p89lpc9401 NXP Semiconductors, p89lpc9401 Datasheet - Page 5

• 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

Philips Semiconductors
P89LPC9401_1
Preliminary data sheet
Fig 2. Microcontroller section block diagram
P2.5, P2[3:0]
RESONATOR
P3[1:0]
P1[7:0]
P0[7:0]
CRYSTAL
OR
X1
X2
P89LPC931
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
8-bit two-clock 80C51 microcontroller with 32 segment
Rev. 01 — 5 September 2005
ACCELERATED 2-CLOCK 80C51 CPU
internal bus
CPU
clock
OSCILLATOR
ON-CHIP
RC
(POWER-ON RESET,
BROWNOUT RESET)
POWER MONITOR
REAL-TIME CLOCK/
SYSTEM TIMER
COMPARATORS
ANALOG
I
TIMER 0
TIMER 1
2
UART
C-BUS
SPI
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
P89LPC9401
002aab461
TXD
RXD
SCL
SDA
SPICLK
MOSI
MISO
T0
T1
CMP2
CIN2B
CIN2A
CMP1
CIN1A
CIN1B
4 LCD driver
5 of 59