p89lpc9351 NXP Semiconductors, p89lpc9351 Datasheet - Page 4

• Manufacturer Part Number: p89lpc9351
• Description: 8-bit Microcontroller With Accelerated Two-clock 80c51 Core 8 Kb 3 V Byte-erasable ?ash With 8-bit Adc
• Manufacturer: NXP Semiconductors

NXP Semiconductors
4. Block diagram
P89LPC9351_1
Preliminary data sheet
Fig 1.
Block diagram
RESONATOR XTAL2
CRYSTAL
P3[1:0]
P2[7:0]
P1[7:0]
P0[7:0]
OR
XTAL1
P89LPC9351
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 — 19 November 2008
ACCELERATED 2-CLOCK 80C51 CPU
internal bus
CPU
clock
OSCILLATOR
WITH CLOCK
ON-CHIP RC
DOUBLER
(POWER-ON RESET,
BROWNOUT RESET)
REAL-TIME CLOCK/
8-bit microcontroller with 8-bit ADC
POWER MONITOR
COMPARE UNIT)
CCU (CAPTURE/
SYSTEM TIMER
COMPARATORS
DAC0 (PGA0)
ADC0/TEMP
ADC1/DAC1
SENSOR/
ANALOG
I
TIMER 0
TIMER 1
2
(PGA1)
UART
C-BUS
SPI
P89LPC9351
002aad555
© 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
AD10
AD11
AD12
AD13
DAC1
AD00
AD01
AD02
AD03
DAC0
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