A 32 bit microcontroller with an embedded flash EEPROM

The development of a versatile 32 bit microcontroller containing various peripheral functional modules including a 512 K bit flash EEPROM is described. A modular process approach was employed to integrate high voltage transistors and flash EEPROM cells into the baseline 08 mu m twin well double metal CMOS process. A modular circuit design approach was utilized to simplify chip design and to reduce development time.<
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