Texas Instruments TMS320F28377SZWTS

Overview

TMS320F28377SZWTS from Texas Instruments is a 32-bit floating-point real-time microcontroller featuring a 200MHz C28x CPU, IEEE 754 FPU, Trigonometric Math Unit (TMU), Viterbi/Complex Math Unit (VCU-II), and a parallel 200MHz Control Law Accelerator (CLA). It integrates four 16-/12-bit ADCs (up to 4.4MSPS system throughput), 24 ePWM channels with 16 high-resolution outputs, dual CAN modules, USB 2.0 (MAC+PHY), and 169 GPIOs - deployed in industrial motor drives, solar inverters, and EV charging power modules.

For engineers reviewing the TMS320F28377SZWTS datasheet, TMS320F28377SZWTS pinout, TMS320F28377SZWTS application, or TMS320F28377SZWTS equivalent, key selection criteria include CLA coprocessing capability, dual-zone security for third-party IP protection, ASIL B/SIL 2 functional safety certification, 1MB ECC-protected flash, and nFBGA-337 packaging for high-density thermal management in closed-loop control systems.

Technical Context

The TMS320F28377SZWTS implements a single-CPU subsystem (C28x + CLA) architecture derived from the F2837xD family but with one subsystem disabled - retaining full peripheral complement including dual EMIFs, six eCAPs, three eQEPs, and eight SDFM channels. Its analog subsystem supports simultaneous 16-bit (1.1MSPS) and 12-bit (3.5MSPS) ADC modes with hardware post-processing (windowed comparators, DAC-referenced thresholds, error-from-setpoint calculation).

System-level timing relies on two internal zero-pin 10MHz oscillators plus an on-chip crystal oscillator, while power integrity is maintained via 1.2V core and 3.3V I/O domains. Functional safety compliance includes ISO 26262 ASIL B and IEC 61508 SIL 2 certification by TÜV SÜD, with hardware BIST and dual-code security module enabling secure boot and memory zone isolation.

Key Specifications

Pinout & Package

337-ball New Fine Pitch Ball Grid Array (nFBGA), 16mm × 16mm body size, lead-free/green packaging. Pin assignments follow TI's ZWT mechanical layout with quadrant-based ball mapping (A–D) supporting 169 GPIOs, dual CAN transceivers, USB DP/DM, EMIF data/address buses, and dedicated analog reference pins (VREFHIA/VREFLOA, etc.).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28377SZWTS, the PTP variant trades I/O density and EMIF flexibility for simpler assembly and lower thermal impedance, while the F28379S offers immediate compute headroom and memory expansion within identical board layout - making it ideal for phased performance upgrades.

Availability

TMS320F28377SZWTS is available at Aetrix Electronics and suitable for industrial motor drives, solar power optimizers, and EV charging station power modules requiring stable component supply across extended product lifecycles.

Supply support for TMS320F28377SZWTS 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 personal electronics markets.

The TMS320F28377SZWTS belongs to TI's C2000™ real-time control MCU product line, engineered specifically for high-precision, low-latency closed-loop control in power electronics - emphasizing computational throughput, analog integration, and functional safety readiness.

FAQ

What is the maximum ADC sampling rate achievable with TMS320F28377SZWTS in 16-bit mode?

The TMS320F28377SZWTS supports up to 1.1MSPS per ADC in 16-bit mode, with four independent ADCs enabling a total system throughput of 4.4MSPS. Each ADC features differential inputs and hardware post-processing including saturation calibration and windowed comparison - allowing concurrent high-fidelity sampling across multiple current/voltage sensors in power converter applications without CPU overhead.

Does TMS320F28377SZWTS support functional safety certification for industrial systems?

Yes, TMS320F28377SZWTS is certified to IEC 61508 up to SIL 2 and ISO 26262 up to ASIL B by TÜV SÜD. It includes hardware BIST, dual-code security module, ECC-protected memory, and documentation packages to support system-level safety design - making it suitable for industrial PLCs, UPS systems, and grid-tied inverters requiring formal safety compliance.

How many high-resolution PWM (HRPWM) channels does TMS320F28377SZWTS provide?

TMS320F28377SZWTS provides 16 high-resolution PWM channels across eight ePWM modules, with both A and B outputs supporting sub-nanosecond resolution. This enables precise dead-time insertion and phase-shift control for SiC/GaN-based topologies such as totem-pole PFC and dual-active bridge converters - critical for minimizing switching losses and EMI in high-frequency power designs.

Can TMS320F28377SZWTS execute code independently on its CLA coprocessor?

Yes, the CLA in TMS320F28377SZWTS is a fully autonomous 32-bit floating-point processor that runs at 200MHz and executes code independently of the main C28x CPU. It responds to peripheral triggers (e.g., ADC end-of-conversion, ePWM period match) and uses dedicated message RAM for inter-processor communication - enabling true parallelism for time-critical control loops without CPU contention.

What package type and ball count does TMS320F28377SZWTS use?

TMS320F28377SZWTS uses the 337-ball New Fine Pitch Ball Grid Array (nFBGA) package with ZWT suffix, measuring 16mm × 16mm. This package supports 169 GPIOs, dual CAN, USB 2.0, and EMIF interfaces while providing superior thermal performance for high-power density applications like motor drives and solar inverters.