DESCRIPTION

The 80CL51 is manufactured in an advanced CMOS technology. The instruction set of the 80CL51 is based on that of the 8051. The 80CL51 is a general purpose microcontroller especially suited for battery-powered applications.

FEATURES

• Full static 80C51 CPU

• 8-bit CPU, ROM, RAM, 1/0 in a single 40-lead DIL / mini-pack

• 4K x 8 ROM, expandable externally to 64K bytes

• 128 bytes RAM, expandable externally to 64K bytes

• Four 8-bit ports, 321/0 lines

• Two 16-bit timer / event counters

• External memory expandable up to 128K, external ROM up to 64K and / or RAM up to 64K

• On-chip oscillator suitable for RC, LC, quartz crystal or ceramic resonator

• Thirteen source, thirteen vector interrupt structure with two priority levels

• Full duplex serial port (UART)

• Enhanced architecture with:

– non-page oriented instructions

– direct addressing

– four eight byte RAM register banks

– stack depth up to 128 bytes

– multiply, divide, subtract and compare instructions

• Power-Down and IDLE instructions

• Wake-up via external interrupts at Port 1

• Single supply voltage of 1.8V to 6.0V (5.0V ±10 for P80C51)

• Frequency range of 0 to 16MHz (3.5MHz to 16MHz for P80C51)

• Very low current consumption

• Operating temperature range: -40 to +85°C