MV20556 controller equivalent, 8-bit mcu mouse controller.
General 8051 instruction family compatible Operate at voltage 5.0V. No External Memory is supported 8 bit bus I/O ports 4 K byte ROM 128 byte RAM 128 byte depth stack Two.
which needs up to 4K byte internal memory either for program or for data and mixed. A serial input / output port is prov.
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