P89LPC904 데이터 시트보기 (PDF) - Philips Electronics

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P89LPC904

8-bit microcontrollers with two-clock accelerated 80C51 core 1 kB 3 V byte-erasable Flash with 8-bit A/D converter

Philips Electronics 

Philips Semiconductors

4. Block diagram

P89LPC904

8-bit microcontrollers with two-clock accelerated 80C51 core

P89LPC904

HIGH PERFORMANCE

ACCELERATED 2-CLOCK 80C51 CPU

1 kB

CODE FLASH

128-BYTE

DATA RAM

PORT 1

INPUT

INTERNAL

BUS

PORT 0

CONFIGURABLE I/Os

KEYPAD

INTERRUPT

WATCHDOG TIMER

AND OSCILLATOR

external

clock

input

PROGRAMMABLE

OSCILLATOR DIVIDER

CPU

CLOCK

ON-CHIP

RC

OSCILLATOR

Fig 1. P89LPC904 block diagram.

UART

TIMER 0

TIMER 1

REAL-TIME CLOCK/

SYSTEM TIMER

ANALOG

COMPARATORS

ADC1/DAC1

POWER MONITOR

(POWER-ON RESET,

BROWNOUT RESET)

002aaa779

9397 750 13521

Preliminary data

Rev. 02 — 25 June 2004

© Koninklijke Philips Electronics N.V. 2004. All rights reserved.

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