It runs at 100 MHz and carries 256 KB of Flash program memory organized as 128K x 16, plus 18K x 16 of RAM.
The 100 MHz clock rate on this fixed-point C28x core delivers roughly 100 MIPS of signal-processing throughput.
Lifecycle reality — obsolete, no direct replacement listed
The TMS320F2809ZGMS is marked obsolete by Texas Instruments.
Memory and peripherals for the BOM
256 KB of Flash is enough for a complete motor-control or power-conversion firmware stack with lookup tables and fault handlers. The 18K x 16 RAM supports moderate data buffers and state variables. The 16-channel 12-bit ADC samples at rates sufficient for current sensing in a typical field-oriented control loop. CAN and SCI interfaces handle vehicle network and debug UART traffic.