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Texas Instruments TMS320F28066PZPQ
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- Part No.:
- TMS320F28066PZPQ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-TQFP Exposed Pad
- Datasheet:
-
TMS320F28066PZPQ.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 100HTQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,610
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Product details
Overview
TMS320F28066PZPQ 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 automotive-grade (AEC Q100) applications. It delivers 16 ePWM channels (8 HRPWM-capable), 3 eCAP modules, 4 HRCAP modules, dual-sample-and-hold ADC, and on-chip temperature sensing.
For engineers reviewing the TMS320F28066PZPQ datasheet, TMS320F28066PZPQ pinout, TMS320F28066PZPQ application, or TMS320F28066PZPQ equivalent, key selection criteria include AEC Q100 qualification, 100-pin HTQFP PowerPAD™ package, 64KB flash/50KB RAM memory configuration, USB 2.0 host/device support, and CLA-accelerated floating-point control law execution.
Technical Context
The TMS320F28066PZPQ implements a Harvard-architecture C28x CPU with atomic instructions and unified memory mapping, coupled to an independent 32-bit floating-point CLA for parallel real-time control loop execution. Its VCU extends instruction set for complex math, CRC, and Viterbi operations.
It integrates dual 10-bit DACs routed to analog comparators, which feed directly into ePWM trip-zone logic; the 12-bit ADC supports ratio-metric references (VREFHI/VREFLO) and DMA-accessible result registers with 289-ns conversion time across up to 16 channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed/floating-point core at 90 MHz (11.11-ns cycle time), enabling deterministic real-time control loops |
| Memory | 64KB on-chip Flash (secure, sector-erasable), 50KB RAM (dual-access SARAM), 1KB OTP ROM for calibration/security keys |
| ADC | 12-bit dual-sample-and-hold, 3.46 MSPS max throughput, 16-channel input mux, 289-ns conversion time, ratio-metric reference support |
| ePWM | 8 modules → 16 PWM outputs (8 HRPWM-capable), independent 16-bit timers, dual-edge modulation, TZ fault protection |
| CLA | Programmable 32-bit floating-point control law accelerator executing code independently of main CPU, offloading PID/FOC tasks |
| Package & Temp | 100-pin HTQFP PowerPAD™ (PZP), 14.0 mm × 14.0 mm, AEC Q100 qualified for –40°C to +125°C operation |
| Peripherals | 3 eCAP, 4 HRCAP, 2 eQEP, 2 SCI/UART, 2 SPI, 1 I²C, 1 McBSP, 1 eCAN, 1 USB 2.0 (full-speed device/host) |
Pinout & Package
Package: 100-pin HTQFP PowerPAD™ (PZP), thermally enhanced with exposed die pad requiring PCB ground plane connection via thermal vias per TI design guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS, VDDIO, VSSA | Power supply rails | Dedicated analog/digital/IO supply domains; VDDIO supports 3.3-V interface levels; VSSA isolated for ADC reference stability |
| GPIO0–GPIO57 | Multiplexed I/O | 54 individually programmable GPIO pins with input filtering; shared functions include EPWMxA/B, ECAPx, EQEPx, SPI, CAN, USB, I²C, SCI |
| ADCINA0–ADCINA7, ADCINB0–ADCINB7 | Analog inputs | 16-channel 12-bit ADC input pairs with dual S/H; supports simultaneous sampling and ratio-metric referencing |
| VREFHI / VREFLO | ADC reference | External reference inputs defining full-scale range (0–3.3 V); VREFHI may share pin with ADCINA0 on some packages |
| X1 / X2 | Crystal oscillator | Connects to external crystal (or single-ended clock); internal oscillators also available for zero-pin operation |
| USB0DP / USB0DM | USB differential pair | Full-speed USB 2.0 physical layer interface supporting device and host modes; requires 1.5-kΩ pull-up on DP |
| TZ1–TZ3 | Trip zone inputs | Hardware fault inputs triggering immediate ePWM shutdown; sourced from analog comparators or external safety signals |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Native single-precision floating-point arithmetic accelerates C/C++ math-intensive control algorithms without software emulation overhead |
| Programmable Control Law Accelerator (CLA) | Offloads time-critical control loops (e.g., FOC, PID) from main CPU-enables sub-microsecond loop closure with independent interrupt handling |
| High-Resolution PWM (HRPWM) | 8 channels support 150-ps resolution fine adjustment, enabling precise dead-time control and high-frequency switching in SiC/GaN inverters |
| Analog Comparator + DAC Integration | 3 comparators with internal 10-bit DACs generate trip signals directly routed to ePWM TZ inputs-enabling fast overcurrent/overvoltage protection |
| AEC Q100 Qualification | Automotive-grade reliability validated per AEC Q100-004 (HTOL), Q100-011 (ESD), and Q100-006 (TCT) for under-hood and traction inverter applications |
Applications
| EV Charging Station Power Module | Solar String Inverter |
|---|---|
Use Scenario: Bidirectional AC/DC and DC/DC conversion in liquid-cooled EV charging cabinets operating at 1–3 kW per module. IC Role / Device Role / Timing Role: Real-time current/voltage regulation controller managing SiC MOSFET gate timing, phase synchronization, and safety interlocks via TZ inputs. Use Value: CLA-accelerated FOC enables <1-µs current loop update; HRPWM achieves <150-ps dead-time tuning for efficiency gains in 100-kHz+ switching topologies. | Use Scenario: MPPT and grid-synchronization control in residential string inverters with dual-stage (boost + H-bridge) topology and anti-islanding protection. IC Role / Device Role / Timing Role: Primary system controller executing dual-loop control (inner current, outer voltage), ADC-driven MPPT, and eCAN-based communication with optimizer nodes. Use Value: 12-bit 3.46-MSPS ADC captures fast transients during islanding detection; 16-channel analog input supports simultaneous voltage/current sensing across multiple stages. |
| Industrial Servo Drive Control Module | Automotive On-Board Charger (OBC) |
Use Scenario: High-bandwidth position/velocity/torque control in robotic joint actuators using PMSM motors with encoder feedback and field weakening. IC Role / Device Role / Timing Role: Motion controller running position loop (10 kHz), current loop (20 kHz), and commutation logic with hardware-assisted eQEP decoding and HRCAP-based timing capture. Use Value: Dual eQEP modules support resolver or incremental encoder interfaces; 4 HRCAP inputs measure encoder edge jitter <1 ns for <0.01° position accuracy. | Use Scenario: Bi-directional AC/DC and DC/DC conversion in automotive OBC units meeting ISO 15118 and UL 62368-1 requirements. IC Role / Device Role / Timing Role: Safety-certified controller managing galvanic isolation monitoring, thermal derating, and coordinated USB/EVSE communication stack alongside power stage control. Use Value: AEC Q100 qualification ensures lifetime reliability at 125°C junction; on-chip temperature sensor and 128-bit CSM enable secure firmware updates and tamper-proof calibration storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28066PZTQ | Same core, memory, peripherals; differs only in temperature grade (T: –40°C to 105°C vs. Q: –40°C to 125°C) and AEC Q100 certification | Not qualified for automotive safety-critical systems; suitable for industrial drives where extended temperature is not required | Select PZTQ for cost-sensitive industrial applications lacking automotive qualification requirements |
| TMS320F28069PZPQ | Higher memory: 128KB Flash / 50KB RAM vs. 64KB / 50KB; adds VCU and CLA (F28069 includes CLA, F28066 does not) | Enables more complex control algorithms (e.g., predictive control, multi-axis coordination) and larger firmware images | Select PZPQ when additional Flash and CLA acceleration are needed for advanced motion or digital power architectures |
Compared with TMS320F28066PZPQ, the PZTQ variant lacks AEC Q100 validation and operates at lower max temperature, while the PZPQ offers double Flash capacity and CLA-making it preferable for next-generation automotive OBC or higher-fidelity servo implementations.
Availability
TMS320F28066PZPQ is available at Aetrix Electronics and suitable for EV charging station power modules, solar string inverters, and industrial servo drive control modules requiring stable component supply across automotive and industrial production lifecycles.
Supply support for TMS320F28066PZPQ 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, with leadership in real-time control, power management, and signal chain technologies.
The TMS320F2806x family targets high-performance real-time control in motor drives, digital power, and automotive electrification-designed to unify precision analog sensing, deterministic computation, and robust peripheral integration in compact packages.
FAQ
What is the maximum operating frequency and instruction cycle time of the TMS320F28066PZPQ?
The TMS320F28066PZPQ operates at a maximum CPU frequency of 90 MHz, yielding a 11.11-ns instruction cycle time. This timing is guaranteed across the full –40°C to +125°C temperature range and 3.3-V supply, enabling deterministic execution of real-time control loops with sub-microsecond latency.
Does the TMS320F28066PZPQ include a floating-point unit and control law accelerator?
Yes, the TMS320F28066PZPQ includes a native single-precision floating-point unit (FPU) but does not include the Programmable Control Law Accelerator (CLA). The CLA is present in the TMS320F28069PZPQ and TMS320F28068M variants-not in the F28066 series per the official device comparison table.
What package type and thermal features does the TMS320F28066PZPQ use?
The TMS320F28066PZPQ uses a 100-pin HTQFP PowerPAD™ (PZP) package measuring 14.0 mm × 14.0 mm. Its exposed thermal pad must be soldered to the PCB ground plane using thermal vias to meet junction temperature limits under continuous 125°C ambient operation per AEC Q100 requirements.
Which analog-to-digital converter specifications apply to the TMS320F28066PZPQ?
The TMS320F28066PZPQ integrates a 12-bit dual-sample-and-hold ADC with 3.46 MSPS maximum throughput, 16 input channels, 289-ns conversion time, and support for ratio-metric referencing using external VREFHI/VREFLO. It also includes an on-chip temperature sensor.
Is USB functionality supported on the TMS320F28066PZPQ?
Yes, the TMS320F28066PZPQ includes a full-speed USB 2.0 peripheral supporting both device and host modes. It provides dedicated USB0DP and USB0DM pins, internal PHY, and DMA-accessible buffers-enabling firmware updates, diagnostics, and EVSE communication in OBC and charging applications.
TMS320F28066PZPQ 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F28066PZPQ FAQ
1.How can I place an order for TMS320F28066PZPQ through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28066PZPQ 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 TMS320F28066PZPQ reliable?
The price and inventory of TMS320F28066PZPQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28066PZPQ is usually 5 days.
3.What payment methods are accepted for TMS320F28066PZPQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28066PZPQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28066PZPQ?
TMS320F28066PZPQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28066PZPQ 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 TMS320F28066PZPQ?
For technical support, including TMS320F28066PZPQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28066PZPQ requirements.
6.How does Aetrix verify that TMS320F28066PZPQ is sourced from the original manufacturer or authorized distributors?
All TMS320F28066PZPQ 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 TMS320F28066PZPQ meets industry standards.
7.What is the process for return or replacement of TMS320F28066PZPQ?
All TMS320F28066PZPQ units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28066PZPQ, 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 TMS320F28066PZPQ part is unused and in its original packaging.
Return procedure for TMS320F28066PZPQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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