Texas Instruments F28384SZWTS

Overview

F28384SZWTS from Texas Instruments is a dual-CPU real-time microcontroller with integrated Arm Cortex-M4 connectivity manager, 200 MHz C28x DSP cores, IEEE 754 double-precision FPU, and 125 MHz CM subsystem. It delivers 512KB flash per C28x CPU, 128KB global RAM, 32-channel PWM, four 16-bit ADCs (1.1 MSPS), and EtherCAT Slave Controller - deployed in industrial servo drives and solar string inverters.

For engineers reviewing the F28384SZWTS datasheet, F28384SZWTS pinout, F28384SZWTS application, or F28384SZWTS equivalent, key selection criteria include dual-core deterministic control latency, CAN FD + EtherCAT coexistence, CLB-configurable logic for position management, and ASIL B/SIL 2 functional safety certification.

Technical Context

The F28384SZWTS implements two independent TMS320C28x CPUs at 200 MHz, each with dedicated 512KB ECC-protected flash and 44KB local RAM, plus 128KB parity-protected global RAM shared between them. Each CPU integrates a 200 MHz Control Law Accelerator (CLA) supporting IEEE 754 single-precision floating-point math and executing independently of the main CPU.

The Connectivity Manager (CM) is an Arm Cortex-M4 core running at 125 MHz with 512KB ECC-protected flash and 96KB protected RAM, hosting USB 2.0 (MAC+PHY), 10/100 Ethernet 1588, MCAN (CAN FD), and EtherCAT Slave Controller - all accessible via 32-channel µDMA and GCRC acceleration.

Key Specifications

Pinout & Package

337-ball nFBGA (ZWT package), 16 mm × 16 mm body, 0.65 mm ball pitch, lead-free/green compliant. Thermal pad on underside for enhanced power dissipation in motor control applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28384D, F28384SZWTS adds 20°C higher junction rating and full ASIL B qualification; compared with TMS320F28386S, it provides dual-C28x compute headroom, EtherCAT hardware offload, and CLB configurability - critical for complex servo and inverter topologies.

Availability

F28384SZWTS is available at Aetrix Electronics and suitable for industrial servo drives, solar string inverters, and automated sorting equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for F28384SZWTS 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 specializing in analog, embedded processing, and digital signal processing technologies, with over 50 years of leadership in industrial and automotive control solutions.

The TMS320F2838x product line targets high-performance real-time control in power electronics - specifically designed for GaN/SiC-based motor drives, renewable energy inverters, and safety-critical industrial automation systems.

FAQ

What is the maximum operating junction temperature for F28384SZWTS?

The F28384SZWTS is rated for a maximum junction temperature of 125°C, validated under continuous operation with proper PCB thermal design and airflow. This specification aligns with its S-grade industrial temperature qualification and enables deployment in high-power-density motor control enclosures where ambient temperatures exceed 85°C. The device's thermal resistance (θ_JA) is 22.5°C/W for the ZWT package, and thermal monitoring is supported via on-die temperature sensor and ERAD diagnostic module.

Does F28384SZWTS support pin-compatible migration from earlier C2000 devices?

No, F28384SZWTS is not pin-compatible with prior-generation C2000 MCUs such as F2837x or F28004x families due to its 337-ball nFBGA footprint, dual-core architecture, and expanded peripheral set. Migration requires PCB redesign and firmware adaptation. However, TI provides migration guides and C2000Ware SDK compatibility layers to ease software transition from F28379D or F280049C platforms to F28384SZWTS.

How is functional safety implemented in F28384SZWTS?

F28384SZWTS implements functional safety through hardware features including lockstep-capable CPU timers, windowed watchdogs, dual-zone DCSM security, BGCRC memory scanning, and ERAD real-time debug trace - all validated under ISO 26262 ASIL B and IEC 61508 SIL 2 by TÜV SÜD. These capabilities allow system designers to achieve ASIL D or SIL 3 at the vehicle/system level when combined with appropriate software diagnostics and architectural redundancy. Safety documentation and FMEDA reports are available directly from TI.

Can the CLB in F28384SZWTS replace external FPGA logic in motor control designs?

Yes, the Configurable Logic Block (CLB) in F28384SZWTS provides eight independent logic tiles capable of implementing custom state machines, position manager logic, or high-speed encoder interfaces - eliminating need for external FPGA in many servo applications. Each tile supports LUTs, flip-flops, and carry chains, and integrates directly with ePWM/eQEP peripherals via dedicated XBAR routing. TI provides CLB configuration tools and reference designs for resolver-to-digital conversion and dual-loop encoder interpolation.

What communication protocols does F28384SZWTS support natively in hardware?

F28384SZWTS supports EtherCAT Slave Controller, MCAN (CAN FD), USB 2.0 (MAC+PHY), 10/100 Ethernet 1588, CM-UART, CM-I²C, and SSI in dedicated hardware blocks. The C28x subsystem adds four SPI, four SCI/UART, two I²C, PMBus, two McBSP, and FSI interfaces. All protocol stacks execute on the Cortex-M4 or CLA without consuming C28x CPU cycles - enabling concurrent real-time control and network communication.