output terminals | 14 PWM outputs across 7 modules; HRPWM-capable pins support sub-nanosecond resolution for advanced modulation schemes |
| ECAP1–ECAP3 | Capture input terminals | Three enhanced capture modules for precise measurement of pulse width, period, or duty cycle in encoder or Hall sensor interfaces |
| eQEP1A/eQEP1B/eQEP1I/eQEP1S, eQEP2A/eQEP2B/eQEP2I/eQEP2S | Quadrature encoder interface | Two full eQEP modules supporting A/B/I/S signals for high-speed motor position and speed feedback |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Native single-precision floating-point execution accelerates PID, Clarke/Park transforms, and observer algorithms without software emulation overhead |
| Programmable Control Law Accelerator (CLA) | Independent 32-bit floating-point coprocessor offloads time-critical control loops from main CPU, reducing latency by up to 50% in servo applications |
| High-Resolution PWM (HRPWM) | 8 channels with 150-ps resolution enable dual-edge modulation for improved efficiency in SiC/GaN-based power stages |
| Analog Comparators with DACs | 3 comparators with integrated 10-bit DAC references provide hardware-based overcurrent protection with <100-ns response time |
| Security Module | 128-bit password-protected code security block prevents unauthorized access to flash, RAM, and OTP memory during debug or field operation |
| Thermal Management | On-chip temperature sensor with ±2.5°C accuracy enables real-time thermal derating in motor drive and UPS systems |
Applications
| Industrial Motor Drive | Solar Inverter Control |
|---|---|
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase PMSM/BLDC motors in HVAC compressors and conveyor systems. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation, current sensing, and fault protection within 1-µs interrupt latency. Use Value: 90-MHz C28x core + CLA enables 20-kHz current loop bandwidth with margin for safety monitoring and communication stack overhead. | Use Scenario: MPPT and grid-synchronization control in string and micro-inverters for residential solar installations. IC Role / Device Role / Timing Role: Simultaneous ADC sampling of DC-link voltage/current and AC grid voltage, plus real-time calculation of phase-locked loop (PLL) and PWM duty cycles. Use Value: Dual-sample-and-hold ADC and 12-channel input support concurrent sampling of 6 voltage/current pairs at 3.46 MSPS for accurate MPPT convergence. |
| EV On-Board Charger (OBC) | Uninterruptible Power Supply (UPS) |
Use Scenario: Digital control of bidirectional AC/DC and DC/DC stages in vehicle-mounted OBC modules compliant with SAE J1772. IC Role / Device Role / Timing Role: Coordinated control of interleaved PFC and LLC resonant converters using synchronized ePWM outputs and HRCAP-based zero-voltage switching detection. Use Value: 4 HRCAP modules measure switching node transitions with <500-ps precision, enabling adaptive dead-time optimization and reduced conduction losses. | Use Scenario: Three-phase online UPS with active harmonic filtering and battery charge/discharge management. IC Role / Device Role / Timing Role: Real-time implementation of harmonic compensation algorithms, battery state-of-charge estimation, and seamless transfer logic between line and battery modes. Use Value: VCU unit accelerates FFT-based harmonic analysis, while 64KB flash stores multiple firmware configurations for different load profiles and battery chemistries. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28069PZPS | 128KB flash, 16 ePWM channels, VCU enabled, CLA present | Supports larger control algorithms and additional peripherals (e.g., USB, full 16-channel ADC) | Select when higher memory, full peripheral complement, or VCU-accelerated signal processing is required |
| TMS320F280049CPZPS | Newer C28x+CLA+FPU core, 256KB flash, 16 ePWM, CLB, enhanced analog front-end | Includes configurable logic blocks (CLB) for custom hardware acceleration and improved ADC SNR | Choose for next-generation designs requiring roadmap continuity, higher integration, or CLB-based hardware offload |
Compared with TMS320F28069PZPS and TMS320F280049CPZPS, the TMS320F28066PZPS offers optimized cost-performance balance for established industrial motor control designs where 64KB flash and 14 ePWM channels meet functional requirements without over-provisioning.
Availability
TMS320F28066PZPS is available at Aetrix Electronics and suitable for industrial motor drives, solar power optimizers, and EV on-board charger modules requiring stable component supply across extended product lifecycles.
Supply support for TMS320F28066PZPS 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 delivering analog and embedded processing solutions for industrial, automotive, and consumer applications.
The TMS320F28066PZPS belongs to TI's C2000™ real-time MCU portfolio, engineered specifically for deterministic control of power electronics, motor drives, and energy conversion systems with tight timing constraints.
FAQ
What is the maximum operating frequency of the TMS320F28066PZPS?
The TMS320F28066PZPS operates at a maximum CPU frequency of 90 MHz, corresponding to an 11.11-ns instruction cycle time. This frequency is achieved using the on-chip PLL with either internal oscillators or external crystal input. The device maintains full peripheral functionality and timing specifications across its rated temperature range of –40°C to +125°C.
Does the TMS320F28066PZPS include a USB interface?
No, the TMS320F28066PZPS does not include a USB interface. USB 2.0 is only available on TMS320F2806xU, TMS320F2806xM, and TMS320F2806xF variants. The TMS320F28066PZPS provides two SCI/UART, two SPI, one I²C, one McBSP, and one eCAN interface for serial communication instead.
How many high-resolution PWM channels does the TMS320F28066PZPS support?
The TMS320F28066PZPS supports 8 high-resolution PWM (HRPWM) channels, distributed across its 7 ePWM modules. These channels deliver 150-ps resolution and support dual-edge control for advanced modulation techniques in SiC and GaN power stages, as confirmed in the device comparison table and peripheral description sections.
What is the flash memory capacity of the TMS320F28066PZPS?
The TMS320F28066PZPS integrates 64KB of on-chip flash memory organized as 16-bit words across 8 equal sectors. This capacity supports secure firmware storage, bootloader implementation, and field-upgradable control algorithms while maintaining compatibility with TI's C2000 Flash API and security module protections.
Is the TMS320F28066PZPS pin-compatible with other F2806x family members?
The TMS320F28066PZPS shares the same 100-pin PZP HTQFP package footprint and pinout with TMS320F28069PZPS, TMS320F28067PZPS, and TMS320F28065PZPS. However, peripheral availability differs - for example, TMS320F28066PZPS lacks VCU and has fewer ePWM channels than TMS320F28069PZPS - so firmware and schematic validation is required before substitution.
TMS320F28066PZPS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-TQFP Exposed Pad
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F28066PZPS FAQ
1.How can I place an order for TMS320F28066PZPS through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28066PZPS 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 TMS320F28066PZPS reliable?
The price and inventory of TMS320F28066PZPS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28066PZPS is usually 5 days.
3.What payment methods are accepted for TMS320F28066PZPS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28066PZPS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28066PZPS?
TMS320F28066PZPS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28066PZPS 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 TMS320F28066PZPS?
For technical support, including TMS320F28066PZPS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28066PZPS requirements.
6.How does Aetrix verify that TMS320F28066PZPS is sourced from the original manufacturer or authorized distributors?
All TMS320F28066PZPS 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 TMS320F28066PZPS meets industry standards.
7.What is the process for return or replacement of TMS320F28066PZPS?
All TMS320F28066PZPS units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28066PZPS, 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 TMS320F28066PZPS part is unused and in its original packaging.
Return procedure for TMS320F28066PZPS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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