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P89LPC9321 データシートの表示(PDF) - NXP Semiconductors.
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P89LPC9321
8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable flash with 512-byte data EEPROM
NXP Semiconductors.
P89LPC9321 Datasheet PDF : 70 Pages
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NXP Semiconductors
4. Block diagram
P89LPC9321
8-bit microcontroller with accelerated two-clock 80C51 core
P89LPC9321
ACCELERATED 2-CLOCK 80C51 CPU
P3[1:0]
P2[7:0]
P1[7:0]
P0[7:0]
CRYSTAL
OR
RESONATOR
XTAL1
XTAL2
8 kB
CODE FLASH
256-BYTE
DATA RAM
512-BYTE
AUXILIARY RAM
internal bus
512-BYTE
DATA EEPROM
PORT 3
CONFIGURABLE I/Os
PORT 2
CONFIGURABLE I/Os
PORT 1
CONFIGURABLE I/Os
PORT 0
CONFIGURABLE I/Os
KEYPAD
INTERRUPT
WATCHDOG TIMER
AND OSCILLATOR
PROGRAMMABLE
OSCILLATOR DIVIDER
CPU
clock
CONFIGURABLE
OSCILLATOR
ON-CHIP RC
OSCILLATOR
WITH CLOCK
DOUBLER
Fig 1. Block diagram
UART
I
2
C-BUS
SPI
REAL-TIME CLOCK/
SYSTEM TIMER
TIMER 0
TIMER 1
ANALOG
COMPARATORS
(PGA1)
CCU (CAPTURE/
COMPARE UNIT)
TXD
RXD
SCL
SDA
SPICLK
MOSI
MISO
SS
T0
T1
CMP2
CIN2B
CIN2A
CMP1
CIN1A
CIN1B
OCA
OCB
OCC
OCD
ICA
ICB
POWER MONITOR
(POWER-ON RESET,
BROWNOUT RESET)
002aae102
P89LPC9321_1
Product data sheet
Rev. 01 — 9 December 2008
© NXP B.V. 2008. All rights reserved.
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