Texas Instruments F28388DPTPSR

Overview

TMS320F28388DPTPSR 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 - designed for high-fidelity motor control, digital power conversion, and industrial Ethernet edge nodes requiring deterministic latency and protocol offload.

For engineers reviewing the TMS320F28388DPTPSR datasheet, TMS320F28388DPTPSR pinout, TMS320F28388DPTPSR application, or TMS320F28388DPTPSR equivalent, key selection criteria include dual-core C28x + Cortex-M4 partitioning, EtherCAT Slave Controller integration, CAN FD support, 32-channel high-resolution PWM, and functional safety certification up to ASIL B/SIL 2.

Technical Context

The TMS320F28388DPTPSR implements two independent 200 MHz C28x CPUs with dedicated 512KB flash (ECC), 44KB local RAM, and 128KB global shared RAM, each augmented by a 200 MHz Control Law Accelerator (CLA) executing floating-point control loops autonomously. The Arm Cortex-M4 Connectivity Manager runs at 125 MHz with 512KB ECC flash and 96KB RAM, handling Ethernet 1588, USB 2.0, and EtherCAT traffic independently of real-time control paths.

Hardware coherency is maintained via IPC messaging, MSGRAM interconnect, and dual-zone security. Analog subsystem includes four 16-bit/12-bit ADCs (1.1 MSPS/3.5 MSPS), eight windowed comparators with DAC references, and three buffered 12-bit DACs - tightly synchronized to PWM timing for closed-loop precision.

Key Specifications

Pinout & Package

Package: 176-pin PowerPAD™ Thermally Enhanced Low-profile Quad Flatpack (HLQFP), 24 mm × 24 mm body, lead-free/green compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28386DPTPSR, the TMS320F28388DPTPSR delivers dual-C28x determinism and EtherCAT offload at higher BOM cost; versus TMS320F28388DZWT, it trades pin count and thermal headroom for simpler PCB routing and lower assembly cost in HLQFP form factor.

Availability

TMS320F28388DPTPSR is available at Aetrix Electronics and suitable for industrial motor drives, solar inverters, and automotive on-board chargers requiring stable component supply, long-term lifecycle assurance, and functional safety documentation support.

Supply support for TMS320F28388DPTPSR 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 connectivity technologies for industrial, automotive, and power electronics markets.

The TMS320F28388DPTPSR belongs to TI's C2000™ real-time MCU product line, engineered specifically for ultra-low-latency control in power electronics - including SiC/GaN-based converters, servo drives, and renewable energy systems.

FAQ

What is the core architecture of the TMS320F28388DPTPSR?

The TMS320F28388DPTPSR integrates two independent 200 MHz TMS320C28x DSP cores and a 125 MHz Arm Cortex-M4 Connectivity Manager. Each C28x core has its own 512KB ECC-protected flash and 44KB local RAM, while the Cortex-M4 includes 512KB flash and 96KB RAM. This heterogeneous architecture enables concurrent real-time control and protocol processing without resource contention - a defining feature of the TMS320F28388DPTPSR.

Does the TMS320F28388DPTPSR support EtherCAT communication?

Yes, the TMS320F28388DPTPSR includes a hardware EtherCAT Slave Controller (ESC) with dual-port PHY interface, enabling full EtherCAT compliance without CPU intervention. The ESC handles frame processing, synchronization, and distributed clock management in hardware - a key differentiator of the TMS320F28388DPTPSR versus earlier C2000 devices.

What package type does the TMS320F28388DPTPSR use?

The TMS320F28388DPTPSR uses a 176-pin PowerPAD™ Thermally Enhanced Low-profile Quad Flatpack (HLQFP) package, measuring 24 mm × 24 mm with exposed thermal pad. This package provides robust thermal dissipation for high-power control applications and supports standard surface-mount assembly processes - confirmed in TI's SPRSP14E datasheet for the TMS320F28388DPTPSR.

Is the TMS320F28388DPTPSR certified for functional safety applications?

Yes, the TMS320F28388DPTPSR is ISO 26262 certified up to ASIL B and IEC 61508 certified up to SIL 2 by TÜV SÜD. It includes hardware safety mechanisms such as ECC memory, windowed watchdog timers, missing-clock detection, and dual-clock comparators - all documented in the TMS320F28388DPTPSR functional safety manual.

How many high-resolution PWM channels does the TMS320F28388DPTPSR support?

The TMS320F28388DPTPSR supports 32 ePWM channels, with high-resolution capability enabled on both A and B channels of eight PWM modules (16 total high-res channels). Each high-resolution channel achieves 150-ps timing resolution, essential for precise gate driving in GaN and SiC power stages - a verified specification in the TMS320F28388DPTPSR datasheet Section 7.12.