ST90E31D6 8K EPROM HCMOS MCU WlTH A/D CONVERTER. 1 piece ST90E31D6 8K EPROM HCMOS MCU WITH A/D CONVERTER. Product Family: ST9 MCU. MCU 8/16bit ST6 - ST7 - ST9. • Up to seven 8 bit I/O ports with programmable input thresholds and output characteristics.
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