Texas Instruments F2800137PT

Overview

TMS320F2800137PT from Texas Instruments is a 120-MHz C28x real-time microcontroller with FPU and TMU acceleration, 256KB ECC-protected flash, 36KB ECC/parity-protected RAM, and dual 4-MSPS 12-bit ADCs. It integrates 14 ePWM channels (2 with 150-ps resolution), 1 CAN port, 3 SCI, 2 I2C, 1 SPI, and 38 GPIO for high-precision motor control in power electronics systems.

For engineers reviewing the TMS320F2800137PT datasheet, TMS320F2800137PT pinout, TMS320F2800137PT application, or TMS320F2800137PT equivalent, key selection criteria include its 48-pin LQFP package, integrated analog signal chain (ADC + CMPSS), deterministic real-time control latency, and support for closed-loop BLDC/servo drives requiring sub-microsecond timing precision.

Technical Context

The TMS320F2800137PT implements TI's C28x 32-bit DSP core with hardware-accelerated trigonometric math (TMU) and floating-point unit (FPU32), enabling cycle-accurate execution of field-oriented control (FOC) algorithms. Its dual 12-bit ADCs operate at 4 MSPS with four post-processing blocks per ADC and synchronized sampling across channels.

System-level timing is governed by a PLL-based clock tree supporting 120-MHz CPU operation, dual internal 10-MHz oscillators with external resistor tuning (ExtR), and windowed watchdog with missing-clock detection. The device uses a 3.3-V I/O domain with internal VREG and brownout reset (BOR) for robust industrial operation from –40°C to 125°C.

Key Specifications

Pinout & Package

Package: 48-pin Low-profile Quad Flatpack (LQFP), 9 mm × 9 mm body size, 0.5-mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F2800135PT and TMS320F2800133PT, the TMS320F2800137PT provides 256KB flash for complex control stacks with safety monitoring, dual ADC post-processing, and secure boot - making it optimal for industrial-grade inverters requiring functional safety certification pathways.

Availability

TMS320F2800137PT is available at Aetrix Electronics and suitable for motor drives, solar power optimizers, industrial AC-DC converters, and robotic lawn mower controllers requiring stable component supply across extended production lifecycles.

Supply support for TMS320F2800137PT 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 power management technologies with over 90 years of innovation in industrial and automotive electronics.

The TMS320F2800137PT belongs to TI's C2000™ real-time microcontroller product line, engineered specifically for ultra-low-latency control of power electronics - emphasizing deterministic timing, integrated analog signal chains, and hardware acceleration for motor and power conversion applications.

FAQ

What is the maximum operating temperature range for the TMS320F2800137PT?

The TMS320F2800137PT is rated for ambient operating temperatures from –40°C to 125°C, with junction temperature support up to 140°C. This wide range enables deployment in enclosed industrial enclosures, outdoor solar equipment, and high-temperature motor drive environments without forced cooling. Thermal design must account for power dissipation under full CPU and ADC load to maintain safe junction temperatures.

Does the TMS320F2800137PT support CAN FD or only classical CAN?

The TMS320F2800137PT supports only classical CAN 2.0B (up to 1 Mbps), not CAN FD. Its single CAN port implements TI's DCAN module compliant with ISO 11898-1, providing message filtering, FIFO buffering, and loopback self-test modes. For CAN FD requirements, designers should consider the TMS320F28003x or TMS320F2838x families instead.

How many ADC input channels are accessible on the TMS320F2800137PT in the 48-pin PT package?

In the 48-pin LQFP (PT) package, the TMS320F2800137PT provides access to up to 21 external ADC input channels - 11 shared with GPIO pins and 10 dedicated analog-only inputs. Pin multiplexing tables confirm A0–A19 and C0–C19 signals are available across PT package pins, with full dual-ADC functionality retained despite reduced pin count versus the 64-pin variant.

Is the TMS320F2800137PT pin-compatible with other devices in the F280013x family?

Yes - the TMS320F2800137PT shares identical pinout and electrical characteristics with TMS320F2800135PT and TMS320F2800133PT in the 48-pin LQFP (PT) package. All three variants use the same mechanical footprint, signal mapping, and power/ground pin assignments, enabling drop-in replacement during prototyping or qualification when flash size requirements change.

What security features are implemented in the TMS320F2800137PT?

The TMS320F2800137PT includes JTAGLOCK to disable debug access, zero-pin boot for secure startup without external configuration pins, and dual-zone security that partitions flash and RAM into protected and unprotected regions. These features prevent unauthorized firmware extraction and ensure trusted boot execution - meeting baseline requirements for industrial IP protection and early-stage functional safety development.