AT80C31X2 Datasheet | Atmel

Features - - - - - - - - - - - - - - - - - - - - - - - - - .. 80C31 patible 8031 pin and instruction patible Four 8-bit I/O ports Two 16-bit timer/counters 128 bytes scratchpad RAM High-Speed Architecture 40 MHz @ 5V, 30MHz @ 3V X2 Speed Improvement capability (6 clocks/machine cycle) 30 MHz @ 5V, 20 MHz @ 3V (Equivalent to 60 MHz @ 5V, 40 MHz @ 3V) Dual Data Pointer Asynchronous port reset Interrupt Structure with 5 Interrupt sources, 4 priority level interrupt system Full duplex Enhanced UART Framing error detection Automatic address recognition Power Control modes Idle mode Power-down mode Power-off Flag Once mode (On-chip Emulation) Power supply: 4.5-5.5V,...