P89LPC971

www.DataSheet4U.com P89LPC970/971/972 8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB wide-voltage byte-erasable flash Rev. 02 — 27 April 2010 Product data sheet 1. General description The P89LPC970/971/972 is a single-chip microcontroller, available in low cost packages, based on a high performance processor architecture that executes instructions in two to four clocks, six times the rate of standard 80C51 devices. Many system-level functions have been incorporated into the P89LPC970/971/972 in order to reduce component count, board space, and system cost. 2. Features and benefits 2.1 Principal features „ 2 kB/4 kB/8 kB byte-erasable flash code memory organized into 1 kB sectors and 64-byte pages. Single-byte erasing allows any byte(s) to be used as non-volatile data storage. „ 256-byte RAM data memory. „ Two analog comparators with selectable inputs and reference source. „ Five 16-bit counter/timers (each may be configured to toggle a port output upon timer overflow or to become a PWM output). „ A 23-bit system timer that can also be used as real-time clock consisting of a 7-bit prescaler and a programmable and readable 16-bit timer. „ Enhanced UART with a fractional baud rate generator, break detect, framing error detection, and automatic address detection; 400 kHz byte-wide I2C-bus communication port. „ SPI communication port (pin remap). „ High-accuracy internal RC oscillator option 7.373 MHz calibrated to ±1 %, with clock doubler option, al...