The ST92F124/F150/F250 microcontroller is developed and manufactured by STMicroelectronics using a proprietary n-well HCMOS process. Its performance derives from the use of a flexible 256-register programming model for ultra-fast context switching and real-time event response. The intelligent on-chip peripherals offload the ST9 core from I/O and data management processing tasks allowing critical application tasks to get the maximum use of core resources. The new-generation ST9 MCU devices now also support low power consumption and low voltage operation for power-efficient and low-cost embedded systems.
Internal memory: Single Voltage Flash up to 256 Kbytes, RAM up to 8 Kbytes, 1 Kbyte E3 TM (Emulated EEPROM)
In-Application Programming (IAP)
224 general purpose registers (register file) available as RAM, accumulators or index pointers
Clock, reset and supply management
Register-oriented 8/16 bit CORE with RUN, WFI, SLOW, HALT and STOP modes