STMicroelectronics ST9291
The ST9291 is a ROM member of the ST9 family of microcontrollers, completely developed and produced by SGS-THOMSON Microelectronics using a proprietary n-well HCMOS process. The ROM parts are fully compatible with their EPROM and OTP (One-Time Programmable) versions, which may be used for the prototyping and pre-production phases of development. The nucleus of the ST9291 is the advanced ST9 Core which includes the Central Processing Unit (CPU), the Register File, a 16-bit Timer/Watchdog with 8-bit Prescaler, a Serial Peripheral Interface supporting S-bus, I2C-bus and IM-bus Interface, plus two 8-bit I/O ports.
STMicroelectronics
