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P89LPC904 Datasheet 8-bit microcontrollers

Manufacturer: NXP Semiconductors

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General Description

The P89LPC904 is a single-chip microcontroller in a low-cost 8-pin package 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 P89LPC904 in order to reduce component count, board space, and system cost.

2.

Overview

www.DataSheet4U.com P89LPC904 8-bit microcontrollers with two-clock accelerated 80C51 core 1 kB 3 V byte-erasable Flash with 8-bit A/D converter Rev.

02 — 25 June 2004 Preliminary data 1.

Key Features

  • 2.1 Principal features s 1 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. s 128-byte RAM data memory. s Two 16-bit counter/timers. s 23-bit system timer that can also be used as a Real-Time clock. s 2 -input multiplexed A/D converter/single DAC output. Two analog comparators with selectable reference. s Enhanced UART with fractional baud rate generator, break detect, framing err.

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