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P80CL51HFP Datasheet(PDF) 3 Page - NXP Semiconductors |
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P80CL51HFP Datasheet(HTML) 3 Page - NXP Semiconductors |
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3 / 68 page  1997 Apr 15 3 Philips Semiconductors Product specification Low voltage 8-bit microcontrollers with UART P80CL31; P80CL51 1 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 P80CL51 • 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 • Full duplex serial port (UART) • 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: 0 to 16 MHz (P80C51: 3.5 MHz min.) • Supply voltage: 1.8 to 6.0 V (P80C51: 5.0 V ±10%) • Very low current consumption • Operating ambient temperature range: −40 to +85 °C. 2 GENERAL DESCRIPTION The P80CL31; P80CL51 (hereafter generally referred to as the P80CLx1) is manufactured in an advanced CMOS technology. The P80CLx1 has the same instruction set as the 80C51, consisting of over 100 instructions: 49 one-byte, 46 two-byte, and 16 three-byte. The device operates over a wide range of supply voltages and has low power consumption; there are two software selectable modes for power reduction: Idle and Power-down. For emulation purposes, the P85CL000 (piggy-back version) with 256 bytes of RAM is recommended. This data sheet details the specific properties of the P80CL31; P80CL51. For details of the 80C51 core see “Data Handbook IC20”. 2.1 Versions: P80CL31 and P80C51 The P80CL31 is the ROMless version of the P80CL51. The mask options on the P80CL31 are fixed as follows: • All ports have option ‘1S’ (standard, HIGH after reset) • Oscillator option: Oscillator 3 • Power-on-reset option: OFF. The P80C51 is a restricted-voltage range version of the P80CL51. The operating voltage is 5.0 V ±10%. 3 APPLICATIONS The P80CLx1 is especially suited for real-time applications such as instrumentation, industrial control, intelligent computer peripherals and consumer products. The P80CLx1 also functions as an arithmetic processor having facilities for both binary and BCD arithmetic plus bit-handling capabilities. |
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