8051 core with 24 KB on-chip flash
The Infineon SAF-XC888LM-6FFI3V3AC is an 8-bit microcontroller built around the XC800 core, an 8051-compatible architecture. It runs at 24 MHz and carries 24 KB of on-chip flash program memory, with 1.75 KB of RAM for data. The 24 KB flash is a practical size for a single-purpose control loop — a motor commutation routine, a LIN slave node, or a sensor hub — without needing external memory. The 1.75 KB RAM is tight for a heavy protocol stack; budget the stack and buffer footprint before committing the firmware.
The 8-channel 10-bit SAR ADC is shared across eight inputs via an analog mux; the conversion rate depends on the ADC clock and the number of active channels.
Connectivity and I/O in a 64-pin LQFP
48 I/O lines are brought out in a 64-pin LQFP (PG-TQFP-64 package). The pin count gives enough headroom for a parallel LCD interface, a keypad matrix, and a few sensor interrupts alongside the serial buses. Serial connectivity includes LIN, SSC (Infineon's SPI-compatible synchronous serial channel), and UART/USART — covering the common automotive and industrial field buses. The LIN interface makes this part a natural fit for a local interconnect network slave node in a vehicle body controller or a sensor cluster.
Because it is an active part, it is sourced through authorized distribution channels.