Description
Full static 80C51 CPU - 8-bit CPU, ROM, RAM, I/O in a 40-lead DIP or 44-lead QFP package - 16 kbytes ROM, expandable externally to 64 kbytes - 256 bytes RAM, expandable externally to 64 kbytes - Four 8-bit ports, 32 I/O lines - Three 16-bit timer/event counters - External memory expandable up to 128 kbytes: RAM up to 64 kbytes and ROM up to 64 kbytes - On-chip oscillator suitable for RC, LC, quartz crystal or ceramic resonator - Fifteen source, fifteen vector interrupt structure with two priority levels - Full duplex serial port (UART) - I2C-bus interface for serial transfer on two lines - Enhanced architecture with: - non-page oriented instructions - direct addressing - four 8 byte RAM register banks - stack depth limited only by available internal RAM (maximum 256 bytes) - multiply, divide, subtract and pare instructions - Reduced power consumption through Power-down and Idle modes - Wake-up via external interrupts at Port 1 - Single supply voltage of 1.8 to 6.0 V - Operating ambient temperature: - 83CL781: -40 to +85 °C - 83CL782: -25 to +55 °C.
