Texas Instruments F2800135VPMR

Overview

TMS320F2800135VPMR from Texas Instruments is a 120-MHz C28x real-time microcontroller with FPU and TMU acceleration, 128KB flash, 36KB ECC/parity-protected RAM, dual 4-MSPS 12-bit ADCs, 14 ePWM channels (2 with 150-ps resolution), and integrated CAN, SPI, I²C, and three SCI interfaces - deployed in motor control for cordless power tools and AC-input BLDC drives.

For engineers reviewing the TMS320F2800135VPMR datasheet, TMS320F2800135VPMR pinout, TMS320F2800135VPMR application, or TMS320F2800135VPMR equivalent, key selection criteria include on-chip VREG support (enabled only in VPM package), 64-pin LQFP mechanical compatibility, real-time signal chain latency under 250 ns ADC conversion time, and dual-zone security for firmware IP protection.

Technical Context

The TMS320F2800135VPMR implements TI's C28x 32-bit DSP core with hardware-accelerated trigonometric math (TMU) and floating-point unit (FPU32), enabling deterministic execution of field-oriented control (FOC) loops at ≤1 µs cycle time. Its analog subsystem tightly couples two 12-bit ADCs (4 MSPS, 250 ns conversion) with four post-processing blocks (PPB) per ADC and three CMPSS_LITE comparators featuring 9.5-bit effective DACs.

System-level timing is governed by dual internal 10-MHz oscillators, PLL-based clock synthesis, windowed watchdog, missing-clock detection, and Dual-Clock Comparator (DCC). The device supports zero-pin boot and JTAGLOCK-enabled dual-zone security, with external voltage regulator enable (VREGENZ) exclusively available on the VPM package variant.

Key Specifications

Pinout & Package

64-pin Low-profile Quad Flatpack (LQFP), 12 mm × 12 mm body, 0.5 mm pitch. Pin 1 marked with dot; thermal pad not present. Compatible with JEDEC MS-026 standard.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar real-time control applications.

Compared with TMS320F2800135VPMR, the F2800137 offers double flash capacity for complex control stacks but omits VREGENZ, while the F2800133 reduces memory and cost at the expense of algorithm scalability - making the VPMR variant optimal for mid-tier designs needing both expandability and flexible power architecture.

Availability

TMS320F2800135VPMR is available at Aetrix Electronics and suitable for cordless power tools, AC-input BLDC motor drives, drone ESCs, and solar charge controllers requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability.

Supply support for TMS320F2800135VPMR 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 digital signal processing technologies with over 50 years of innovation in industrial and automotive electronics.

The TMS320F280013x product line was designed specifically for ultra-low-latency power electronics control - integrating high-speed analog, precision PWM, and real-time math acceleration into a single chip for motor, power supply, and renewable energy systems.

FAQ

What distinguishes the TMS320F2800135VPMR from other F280013x variants?

The TMS320F2800135VPMR is uniquely identified by its 64-pin LQFP package with VREGENZ pin (VPM suffix), enabling external 1.2-V regulator control - a feature absent in standard PM, PT, RGZ, and RHB packages. It contains 128KB flash and shares the 120-MHz C28x core, dual 4-MSPS ADCs, and 14-channel ePWM with other F2800135 devices, but only the VPMR variant supports this external regulator enable functionality.

Does the TMS320F2800135VPMR support CAN FD or only classical CAN?

The TMS320F2800135VPMR supports only classical CAN 2.0B (ISO 11898-1), not CAN FD. Its single DCAN module operates at up to 1 Mbps with message objects and FIFO buffering, but lacks the extended data length, bit rate switching, and CRC enhancements defined in CAN FD. For CAN FD capability, TI recommends the F28003x or F2838x families.

What is the role of the VREGENZ pin on the TMS320F2800135VPMR?

The VREGENZ pin on the TMS320F2800135VPMR is an active-high output that enables an external 1.2-V voltage regulator when asserted. This allows system-level flexibility: the internal VREG can be disabled and replaced with a higher-efficiency or lower-noise external LDO. VREGENZ is exclusive to the VPM package and is not present on PM, PT, RGZ, or RHB variants of the F2800135.

Can the TMS320F2800135VPMR operate without an external crystal?

Yes, the TMS320F2800135VPMR can operate without an external crystal. It integrates two internal 10-MHz oscillators (INTOSC1/INTOSC2) with ±1% accuracy when used with external resistor (ExtR) trimming. These support full-speed operation, boot, and clock monitoring - eliminating the need for a crystal in cost- and space-constrained designs such as portable power tools and small inverters.

How many analog input channels are accessible on the TMS320F2800135VPMR in the 64-pin package?

The TMS320F2800135VPMR provides up to 21 external analog input channels in the 64-pin LQFP package: 16 dedicated ADC-A/C pins (A0–A19, C0–C19, excluding reserved pins) plus 5 additional analog-capable GPIOs (e.g., GPIO224, GPIO228, GPIO230, GPIO242, GPIO226) confirmed in Section 5.5 of the datasheet. All 21 channels support single-ended or differential acquisition modes.