The Texas Instruments TMS320F241FN is a 16-bit fixed-point DSP from the C24x family, clocked at 20 MHz with 16 KB of on-chip Flash program memory and 1K x 8 RAM. It integrates a C2xx DSP core, a 10-bit 8-channel ADC, and peripherals including CAN, SCI, SPI, and UART interfaces, plus PWM and watchdog timer.
Obsolete — sourcing reality for the TMS320F241FN
Memory and peripheral fit for the BOM
The 16 KB Flash (8K x 16) and 1K x 8 RAM are modest by modern standards. Firmware for a typical motor-control or power-conversion application from the early 2000s fits within this footprint, but adding features or patches may exceed it. The 26 I/O pins, CAN 2.0B controller, and two serial interfaces (SCI, SPI) cover most industrial fieldbus and sensor connections. The 8-channel 10-bit ADC samples at rates adequate for current sensing and position feedback in low-to-mid-speed drives. The 68-PLCC package with J-leads is surface-mount; a socket is recommended for prototyping to avoid thermal stress during rework.
