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General description

The P89LPC915/916/917 are single-chip microcontrollers, 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 P89LPC915/916/917 in order to reduce component count, board space, and system cost.

Features

Principal features

■ 2 kB byte-erasable flash code memory organized into 256-byte sectors and 16-byte pages. Single-byte erasing allows any byte(s) to be used as non-volatile data storage.

■ 256-byte RAM data memory.

■ Two 16-bit counter/timers. Timer 0 (and Timer 1 - P89LPC917) may be configured to toggle a port output upon timer overflow or to become a PWM output.

■ 23-bit system timer that can also be used as a Real-Time clock.

■ 4-input multiplexed 8-bit A/D converter/single DAC output. Two analog comparators with selectable reference.

■ Enhanced UART with fractional baud rate generator, break detect, framing error detection, automatic address detection and versatile interrupt capabilities.

■ SPI communication port (P89LPC916).

■ Internal RC oscillator option allows operation without external oscillator components. The RC oscillator (factory calibrated to ±1 ) option is selectable and fine tunable.

■ 2.4 V to 3.6 V VDD operating range. I/O pins are 5 V tolerant (may be pulled up or driven to 5.5 V).

■ Up to 14 I/O pins when using internal oscillator and reset options (P89LPC916, P89LPC917).