P89LPC924_925 NXP Semiconductors, P89LPC924_925 Datasheet - Page 4

• Manufacturer Part Number: P89LPC924_925
• Description: The P89LPC924/925 are single-chip microcontrollers designed for applicationsdemanding high-integration, low cost solutions over a wide range of performancerequirements
• Manufacturer: NXP Semiconductors

Philips Semiconductors
4. Block diagram
9397 750 14471
Product data
Fig 1. Block diagram.
RESONATOR
CRYSTAL
OR
P89LPC924/925
OSCILLATOR DIVIDER
CONFIGURABLE I/Os
CONFIGURABLE I/Os
CONFIGURABLE I/Os
PROGRAMMABLE
CONFIGURABLE
2 kB/4 kB/8 kB
CODE FLASH
OSCILLATOR
INTERRUPT
DATA RAM
256-BYTE
KEYPAD
PORT 3
PORT 1
PORT 0
Rev. 03 — 15 December 2004
8-bit microcontrollers with accelerated two-clock 80C51 core
ACCELERATED 2-CLOCK 80C51 CPU
INTERNAL BUS
CPU
CLOCK
OSCILLATOR
ON-CHIP
HIGH PERFORMANCE
RC
(POWER-ON RESET,
BROWNOUT RESET)
POWER MONITOR
REAL-TIME CLOCK/
WATCHDOG TIMER
AND OSCILLATOR
P89LPC924/925
SYSTEM TIMER
COMPARATORS
ADC1/DAC1
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
ANALOG
TIMER 0
TIMER 1
UART
I
2
C
002aaa786
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