My Inquiry
My Account
Texas Instruments TMS320F28065UPNT
- Part No.:
- TMS320F28065UPNT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
TMS320F28065UPNT.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,046
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TMS320F28065UPNT 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. It features 64KB flash, 50KB RAM, 16 ePWM channels (8 HRPWM-capable), 3 eCAP, 4 HRCAP, 2 eQEP, USB 2.0, eCAN, and dual SCI/UART.
For engineers reviewing the TMS320F28065UPNT datasheet, TMS320F28065UPNT pinout, TMS320F28065UPNT application, or TMS320F28065UPNT equivalent, key selection criteria include HRPWM resolution for SiC/GaN gate drive timing, CLA offloading capability for real-time current loop execution, ADC sampling latency under DMA-triggered SOC, and USB/eCAN coexistence in embedded firmware update architectures.
Technical Context
The TMS320F28065UPNT implements a Harvard-architecture C28x CPU with atomic instruction support and unified memory mapping, enabling deterministic interrupt response within 6 cycles. Its CLA operates independently of the main CPU using dedicated 32-bit floating-point math units and local RAM, allowing concurrent execution of control-law code such as field-oriented control (FOC) inner loops.
Peripheral integration includes dual-sample-and-hold ADC with ratio-metric VREFHI/VREFLO references, analog comparators routed directly to ePWM trip zones for hardware fault protection, and enhanced ePWM modules supporting dual-edge modulation for frequency-controlled resonant converters. The device uses a single 3.3-V supply with internal voltage regulation and supports IEEE 1149.1 JTAG boundary scan.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed/floating-point, 90 MHz (11.11-ns cycle time), Harvard architecture |
| Memory | 64KB on-chip flash (16-bit word), 50KB SARAM (dual-access), 1KB OTP ROM |
| ADC | 12-bit dual sample-and-hold, 3.46 MSPS max, 16 input channels, 289-ns conversion time |
| ePWM | 8 modules, 16 total channels, 8 HRPWM-capable, independent 16-bit timers per module |
| Communication | 2× SCI/UART, 2× SPI, 1× I²C, 1× eCAN, 1× McBSP, 1× USB 2.0 (full-speed device/host) |
| Package | 80-pin LQFP (PN), 12 mm × 12 mm body, PowerPAD not electrically connected to VSS |
| Temperature Range | –40°C to 105°C (T grade), qualified for industrial motor drives and solar inverters |
Pinout & Package
Package: 80-pin Low-Profile Quad Flatpack (LQFP, PN), 12.0 mm × 12.0 mm body size, thermally enhanced PowerPAD exposed pad (mechanically grounded only, not electrically shorted to VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GPIO0/EPWM1A | PWM output channel A | Primary high-side gate drive signal for phase 1; supports HRPWM edge placement at sub-nanosecond resolution |
| GPIO1/EPWM1B/COMP1OUT | PWM output B + comparator output | Complementary low-side drive for phase 1; COMP1OUT enables hardware trip-zone assertion on overcurrent |
| ADCINA0/VREFHI | Analog input / reference high | Shared pin: either first ADC channel input or external VREFHI source; mutually exclusive use per datasheet |
| VREFLO | Analog reference low | Internally tied to VSSA on 80-pin packages; establishes 0-V reference for ratio-metric ADC measurements |
| X1/X2 | Crystal oscillator terminals | Supports external crystal (1–20 MHz) or external clock input; internal oscillators eliminate need for external crystal |
| USB0DP/USB0DM | USB differential pair | Full-speed USB 2.0 interface; requires external 1.5-kΩ pull-up on DP for device enumeration |
| TRST/TCK/TDI/TDO/TMS | JTAG test access port | IEEE 1149.1-compliant debug interface; enables real-time analysis, breakpoint, and flash programming |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Control Law Accelerator (CLA) | Dedicated 32-bit floating-point core executing control algorithms (e.g., FOC, PID) independently of CPU, reducing main CPU load by up to 40% in servo drive applications |
| High-Resolution PWM (HRPWM) | 8 channels with 150-ps resolution fine adjustment, enabling precise dead-time control and ZVS/ZCS timing in GaN-based LLC resonant converters |
| Viterbi/CRC/Complex Math Unit (VCU) | Hardware acceleration for CRC-32, complex multiply, and Viterbi decoding - reduces software overhead in communication-integrated motor controllers |
| On-chip temperature sensor | Monitors die temperature with ±2.5°C accuracy; used for thermal derating in high-power inverter stages without external sensors |
| 128-bit security key & lock | Prevents unauthorized read-out of flash/SARAM/OTP; protects proprietary motor control algorithms and calibration data from reverse engineering |
Applications
| Industrial Inverter Control | Solar String Inverter |
|---|---|
Use Scenario: Three-phase AC drive controlling induction or PMSM motors in HVAC compressors and conveyor systems. IC Role / Device Role / Timing Role: Real-time execution of field-oriented control (FOC) with 100-µs current loop update, synchronized ADC sampling, and HRPWM gate drive generation. Use Value: Dual-sample-and-hold ADC enables simultaneous current sensing across two phases; CLA offloads torque/flux calculations, freeing CPU for communication and safety monitoring. | Use Scenario: MPPT and grid-synchronization control in residential solar string inverters with DC-DC boost and DC-AC inversion stages. IC Role / Device Role / Timing Role: High-precision ADC sampling of PV voltage/current and grid voltage, coupled with ePWM-driven SiC MOSFET gate signals and eCAN-based grid compliance messaging. Use Value: 3.46-MSPS ADC captures fast transients during partial shading events; USB 2.0 enables secure firmware updates in field-deployed units. |
| EV On-Board Charger (OBC) | Welding Power Supply |
Use Scenario: Bidirectional AC-DC and DC-DC conversion in automotive on-board chargers supporting 6.6 kW AC input and 800-V battery output. IC Role / Device Role / Timing Role: Coordinating interleaved PFC and CLLC resonant converter stages via synchronized ePWM outputs and hardware-tripped fault protection. Use Value: HRPWM fine-resolution control ensures zero-voltage switching across wide load ranges; analog comparators feed directly into ePWM trip zones for <100-ns overvoltage shutdown. | Use Scenario: Constant-current arc control in industrial IGBT-based welding power supplies with adaptive droop compensation. IC Role / Device Role / Timing Role: Closed-loop current regulation at 20 kHz switching frequency, using ADC-sampled weld current and CLA-executed adaptive PID with anti-windup. Use Value: 6-channel DMA transfers ADC results to CLA RAM without CPU intervention; eCAP modules measure arc voltage rise time for short-circuit 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 |
|---|---|---|---|
| TMS320F28069PZP | 128KB flash, 100-pin HTQFP package, full peripheral set including VCU and CLA | Higher memory and I/O count for complex multi-axis servo drives requiring extended motion profiling | Select when >64KB flash or >54 GPIOs are required; not pin-compatible with TMS320F28065UPNT |
| TMS320F280049CPT | 100-MHz C28x+CLA+FPU, 256KB flash, 16-bit 4-MSPS ADC, CLB logic blocks, no USB | Next-generation replacement with configurable logic blocks for custom PWM sequencing and sensor preprocessing | Preferred for new designs needing higher performance, larger memory, and future-proof peripheral roadmap; requires PCB redesign |
Compared with TMS320F28069PZP and TMS320F280049CPT, the TMS320F28065UPNT offers optimal cost/performance balance for mid-tier industrial inverters where 64KB flash and 80-pin I/O density meet functional requirements without over-provisioning.
Availability
TMS320F28065UPNT is available at Aetrix Electronics and suitable for industrial motor drives, solar string inverters, and EV on-board charger power modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TMS320F28065UPNT 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets.
The TMS320F2806x family belongs to TI's C2000™ real-time microcontroller portfolio, engineered specifically for deterministic closed-loop control in power electronics - emphasizing high-resolution timing, analog integration, and computational acceleration for motor and digital power systems.
FAQ
What is the maximum operating frequency of the TMS320F28065UPNT?
The TMS320F28065UPNT operates at a maximum CPU frequency of 90 MHz, corresponding to an 11.11-ns instruction cycle time. This speed is achieved using the internal PLL with either the on-chip zero-pin oscillators or an external crystal/clock source. All peripherals, including the 12-bit ADC and ePWM modules, are fully functional at this clock rate without throttling.
Does the TMS320F28065UPNT include a floating-point unit (FPU)?
Yes, the TMS320F28065UPNT integrates a native single-precision floating-point unit (FPU) that accelerates mathematical operations such as trigonometric functions, square roots, and division - critical for real-time motor control algorithms like field-oriented control. The FPU is fully supported in TI's C2000 compiler toolchain and works seamlessly with the CLA for parallel floating-point computation.
How many high-resolution PWM (HRPWM) channels does the TMS320F28065UPNT support?
The TMS320F28065UPNT supports 8 high-resolution PWM (HRPWM) channels, all derived from its 8 ePWM modules. Each HRPWM channel provides 150-ps resolution for fine edge positioning, enabling precise dead-time control and soft-switching implementation in SiC and GaN-based power converters. These channels are accessible on designated GPIO pins and require no external circuitry for sub-nanosecond timing adjustments.
Is USB functionality available on the TMS320F28065UPNT?
Yes, the TMS320F28065UPNT includes a full-speed USB 2.0 peripheral supporting both device and host modes. It features dedicated USB0DP and USB0DM pins, internal transceivers, and endpoint buffers. USB is used for firmware updates, configuration, and diagnostic communication in applications such as EV on-board chargers and industrial HMIs - confirmed in the Device Comparison table for "28065U" variants.
What is the flash memory capacity of the TMS320F28065UPNT?
The TMS320F28065UPNT contains 64KB of on-chip flash memory organized as 16-bit words, divided into eight equal sectors for flexible erase/write operations. This capacity supports typical real-time control firmware with space reserved for bootloader, application code, and parameter tables. Flash is secured via the 128-bit CSM module to prevent unauthorized read-out or modification.
TMS320F28065UPNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- C2000™ C28x Piccolo™
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- C28x
- Core Size:
- 32-Bit Single-Core
- Speed:
- 90MHz
- Connectivity:
- CANbus, I2C, McBSP, SCI, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 40
- Program Memory Size:
- 128KB (64K x 16)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 50K x 16
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 1.995V
- Data Converters:
- A/D 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F28065UPNT FAQ
1.How can I place an order for TMS320F28065UPNT through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28065UPNT 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 TMS320F28065UPNT reliable?
The price and inventory of TMS320F28065UPNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28065UPNT is usually 5 days.
3.What payment methods are accepted for TMS320F28065UPNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28065UPNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28065UPNT?
TMS320F28065UPNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28065UPNT 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 TMS320F28065UPNT?
For technical support, including TMS320F28065UPNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28065UPNT requirements.
6.How does Aetrix verify that TMS320F28065UPNT is sourced from the original manufacturer or authorized distributors?
All TMS320F28065UPNT 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 TMS320F28065UPNT meets industry standards.
7.What is the process for return or replacement of TMS320F28065UPNT?
All TMS320F28065UPNT units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28065UPNT, 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 TMS320F28065UPNT part is unused and in its original packaging.
Return procedure for TMS320F28065UPNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TMS320F28065UPNT Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
