GENERAL DESCRIPTION
The P80CL410; P83CL410 (hereafter generally referred to as the P8xCL410) is manufactured in an advanced CMOS technology that allows the device to operate at voltages down to 1.8 V and at frequencies down to DC. The P8xCL410 has the same instruction set as the 80C51.

FEATURES
• Full static 80C51 Central Processing Unit
• 8-bit CPU, ROM, RAM, I/O in a 40-lead DIP, 40-lead VSO or 44-lead QFP package
• 128 bytes on-chip RAM Data Memory
• 4 kbytes on-chip ROM Program Memory for P83CL410
• External memory expandable up to 128 kbytes: RAM up to 64 kbytes and ROM up to 64 kbytes
• Four 8-bit ports; 32 I/O lines
• Two 16-bit Timer/Event counters
• On-chip oscillator suitable for RC, LC, quartz crystal or ceramic resonator
• Thirteen source, thirteen vector, nested interrupt structure with two priority levels
• 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 128 bytes)
    – multiply, divide, subtract and compare instructions
• Reduced power consumption through Power-down and Idle modes
• Wake-up via external interrupts at Port 1
• Frequency range: DC to 12 MHz
• Supply voltage: 1.8 to 6.0 V
• Very low current consumption
• Operating ambient temperature range: −40 to +85 °C.

APPLICATIONS
    The P8xCL410 is an 8-bit general purpose microcontroller especially suited for battery-powered applications.
    The P8xCL410 also functions as an arithmetic processor having facilities for both binary and BCD arithmetic plus bit-handling capabilities.