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P89LPC931A1 Datasheet(PDF) 4 Page - NXP Semiconductors |
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P89LPC931A1 Datasheet(HTML) 4 Page - NXP Semiconductors |
4 / 65 page P89LPC9301_931A1_1 © NXP B.V. 2009. All rights reserved. Preliminary data sheet Rev. 01 — 9 April 2009 4 of 65 NXP Semiconductors P89LPC9301/931A1 8-bit microcontroller with accelerated two-clock 80C51 core 4. Block diagram Fig 1. Block diagram HIGH PERFORMANCE ACCELERATED 2-CLOCK 80C51 CPU 4 kB/8 kB CODE FLASH 256-BYTE DATA RAM PORT 2 CONFIGURABLE I/Os PORT 0 CONFIGURABLE I/Os KEYPAD INTERRUPT PROGRAMMABLE OSCILLATOR DIVIDER CPU clock CONFIGURABLE OSCILLATOR ON-CHIP RC OSCILLATOR WITH CLOCK DOUBLER internal bus CRYSTAL OR RESONATOR POWER MONITOR (POWER-ON RESET, BROWNOUT RESET) 002aae447 ANALOG COMPARATORS I2C-BUS PORT 3 CONFIGURABLE I/Os P89LPC9301/931A1 TIMER 0 TIMER 1 WATCHDOG TIMER AND OSCILLATOR P3[1:0] P2[7:0] PORT 1 CONFIGURABLE I/Os P1[7:0] P0[7:0] XTAL2 XTAL1 SCL SDA TXD RXD UART REAL-TIME CLOCK/ SYSTEM TIMER T0 T1 CMP2 CIN2B CIN2A CMP1 CIN1A CIN1B SPI SPICLK MOSI MISO SS |
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