Texas Instruments F28M36H33B2ZWTT

Overview

F28M36H33B2ZWTT from Texas Instruments is a dual-core Concerto™ microcontroller integrating an Arm® Cortex®-M3 (100 MHz) and a TMS320C28x (150 MHz) real-time control CPU on a single die, with 512KB ECC flash per core, dual 12-bit ADCs (2.88 MSPS total), 12 ePWM modules (24 outputs), and 6 comparators with integrated DACs. It targets high-precision industrial motor drives and power conversion systems requiring concurrent communication and deterministic control.

For engineers reviewing the F28M36H33B2ZWTT datasheet, F28M36H33B2ZWTT pinout, F28M36H33B2ZWTT application, or F28M36H33B2ZWTT equivalent, key selection criteria include its 289-ball ZWT nFBGA package, –40°C to 105°C temperature grade, absence of Ethernet/USB-OTG (vs. P-series), and shared 64KB parity RAM - critical for safety-certified inverter and servo drive designs.

Technical Context

The device implements tightly coupled interprocessor communication (IPC) via 32 handshaking channels and dual 2KB message RAMs, enabling deterministic data exchange between M3 and C28x subsystems without bus contention. Clocking supports independent PLL configuration: M3 runs at 100 MHz while C28x operates at 150 MHz, maintaining integer divide ratios required for ADC synchronization.

Analog subsystem integration includes two independent 12-bit ADCs with 24 total input channels, four sample-and-hold circuits, and six comparator/DAC units - all sharing common voltage references (VDDA/VSSA) and supporting simultaneous sampling for vector-controlled motor algorithms. Safety features include ECC on flash/RAM, parity on SRAM, and dual security zones with 128-bit passwords.

Key Specifications

Pinout & Package

Package: 289-ball ZWT New Fine Pitch Ball Grid Array (nFBGA), 16.0 mm × 16.0 mm body size, 0.8 mm ball pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-core microcontroller applications.

Compared with F28M36P63C2ZWTT, F28M36H33B2ZWTT removes Ethernet/USB to lower cost and power, while retaining identical C28x performance and analog capability; versus TMS320F28388D, it trades dual-C28x determinism for Arm-based protocol stack offload - making it optimal for cost-sensitive inverters needing CAN + motor control in one chip.

Availability

F28M36H33B2ZWTT is available at Aetrix Electronics and suitable for industrial motor drives, solar inverters, and uninterruptible power supplies requiring stable component supply across extended product lifecycles.

Supply support for F28M36H33B2ZWTT 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 digital signal processing technologies for industrial, automotive, and communications markets.

The F28M36x Concerto™ family was designed to unify communication and real-time control subsystems on a single chip - targeting solar inverters, motor drives, and industrial automation where separation of protocol handling and deterministic control improves system reliability and reduces bill-of-materials.

FAQ

What is the maximum operating frequency of the Arm Cortex-M3 core in the F28M36H33B2ZWTT?

The Arm Cortex-M3 core in the F28M36H33B2ZWTT operates at a maximum frequency of 100 MHz. This speed is fixed for this variant and differs from the P-series (125 MHz). The 100-MHz rating is confirmed in Table 3-1 of the SPRS825F datasheet and enables deterministic execution of communication stacks while maintaining safe clock domain boundaries with the 150-MHz C28x subsystem. F28M36H33B2ZWTT uses this frequency to balance performance, power, and thermal constraints in sealed industrial enclosures.

Does the F28M36H33B2ZWTT support Ethernet or USB connectivity?

No, the F28M36H33B2ZWTT does not include Ethernet or USB-OTG peripherals. As shown in Table 3-1 of the SPRS825F datasheet, these features are present only in the P63C2 and P53C2 variants. The H33B2 variant omits both 10/100 ENET 1588 MII and USB-OTG + PHY to reduce cost and silicon area - making F28M36H33B2ZWTT ideal for CAN/UART-based motor drives where network connectivity is handled externally.

How much shared RAM is available on the F28M36H33B2ZWTT?

The F28M36H33B2ZWTT provides 0 KB of shared RAM, as explicitly stated in Table 3-1 under the "Shared" section. This contrasts with the P63C2/P53C2 variants (64 KB shared RAM) and reflects the H-series' focus on cost-optimized control applications where inter-subsystem data exchange relies solely on the dual 2KB IPC message RAMs rather than large shared buffers. F28M36H33B2ZWTT uses this architecture to simplify memory management and reduce silicon overhead.

What analog peripherals are integrated into the F28M36H33B2ZWTT?

The F28M36H33B2ZWTT integrates dual 12-bit analog-to-digital converters (ADCs) with up to 2.88 MSPS aggregate sampling rate and 24 total input channels, four sample-and-hold circuits, and six analog comparators each paired with a 10-bit DAC. These are documented in Section 1.1 and Table 3-1 of the SPRS825F datasheet. F28M36H33B2ZWTT uses this analog subsystem to perform simultaneous current sensing, voltage monitoring, and fast overcurrent protection in motor drive applications without external signal conditioning.

Is the F28M36H33B2ZWTT pin-compatible with other F28M36x devices in the ZWT package?

Yes, the F28M36H33B2ZWTT is pin-compatible with all other F28M36x devices in the 289-ball ZWT nFBGA package, including F28M36P63C2ZWTT and F28M36H53B2ZWTT. Pin diagrams in Section 4.1 and signal descriptions in Table 4-1 of SPRS825F confirm identical ball mapping and electrical characteristics. F28M36H33B2ZWTT shares the same mechanical footprint and thermal pad layout, enabling drop-in replacement in existing PCB designs - though firmware must be adapted for missing Ethernet/USB peripherals.