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P89LPC9251 Datasheet(PDF) 1 Page - NXP Semiconductors |
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P89LPC9251 Datasheet(HTML) 1 Page - NXP Semiconductors |
1 / 74 page 1. General description The P89LPC9201/9211/922A1/9241/9251 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 device in order to reduce component count, board space, and system cost. 2. Features 2.1 Principal features I 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. I 256-byte RAM data memory. I 4-input multiplexed 8-bit ADC/single DAC output (P89LPC9241/9251). Two analog comparators with selectable inputs and reference source. I On-chip temperature sensor integrated with ADC module (P89LPC9241/9251). I Two 16-bit counter/timers (each may be configured to toggle a port output upon timer overflow or to become a PWM output). I 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. I 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. 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 Enhanced low voltage (brownout) detect allows a graceful system shutdown when power fails. I 20-pin TSSOP and DIP packages with 15 I/O pins minimum and up to 18 I/O pins while using on-chip oscillator and reset options. P89LPC9201/9211/922A1/9241/ 9251 8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB 3 V byte-erasable flash with 8-bit ADC Rev. 01 — 16 April 2009 Preliminary data sheet |
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