What this part is and where it fits
The Texas Instruments TMS320F28335PTPQ is a 32-bit single-core C28x Delfino microcontroller qualified to AEC-Q100. It runs at 150 MHz and carries 512 KB of Flash program memory plus 34K x 16 of RAM, with 88 general-purpose I/O lines.
Automotive temperature grade and qualification
Rated for -40°C to 125°C ambient, this MCU lives comfortably in an engine bay, transmission controller, or outdoor industrial cabinet. The AEC-Q100 qualification means the silicon has passed the full suite of accelerated stress tests — extended temperature cycling, high-temperature operating life, and latch-up immunity. For a production BOM that needs to survive under-hood thermal profiles, this is the grade to specify.
Lifecycle and sourcing reality
The TMS320F28335PTPQ is flagged as end-of-life hot (EOL hot) — TI has issued a discontinuation notice. The part is still available through independent distribution, sourced and quoted to order against an RFQ.
Package and mounting
Housed in a 176-lead LQFP with an exposed pad (24x24 mm body), this is a surface-mount part. The exposed pad needs a thermal via array under the die area to pull heat into the ground plane.
Connectivity and peripherals
On the communication side, this MCU packs CAN, I²C, SPI, UART, and McBSP — enough to talk to a resolver interface, an encoder, and a CANopen fieldbus on the same chip. The 16-channel 12-bit ADC with built-in sample-and-hold handles three-phase current sensing plus a DC-link voltage measurement in one conversion sequence. DMA offloads the core during high-speed data transfers, and the PWM module supports dead-band insertion and trip-zone logic for fault handling.