p89lpc9321fdh NXP Semiconductors, p89lpc9321fdh Datasheet - Page 4
p89lpc9321fdh
Manufacturer Part Number
p89lpc9321fdh
Description
8-bit Microcontroller With Accelerated Two-clock 80c51 Core 8 Kb 3 V Byte-erasable ?ash With 512-byte Data Eeprom
Manufacturer
NXP Semiconductors
Datasheet
1.P89LPC9321FDH.pdf
(70 pages)
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NXP Semiconductors
4. Block diagram
P89LPC9321_1
Product data sheet
Fig 1.
Block diagram
RESONATOR XTAL2
CRYSTAL
P3[1:0]
P2[7:0]
P1[7:0]
P0[7:0]
OR
XTAL1
P89LPC9321
OSCILLATOR DIVIDER
CONFIGURABLE I/Os
CONFIGURABLE I/Os
CONFIGURABLE I/Os
CONFIGURABLE I/Os
WATCHDOG TIMER
PROGRAMMABLE
AND OSCILLATOR
CONFIGURABLE
AUXILIARY RAM
DATA EEPROM
CODE FLASH
OSCILLATOR
INTERRUPT
DATA RAM
256-BYTE
512-BYTE
512-BYTE
KEYPAD
PORT 3
PORT 2
PORT 1
PORT 0
8 kB
Rev. 01 — 9 December 2008
ACCELERATED 2-CLOCK 80C51 CPU
8-bit microcontroller with accelerated two-clock 80C51 core
internal bus
CPU
clock
OSCILLATOR
WITH CLOCK
ON-CHIP RC
DOUBLER
(POWER-ON RESET,
BROWNOUT RESET)
REAL-TIME CLOCK/
POWER MONITOR
COMPARE UNIT)
CCU (CAPTURE/
SYSTEM TIMER
COMPARATORS
ANALOG
I
TIMER 0
TIMER 1
2
(PGA1)
UART
C-BUS
SPI
P89LPC9321
002aae102
© NXP B.V. 2008. All rights reserved.
TXD
RXD
SCL
SDA
SPICLK
MOSI
MISO
SS
T0
T1
CMP2
CIN2B
CIN2A
CMP1
CIN1A
CIN1B
OCA
OCB
OCC
OCD
ICA
ICB
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