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P89LPC912 Datasheet(PDF) 1 Page - NXP Semiconductors |
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P89LPC912 Datasheet(HTML) 1 Page - NXP Semiconductors |
1 / 66 page 1. General description The P89LPC912/913/914 are single-chip microcontrollers in low-cost 14-pin 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 P89LPC912/913/914 in order to reduce component count, board space, and system cost. 2. Features 2.1 Principal features I 1 kB byte-erasable flash code memory organized into 256 B sectors and 16 B pages. Single-byte erasing allows any byte(s) to be used as non-volatile data storage. I 128 B RAM data memory. I Two 16-bit counter/timers. Each timer may be configured to toggle a port output upon timer overflow or to become a PWM output. I 23-bit system timer that can also be used as a RTC. I Two analog comparators with selectable inputs and reference source. I Enhanced UART with fractional baud rate generator, break detect, framing error detection, automatic address detection and versatile interrupt capabilities (P89LPC913, P89LPC914). I SPI communication port. I Internal RC oscillator (factory calibrated to ±1 %) option allows operation without external oscillator components. The RC oscillator option is selectable and fine tunable. I 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). I Up to 12 I/O pins when using internal oscillator and reset options. 2.2 Additional features I 14-pin TSSOP packages. I A 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 (167 ns to 333 ns at 12 MHz). This is six 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. I In-Application Programming (IAP-Lite) and byte erase allows code memory to be used for non-volatile data storage. P89LPC912/913/914 8-bit microcontrollers with two-clock 80C51 core, 1 kB 3 V flash with 128-byte RAM Rev. 05 — 28 September 2007 Product data sheet |
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