p89lpc9401 NXP Semiconductors, p89lpc9401 Datasheet - Page 18

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p89lpc9401

Manufacturer Part Number
p89lpc9401
Description
8-bit Microcontroller With Accelerated Two-clock 80c51 Core 8 Kb 3 V Byte-erasable Flash With 32 Segment X 4 Lcd Driver
Manufacturer
NXP Semiconductors
Datasheet

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Philips Semiconductors
P89LPC9401_1
Preliminary data sheet
Fig 6. Block diagram of oscillator control - P89LPC931
XTAL1
XTAL2
(400 kHz 30 % 20 %)
(7.3728 MHz
OSCILLATOR
OSCILLATOR
WATCHDOG
RC
MEDIUM FREQUENCY
8-bit two-clock 80C51 microcontroller with 32 segment
HIGH FREQUENCY
LOW FREQUENCY
1 %)
Rev. 01 — 5 September 2005
RCCLK
TIMER 0 AND
OSCCLK
TIMER 1
DIVM
I
2
PCLK
C-BUS
CCLK
PCLK
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
2
P89LPC9401
SPI
WDT
RTC
CPU
4 LCD driver
UART
002aab463
18 of 59

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