Full PDF Text Transcription for ST90R40 (Reference)
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ST90R40. For precise diagrams, and layout, please refer to the original PDF.
ST90R40 ROMLESS HCMOS MCU WITH EEPROM, RAM AND AID CONVERTER • Register oriented 8/16 bit CORE with RUN, WFI and HALT modes • Minimum instruction cycle time:500ns (12M Hz...
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RUN, WFI and HALT modes • Minimum instruction cycle time:500ns (12M Hz internal) • ROMiess to allow maximum external memory flexibility • Internal Memory : RAM 256 bytes EEPROM 512 bytes 224 general purpose registers available as RAM, accumulators or index pointers (register file) • 80-pin Plastic Quad Flat Pack Package for ST90R40Q • 68-lead Plastic Leaded Chip Carrier package for ST90R40C • DMA controller, Interrupt handler and Serial Peripheral Interface as standard features • 40 fully programmable 1/0 pins • Up to 8 external plus 1 non-maskable interrupts • 16 bit Timer with 8 bit Prescaler, able to be used as a Watchd