Texas Instruments TMS320F28377DPTPEP

Overview

TMS320F28377DPTPEP from Texas Instruments is a radiation-tolerant, dual-core 32-bit floating-point microcontroller designed for real-time closed-loop control in harsh environments. It integrates two 200-MHz C28x CPUs with IEEE 754 FPU, TMU, VCU-II, and two independent 200-MHz CLA coprocessors; features 1 MB ECC-protected Flash and 204 KB RAM; and supports extended temperature (–55°C to 125°C) operation for aerospace, defense, and industrial transport systems.

For engineers reviewing the TMS320F28377DPTPEP datasheet, TMS320F28377DPTPEP pinout, TMS320F28377DPTPEP application, or TMS320F28377DPTPEP equivalent, key selection criteria include dual-CPU deterministic latency, HRPWM dead-band precision, isolated sigma-delta current sensing via SDFM, and dual-zone security for third-party IP protection in safety-critical motor drives and grid infrastructure.

Technical Context

The TMS320F28377DPTPEP implements a tightly coupled dual-C28x architecture where each CPU executes independently with shared memory access via Data Bus Bridge and IPC module. Each core includes dedicated FPU, TMU, and VCU-II for trigonometric and complex math acceleration-critical for field-oriented control (FOC) torque loop computation at ≤1 µs latency.

Its analog subsystem comprises four independent 16-bit/12-bit ADCs (1.1 MSPS/3.5 MSPS per channel), eight windowed comparators with 12-bit DAC references, three buffered DAC outputs, and eight SDFM input channels supporting isolated shunt current measurement with fast comparator-filtered overcurrent response.

Key Specifications

Pinout & Package

Package: 176-pin PowerPAD™ Thermally Enhanced Low-Profile Quad Flatpack (HLQFP), with exposed thermal pad soldered to PCB ground plane for optimal heat dissipation and digital ground return.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28377DPTPEP, the TMS320F28379DPTP offers identical real-time control capability at lower cost but no extended temperature or EP traceability, while the TMS320F28388DPTP adds EtherCAT and larger memory at the expense of increased BOM complexity and layout revision needs.

Availability

TMS320F28377DPTPEP is available at Aetrix Electronics and suitable for aerospace avionics, defense electronics, and industrial transport systems requiring stable component supply across extended product lifecycles and extreme temperature operation.

Supply support for TMS320F28377DPTPEP 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 deep expertise in high-reliability microcontrollers for industrial and aerospace markets.

The TMS320F28377DPTPEP belongs to TI's Delfino™ C2000™ real-time control MCU family, engineered specifically for deterministic, high-precision closed-loop systems in motor control, power conversion, and transportation where computational throughput, analog fidelity, and functional safety converge.

FAQ

What is the operating temperature range of the TMS320F28377DPTPEP?

The TMS320F28377DPTPEP is rated for –55°C to 125°C operation, meeting extended temperature requirements for defense, aerospace, and industrial transport applications. This range is validated under controlled baseline manufacturing with full traceability, unlike commercial variants such as the TMS320F28379DPTP which only supports 0°C to 105°C.

Does the TMS320F28377DPTPEP support pin-compatible migration from earlier C2000 devices?

No, the TMS320F28377DPTPEP uses a 176-pin HLQFP (PTP) package with unique pin assignments optimized for its dual-core architecture and expanded peripherals. Migration from prior generations like the F28335 requires PCB redesign; however, TI provides migration guides and HAL libraries to ease firmware adaptation for the TMS320F28377DPTPEP.

How does the CLA coprocessor in the TMS320F28377DPTPEP improve real-time performance?

The TMS320F28377DPTPEP integrates two independent 32-bit floating-point CLA coprocessors, each running at 200 MHz and triggered by peripheral events (e.g., ADC EOC or PWM timer). This offloads time-critical tasks-such as current loop PI calculation or space-vector modulation-from the main C28x CPU, reducing jitter and enabling deterministic sub-µs control cycles without increasing core clock frequency.

What analog features make the TMS320F28377DPTPEP suitable for isolated current sensing?

The TMS320F28377DPTPEP includes an eight-channel Sigma-Delta Filter Module (SDFM) that pairs with external Σ-Δ modulators to digitize isolated shunt currents. Its hardware comparator subsystem with 12-bit DAC references enables immediate overcurrent detection (<2 µs), while four independent 16-bit ADCs provide high-fidelity voltage and temperature sampling-all synchronized via shared ePWM triggers for precise phase alignment in the TMS320F28377DPTPEP.

Is the TMS320F28377DPTPEP qualified for safety-critical applications like ISO 26262 or DO-254?

The TMS320F28377DPTPEP is not pre-certified to ISO 26262 or DO-254, but its EP qualification-including controlled baseline, extended temperature validation, full traceability, and dual-zone security-provides the foundational hardware assurance required for customer-led certification. System integrators use its deterministic dual-core architecture, ECC memory, and lockstep-capable peripherals to build ASIL-D or DAL-A compliant subsystems around the TMS320F28377DPTPEP.