Single accumulator Harvard architecture

MCS-51 Family
8031-8-Bit Control-Oriented Microcontroller
8032-8-Bit Control-Oriented Microcontroller
8051-8-Bit Control-Oriented Microcontroller
8052-8-Bit Control-Oriented Microcontroller
8054-8-Bit Control-Oriented Microcontroller
8058-8-Bit Control-Oriented Microcontroller
8351-8-Bit Control-Oriented Microcontroller
8352-8-Bit Control-Oriented Microcontroller
8354-8-Bit Control-Oriented Microcontroller
8358-8-Bit Control-Oriented Microcontroller
8751-8-Bit Control-Oriented Microcontroller
8752-8-Bit Control-Oriented Microcontroller
8754-8-Bit Control-Oriented Microcontroller
8758-8-Bit Control-Oriented Microcontroller
80151-8-Bit Control-Oriented Microcontroller
83151-8-Bit Control-Oriented Microcontroller
87151-8-Bit Control-Oriented Microcontroller
80152-8-Bit Control-Oriented Microcontroller
83152-8-Bit Control-Oriented Microcontroller
80251-8-Bit Control-Oriented Microcontroller
83251-8-Bit Control-Oriented Microcontroller
87251-8-Bit Control-Oriented Microcontroller