P89LPC930 概述

P89LPC930是一款单片封装的微控制器，适用于要求高度集成、低成本的应用场合，可以满足多种多样的性能要求。P89LPC930基于高性能的处理架构，执行指令仅需2到4个时钟周期，速度是标准80C51器件的6倍。P89LPC930集成了多种系统级功能，以便极大减少元件数目和减小电路板面积，从而降低系统成本。

P89LPC930 特性

• high performance 80C51 CPU provides instruction cycle times of 111 ns to 222 ns for all instructions except multiply and divide when executing at 18 MHz. This is 6 times the performance of the standard 80C51 running at the same clock frequency. A lower clock frequency for the same performance results in power savings and reduced EMI.
• 2.4 V to 3.6 V V_DD operating range. I/O pins are 5 V tolerant (may be pulled up or driven to 5.5 V).
• 4 kB/8 kB Flash code memory with 1 kB sectors, and 64-byte page size.
• Byte-erase allowing code memory to be used for data storage.
• Flash program operation completes in 2 ms.
• Flash erase operation completes in 2 ms.
• 256-byte RAM data memory.
• Two 16-bit counter/timers. Each timer may be configured to toggle a port output upon timer overflow or to become a PWM output.
• Real-Time clock that can also be used as a system timer.
• Two analog comparators with selectable inputs and reference source.
• 400 kHz byte-wide I2C-bus communication port.
• SPI communication port.