Texas Instruments TMS320F28332PTPQ
- Part No.:
- TMS320F28332PTPQ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 176-LQFP Exposed Pad
- Datasheet:
-
TMS320F28332PTPQ.pdf
- Description:
- IC MCU 32BIT 128KB FLSH 176HLQFP
- Quantity:
- Payment:

- Shipping:

Inventory:3,314
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Product details
Overview
TMS320F28332PTPQ from Texas Instruments is a 100-MHz C2000™ real-time microcontroller with IEEE 754 single-precision FPU, 64K × 16 flash, 26K × 16 SARAM, and 12-bit 12.5-MSPS ADC - designed for closed-loop motor control, digital power conversion, and automotive inverter systems requiring deterministic timing and analog integration.
For engineers reviewing the TMS320F28332PTPQ datasheet, TMS320F28332PTPQ pinout, TMS320F28332PTPQ application, or TMS320F28332PTPQ equivalent, key selection criteria include its 100-MHz CPU cycle time (10 ns), AEC-Q100 qualified -40°C to 125°C operation, HLQFP-176 package, dual eCAN interfaces, and 18-channel ePWM capability with 150-ps HRPWM resolution.
Technical Context
The TMS320F28332PTPQ implements a Harvard-architecture 32-bit C28x CPU with hardware FPU acceleration, enabling high-accuracy floating-point math for real-time control algorithms without software emulation overhead. Its memory subsystem includes unified programming model support across on-chip flash, SARAM, OTP, and boot ROM.
Peripheral integration centers on deterministic timing: six ePWM modules (18 outputs), six HRPWM channels with 150-ps MEP resolution, two eQEP interfaces, six eCAP inputs, dual eCAN 2.0B controllers, three SCI (UART) ports, two McBSP/SPI, one SPI, one I²C, and a 16-channel 12-bit ADC with 80-ns conversion time and dual sample-and-hold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Speed | 100 MHz (10-ns cycle time) - enables sub-microsecond loop execution for high-bandwidth motor and power control. |
| Floating-Point Unit | IEEE 754 single-precision FPU - eliminates need for fixed-point scaling in complex control law implementation. |
| Flash Memory | 64K × 16 words - sufficient for dual-bank firmware updates and safety-critical application code with redundancy. |
| SARAM | 26K × 16 words - supports real-time data buffers, coefficient tables, and fast-access control variables. |
| ADC Resolution & Rate | 12-bit, 12.5 MSPS (80-ns conversion) - captures fast transients in inverter phase currents and DC-link voltage. |
| ePWM Outputs | 18 channels - drives 3-phase inverters with dead-time insertion, synchronization, and fault protection. |
| HRPWM Resolution | 150-ps minimum pulse width - enables fine-grained duty-cycle control for resonant LLC and SiC gate driving. |
| Temperature Range | -40°C to +125°C (AEC-Q100 qualified) - validated for under-hood automotive traction inverter and OBC applications. |
Pinout & Package
Package: Thermally Enhanced Low-Profile Quad Flatpack (HLQFP), 176-pin, 24.0 mm × 24.0 mm body size, RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO / VSSIO | I/O Power Supply / Ground | 3.3-V tolerant interface domain - powers GPIO, peripheral I/O, and external memory interface pins. |
| VDD / VSS | Core Power Supply / Ground | 1.9-V core supply - optimized for 100-MHz operation with low dynamic power consumption. |
| XCLKIN / X1 / X2 | External Clock Input / Crystal Oscillator Terminals | Supports 1–20 MHz crystal or external clock source - feeds PLL for precise system clock generation. |
| GPIO0–GPIO87 | General-Purpose I/O | 88 multiplexed pins with programmable pull-up/down and input filtering - configurable as PWM, CAP, QEP, CAN, SCI, SPI, or GPIO. |
| CANTXA / CANRXA | eCAN-A Transmit/Receive | Differential CAN bus interface compliant with ISO 11898-1 - supports fault-tolerant communication in automotive networks. |
| EPWMA1 / EPWMB1 | ePWM-A Channel 1 Output Pair | Complementary high-resolution PWM outputs with programmable dead time - directly drives half-bridge gate drivers. |
| ADCSOC0–ADCSOC15 | ADC Start-of-Conversion Triggers | Hardware-synchronized sampling triggers from ePWM, timer, or GPIO - ensures precise phase-aligned current/voltage capture. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Hardware-accelerated IEEE 754 single-precision arithmetic - reduces control law computation latency by >5× vs. fixed-point emulation. |
| High-Resolution PWM (HRPWM) | 150-ps MEP resolution on 6 channels - enables precise duty-cycle tuning for SiC/GaN switching and soft-switching topologies. |
| 12-bit 12.5-MSPS ADC | Dual 8-channel multiplexer with two sample-and-hold - supports simultaneous sampling of up to 2 analog signals per trigger event. |
| Code Security Module | 128-bit password lock with flash/SARAM/OTP protection - prevents unauthorized firmware readout and reverse engineering. |
| AEC-Q100 Qualification | Grade 1 (-40°C to +125°C) qualification - meets automotive reliability and stress-test requirements for powertrain ECUs. |
| Peripheral Interrupt Expansion (PIE) | 58-channel interrupt vector mapping - enables deterministic response to time-critical events like PWM faults or ADC completions. |
Applications
| Motor Control in HVAC Systems | On-Board Charger (OBC) Control |
|---|---|
Use Scenario: Variable-speed compressor and blower control in commercial HVAC units with field-oriented control (FOC). IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation, and ADC sampling synchronized to motor electrical angle. Use Value: Enables >95% efficiency at partial load via precise torque ripple suppression and adaptive flux weakening. |
Use Scenario: Bidirectional AC/DC and DC/DC conversion in EV on-board chargers using interleaved PFC and LLC stages. IC Role / Device Role / Timing Role: Dual-loop voltage/current regulation, synchronous rectification timing, and isolated communication with vehicle battery management system. Use Value: Achieves 96% peak efficiency and <3% THD through 100-MHz deterministic control of SiC MOSFETs. |
| Traction Inverter Gate Driver Interface | Industrial Servo Drive Position Loop |
Use Scenario: High-voltage traction inverter control in 48V mild-hybrid and full-electric powertrains. IC Role / Device Role / Timing Role: Fault-safe PWM generation with cycle-by-cycle overcurrent shutdown, isolated gate driver interface, and CAN-based vehicle network coordination. Use Value: Meets ASIL-B functional safety requirements via hardware-based trip zones and redundant ADC sampling paths. |
Use Scenario: Closed-loop position and velocity control in industrial servo amplifiers with encoder feedback and current sensing. IC Role / Device Role / Timing Role: Execution of PID + feedforward position loop, eQEP decoding, and 18-channel PWM output for 3-phase motor phases plus braking. Use Value: Delivers ±0.01° positioning accuracy and 2-kHz bandwidth using integrated 12.5-MSPS ADC and 150-ps HRPWM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28335PTPQ | 150-MHz CPU, 256K × 16 flash, 34K × 16 SARAM, same peripherals and package | Higher flash/RAM capacity supports larger safety-certified firmware and multi-axis control stacks | Select when extended code space, dual-bank OTA updates, or additional RAM for observer-based control are required. |
| TMS320F28377DPTPQ | Dual-C28x+CLA architecture, 200-MHz CPU, 1-MB flash, enhanced ADC/DAC, USB, CLB | Enables advanced features like sigma-delta current sensing, real-time parameter tuning, and FPGA-like logic offload | Select for next-generation designs requiring higher computational throughput, functional safety certification (ASIL-D), or mixed-signal integration. |
Compared with TMS320F28332PTPQ, TMS320F28335PTPQ offers 4× more flash and 30% more RAM at identical speed and package, while TMS320F28377DPTPQ delivers 2× CPU performance and hardware accelerators for predictive control - making both viable upgrades depending on firmware complexity and safety requirements.
Availability
TMS320F28332PTPQ is available at Aetrix Electronics and suitable for automotive traction inverters, industrial servo drives, and onboard EV chargers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TMS320F28332PTPQ 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 over 50 years of automotive and industrial IC design expertise.
The TMS320F28332PTPQ belongs to TI's C2000™ real-time microcontroller product line, engineered specifically for deterministic closed-loop control in motor drives, renewable energy inverters, and power electronics where precision timing, analog integration, and computational efficiency are critical.
FAQ
What is the maximum operating frequency of the TMS320F28332PTPQ?
The TMS320F28332PTPQ operates at a maximum CPU frequency of 100 MHz, corresponding to a 10-ns instruction cycle time. This speed is guaranteed across the full -40°C to +125°C temperature range and 1.9-V core supply, enabling deterministic execution of complex control loops in real-time power conversion applications.
Does the TMS320F28332PTPQ include a floating-point unit?
Yes, the TMS320F28332PTPQ integrates a hardware IEEE 754 single-precision floating-point unit (FPU). This allows direct execution of floating-point arithmetic without software emulation, significantly accelerating control law computation, trigonometric functions, and matrix operations used in field-oriented motor control and digital power algorithms.
What package type and pin count does the TMS320F28332PTPQ use?
The TMS320F28332PTPQ uses a 176-pin Thermally Enhanced Low-Profile Quad Flatpack (HLQFP) package, designated by the suffix "PTP". Its 24.0 mm × 24.0 mm body size and exposed thermal pad support efficient heat dissipation in high-power-density automotive and industrial control modules.
Is the TMS320F28332PTPQ qualified for automotive applications?
Yes, the TMS320F28332PTPQ carries the "Q" suffix indicating AEC-Q100 qualification for Grade 1 operation (-40°C to +125°C). It meets automotive reliability, ESD, and stress-test requirements and is approved for use in safety-critical systems including traction inverters, on-board chargers, and ADAS power supplies.
How much on-chip memory does the TMS320F28332PTPQ provide?
The TMS320F28332PTPQ provides 64K × 16 words of on-chip flash memory for program storage and 26K × 16 words of single-access RAM (SARAM) for runtime data and stack. It also includes 1K × 16 OTP ROM and an 8K × 16 boot ROM with math tables and configurable boot modes.
TMS320F28332PTPQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 176-LQFP Exposed Pad
- Series:
- C2000™ C28x Delfino™
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- C28x
- Core Size:
- 32-Bit Single-Core
- Speed:
- 100MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, McBSP, SCI, SPI, UART/USART
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 88
- Program Memory Size:
- 128KB (64K x 16)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 26K x 16
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 1.89V
- 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:
TMS320F28332PTPQ FAQ
1.How can I place an order for TMS320F28332PTPQ through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28332PTPQ 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 TMS320F28332PTPQ reliable?
The price and inventory of TMS320F28332PTPQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28332PTPQ is usually 5 days.
3.What payment methods are accepted for TMS320F28332PTPQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28332PTPQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28332PTPQ?
TMS320F28332PTPQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28332PTPQ 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 TMS320F28332PTPQ?
For technical support, including TMS320F28332PTPQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28332PTPQ requirements.
6.How does Aetrix verify that TMS320F28332PTPQ is sourced from the original manufacturer or authorized distributors?
All TMS320F28332PTPQ 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 TMS320F28332PTPQ meets industry standards.
7.What is the process for return or replacement of TMS320F28332PTPQ?
All TMS320F28332PTPQ units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28332PTPQ, 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 TMS320F28332PTPQ part is unused and in its original packaging.
Return procedure for TMS320F28332PTPQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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