Texas Instruments TMS320F28332PTPS
- Part No.:
- TMS320F28332PTPS
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 176-LQFP Exposed Pad
- Datasheet:
-
TMS320F28332PTPS.pdf
- Description:
- IC MCU 32BIT 128KB FLSH 176HLQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
TMS320F28332PTPS 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 16-channel ADC operating at 12.5 MSPS. It delivers deterministic control for high-accuracy motor and power conversion systems, including industrial inverters and servo drives.
For engineers reviewing the TMS320F28332PTPS datasheet, TMS320F28332PTPS pinout, TMS320F28332PTPS application, or TMS320F28332PTPS equivalent, key selection criteria include its 100-MHz CPU speed, HRPWM with 150-ps MEP resolution, dual eCAN modules, 2×SCI UARTs, and HLQFP-176 package with –40°C to 125°C extended temperature rating.
Technical Context
The TMS320F28332PTPS implements a Harvard-architecture 32-bit C28x CPU with unified memory model and hardware-accelerated floating-point math, enabling efficient real-time control loop execution. Its peripheral set includes six ePWM modules (four with HRPWM), two eCAN controllers, two SCI interfaces, one SPI, one I²C, two McBSPs, and a 12-bit ADC with dual sample-and-hold and simultaneous sampling capability.
System-level timing is managed via on-chip oscillator with PLL, watchdog timer, and three independent 32-bit CPU timers. Power management supports IDLE, STANDBY, and HALT modes with individual peripheral clock gating - critical for thermal-constrained industrial motor control applications requiring sustained operation at 125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Speed | 100 MHz (10-ns cycle time) - enables sub-microsecond control loop execution in digital power and motor drive applications |
| Flash Memory | 64K × 16 words - sufficient for complex field-oriented control (FOC) algorithms with safety monitoring code |
| SARAM | 26K × 16 words - provides low-latency data storage for real-time variables and interrupt service routines |
| ADC Resolution & Rate | 12-bit, 12.5 MSPS (80-ns conversion) - supports high-fidelity current/voltage sensing in three-phase inverters |
| HRPWM Resolution | 150-ps minimum pulse width - enables precise dead-time control and high-frequency switching in SiC/GaN-based power stages |
| eCAN Interfaces | 2 modules (32-message mailboxes each) - supports robust communication in distributed motor control systems per ISO 11898-1 |
| Temperature Range | –40°C to +125°C - qualified for under-hood automotive traction inverter and industrial HVAC compressor control |
Pinout & Package
Package: Thermally Enhanced Low-Profile Quad Flatpack (HLQFP), 176-pin, 24.0 mm × 24.0 mm body, exposed thermal pad, RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO / VSSIO | I/O power supply / ground | 3.3-V tolerant banks support mixed-voltage interfacing with sensors, gate drivers, and communication transceivers |
| VDDA / VSSA | Analog supply / ground | Independent 3.3-V analog domain ensures ADC accuracy and noise immunity in noisy power electronics environments |
| XCLKIN / X1 / X2 | External clock input / crystal oscillator terminals | Supports 1–20 MHz crystal or external clock source for precise system timing and jitter-sensitive PWM generation |
| EPWMxA / EPWMxB | Enhanced PWM output pairs | Dual complementary outputs per module enable active-high/active-low gate drive with programmable dead-band insertion |
| CANRXA / CANTXA | eCAN-A differential receiver/transmitter | Direct connection to ISO 11898-compliant CAN transceiver; supports bit rates up to 1 Mbps for real-time bus communication |
| SCIRXDA / SCITXDA | SCI-A UART receive/transmit | Asynchronous serial interface for host diagnostics, firmware updates, or parameter configuration over RS-232/RS-485 |
| ADCSOCx | ADC start-of-conversion trigger | Hardware-synchronized sampling triggered by PWM events - eliminates software latency in current-loop sampling |
| GPIO0–GPIO87 | Configurable general-purpose I/O | 88 pins multiplexed across peripherals; individually filterable for EMI resilience in industrial ESD environments |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | IEEE 754 single-precision hardware accelerator reduces FOC algorithm execution time by >4× vs fixed-point, simplifying development of adaptive control laws |
| High-Resolution PWM (HRPWM) | 150-ps MEP resolution enables <1-ns timing precision for SiC/GaN gate drivers, improving efficiency and reducing EMI in high-frequency inverters |
| Peripheral Interrupt Expansion (PIE) | Centralized 58-interrupt vector table with priority encoding - guarantees deterministic response to ADC end-of-conversion, PWM zero-crossing, and CAN mailbox events |
| 128-bit Security Key/Lock | Prevents unauthorized read-out of flash/SARAM/OTP - protects proprietary motor control IP and meets IEC 61508 SIL-2 firmware integrity requirements |
| Boot ROM with Math Tables | 8K × 16 boot ROM containing trigonometric, logarithmic, and division tables - accelerates runtime computation without consuming flash space |
Applications
| Industrial Motor Drive | Grid-Tied Solar Inverter |
|---|---|
Use Scenario: Closed-loop field-oriented control of 3-phase PMSM/BLDC motors in HVAC compressors and conveyor systems. IC Role / Device Role / Timing Role: Real-time controller executing position/speed/current loops at 20 kHz with synchronized ADC sampling and HRPWM update. Use Value: 100-MHz FPU enables fast vector math; 150-ps HRPWM minimizes dead-time distortion; dual eCAN supports distributed drive architecture. | Use Scenario: MPPT tracking and grid-synchronization in central/string inverters with transformerless topology. IC Role / Device Role / Timing Role: Master controller managing DC-link voltage regulation, islanding detection, and reactive power injection via 50/60 Hz grid phase-locked loop. Use Value: 12.5-MSPS ADC captures fast transient grid faults; dual SCI enables Modbus RTU communication with energy meters; 125°C rating supports rooftop enclosure operation. |
| Automotive On-Board Charger (OBC) | Industrial AC-DC Power Supply |
Use Scenario: Bidirectional AC/DC conversion in EV OBC units compliant with SAE J1772 and ISO 15118. IC Role / Device Role / Timing Role: Primary-side controller coordinating PFC and LLC resonant stages with isolated gate driver interface and CAN FD communication to vehicle battery management system. Use Value: –40°C to 125°C operation meets AEC-Q100 Grade 0 requirements; 2×eCAN supports vehicle network integration; OTP ROM stores calibration constants. | Use Scenario: High-efficiency 3–5 kW telecom/server PSUs with active PFC and synchronous rectification. IC Role / Device Role / Timing Role: Digital controller implementing predictive current-mode control, soft-start sequencing, and fault logging via SPI-connected EEPROM. Use Value: 64K flash accommodates multi-stage control firmware; 26K SARAM buffers real-time telemetry; XINTF interface supports external memory expansion for waveform capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28335PTP | 150-MHz CPU, 256K × 16 flash, 34K × 16 SARAM, same HLQFP-176 package | Higher performance for complex multi-axis motion control or dual-loop digital power designs | Select when additional flash/SARAM or 150-MHz throughput is required; pin-compatible but requires revalidation of timing-critical paths |
| TMS320F28377DPTP | Dual C28x CPUs + CLA accelerators, 1-MB flash, 2×16-bit ADCs, USB, CLB - 176-pin QFP package | Targeted at next-generation systems needing parallel processing, enhanced analog acquisition, or functional safety certification | Choose for ASIL-B capable designs or where CLA offloads CPU from PWM/ADC intensive tasks; not pin-compatible - requires PCB redesign |
Compared with TMS320F28332PTPS, the F28335PTP offers higher clock speed and memory for scaling control complexity, while the F28377DPTP introduces dual-core architecture and safety features - making TMS320F28332PTPS optimal for cost-sensitive, thermally demanding industrial motor control where 100-MHz deterministic performance suffices.
Availability
TMS320F28332PTPS is available at Aetrix Electronics and suitable for industrial motor drives, solar inverters, and automotive on-board chargers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TMS320F28332PTPS 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 with leadership in industrial, automotive, and power management solutions.
The TMS320F28332PTPS belongs to TI's C2000™ real-time microcontroller product line, designed specifically for closed-loop control in power electronics, motor drives, and digital power conversion - emphasizing deterministic timing, analog integration, and computational efficiency.
FAQ
What is the maximum operating frequency of the TMS320F28332PTPS?
The TMS320F28332PTPS operates at a maximum CPU frequency of 100 MHz, corresponding to a 10-ns instruction cycle time. This speed is guaranteed across its full industrial temperature range of –40°C to +125°C when powered with 1.9-V core and 3.3-V I/O supplies, enabling deterministic execution of high-bandwidth control algorithms in real-time motor and power applications.
Does the TMS320F28332PTPS include a floating-point unit?
Yes, the TMS320F28332PTPS integrates an IEEE 754 single-precision floating-point unit (FPU) as part of its C28x CPU core. This hardware accelerator significantly improves computational throughput for trigonometric, exponential, and matrix operations used in field-oriented control and digital signal processing - a feature shared across all F2833x devices including the TMS320F28332PTPS.
What package type and thermal characteristics does the TMS320F28332PTPS use?
The TMS320F28332PTPS uses a Thermally Enhanced Low-Profile Quad Flatpack (HLQFP) with 176 pins and an exposed thermal pad. Its 24.0 mm × 24.0 mm body size and optimized thermal design support reliable operation at junction temperatures up to +125°C - validated for continuous use in high-power-density industrial and automotive under-hood applications.
How many PWM and HRPWM channels does the TMS320F28332PTPS support?
The TMS320F28332PTPS supports six enhanced PWM (ePWM) modules, each providing complementary A/B outputs, and four high-resolution PWM (HRPWM) channels (ePWM1A/2A/3A/4A). The HRPWM achieves 150-ps minimum pulse width resolution, enabling precise gate timing for wide-bandgap power devices in high-frequency switching topologies.
Is the TMS320F28332PTPS pin-compatible with other F2833x devices in HLQFP packaging?
Yes, the TMS320F28332PTPS is pin-compatible with other F2833x MCUs offered in the HLQFP-176 package (e.g., TMS320F28334PTP and TMS320F28335PTP), sharing identical pin assignments, electrical characteristics, and thermal pad layout - allowing direct substitution in existing designs when memory or performance headroom permits.
TMS320F28332PTPS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 176-LQFP Exposed Pad
- Series:
- C2000™ C28x Delfino™
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F28332PTPS FAQ
1.How can I place an order for TMS320F28332PTPS through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28332PTPS 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 TMS320F28332PTPS reliable?
The price and inventory of TMS320F28332PTPS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28332PTPS is usually 5 days.
3.What payment methods are accepted for TMS320F28332PTPS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28332PTPS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28332PTPS?
TMS320F28332PTPS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28332PTPS 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 TMS320F28332PTPS?
For technical support, including TMS320F28332PTPS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28332PTPS requirements.
6.How does Aetrix verify that TMS320F28332PTPS is sourced from the original manufacturer or authorized distributors?
All TMS320F28332PTPS 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 TMS320F28332PTPS meets industry standards.
7.What is the process for return or replacement of TMS320F28332PTPS?
All TMS320F28332PTPS units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28332PTPS, 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 TMS320F28332PTPS part is unused and in its original packaging.
Return procedure for TMS320F28332PTPS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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