Obsolete — sourcing strategy for the TMS320F28232ZHHA
Any remaining stock is limited to existing inventory held by independent distributors and surplus brokers.
100 MHz C28x core — real-time control loop headroom
The C28x core runs at 100 MHz, which is the clock speed that determines how tight your control loop can be in a motor drive, digital power supply, or active filter application. At this frequency, a typical PID or Park/Clarke transform executes in under a microsecond, leaving margin for higher-level comms and diagnostics. The 128 KB of on-chip Flash (64K x 16) and 26K x 16 RAM set the firmware and data buffer ceiling. For a three-phase motor control algorithm with sensorless observers and CAN-based telemetry, this memory footprint is adequate — but you will need to budget carefully if adding OTA update staging or extensive lookup tables.
Automotive-grade silicon — AEC-Q100 and -40 to 85°C
This part carries AEC-Q100 qualification, meaning it was designed, fabricated, and tested to automotive reliability standards — extended temperature cycling, high-temperature operating life (HTOL), and electrostatic discharge (ESD) robustness beyond commercial-grade parts. The I/O bank operates from a separate supply, so plan for dual-rail sequencing if the design uses the internal POR.
179-ball BGA — layout and rework considerations
The 12x12 mm body is compact for the I/O count (88 available GPIOs), but the BGA package means visual inspection of solder joints is impossible — X-ray inspection is mandatory for production verification. For rework, the standard lead-free reflow profile for a BGA applies.
Peripheral set — CAN, SPI, I²C, and more
This is a full-featured set for automotive and industrial control: CAN for vehicle network or fieldbus gateway, SPI for external ADCs or DACs, and the EBI for parallel FRAM or SRAM expansion if the internal 26K x 16 RAM is insufficient. The 16-channel 12-bit ADC is integrated on-chip, which saves an external converter but limits resolution to 12 bits — adequate for current sensing in motor drives or voltage monitoring in power supplies, but not for precision instrumentation requiring 16+ bits.