P89LPC9221 Datasheet | NXP Semiconductors

P89LPC920/921/922/9221 8-bit microcontrollers with two-clock 80C51 core 2 k B/4 k B/8 k B 3 V low-power Flash with 256-byte data RAM Rev. 08 - 15 December 2004 Product data 1. General description The P89LPC920/921/922/9221 are single-chip microcontrollers designed for applications demanding high-integration, low cost solutions over a wide range of performance requirements. The P89LPC920/921/922/9221 is 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 P89LPC920/921/922/9221 in order to reduce ponent count, board space, and system cost. 2. Features 2.1 Principal Features s 2 k B/4 k B/8 k B Flash code memory with 1 k B erasable sectors, 64-byte erasable page size, and single byte erase. s 256-byte RAM data memory. s Two 16-bit counter/timers. Each timer may be configured to toggle a port output upon timer overflow or to bee a PWM output. s Real-Time clock that can also be used as a system timer. s Two analog parators with selectable inputs and reference source. s Enhanced UART with fractional baud rate generator, break detect, framing error detection, automatic address detection and versatile interrupt capabilities. s 400 k Hz byte-wide I2C-bus munication port. s Configurable on-chip oscillator with frequency range and RC oscillator options (selected by user programmed Flash configuration bits). The RC oscillator (factory calibrated to ±1 %) option allows operation without external oscillator ponents. Oscillator options support frequencies from 20 k Hz to the maximum operating frequency of 18 MHz. The RC oscillator option is selectable and fine tunable. s 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). s High drive current (20 m A) on eight I/O pins on the P89LPC9221 (P0.3 to P0.7, P1.4, P1.6, P1.7). Philips Semiconductors P89LPC920/921/922/9221 8-bit...