p89lpc9402 NXP Semiconductors, p89lpc9402 Datasheet - Page 5

• Manufacturer Part Number: p89lpc9402
• Description: 8-bit Microcontroller With Accelerated Two-clock 80c51 Core 8 Kb 3 V Byte-erasable ?ash With 32 Segment 4 Lcd Driver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
P89LPC9402_1
Product data sheet
Fig 2.
P2.5, P2[3:0]
Microcontroller section block diagram
RESONATOR
P3[1:0]
P1[7:0]
P0[7:0]
CRYSTAL
OR
XTAL1
XTAL2
P89LPC931A1
OSCILLATOR DIVIDER
CONFIGURABLE I/Os
CONFIGURABLE I/Os
CONFIGURABLE I/Os
CONFIGURABLE I/Os
8 kB CODE FLASH
WATCHDOG TIMER
PROGRAMMABLE
AND OSCILLATOR
CONFIGURABLE
OSCILLATOR
INTERRUPT
DATA RAM
256-BYTE
KEYPAD
PORT 3
PORT 2
PORT 1
PORT 0
Rev. 01 — 22 April 2009
ACCELERATED 2-CLOCK 80C51 CPU
8-bit microcontroller with accelerated two-clock 80C51 core
internal bus
CPU
clock
WITH CLOCK DOUBLER
OSCILLATOR
ON-CHIP RC
REAL-TIME CLOCK/
(POWER-ON RESET,
BROWNOUT RESET)
SYSTEM TIMER
COMPARATORS
POWER MONITOR
ANALOG
I
TIMER 0
TIMER 1
2
UART
C-BUS
SPI
P89LPC9402
002aae471
© NXP B.V. 2009. All rights reserved.
TXD
RXD
SCL
SDA
SPICLK
MOSI
MISO
T0
T1
CMP2
CIN2B
CIN2A
CMP1
CIN1A
CIN1B
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