P89LPC932A1 NXP Semiconductors, P89LPC932A1 Datasheet - Page 4

• Manufacturer Part Number: P89LPC932A1
• Description: The P89LPC932A1 is a single-chip microcontroller, available in low cost packages, basedon a high performance processor architecture that executes instructions in two to fourclocks, six times the rate of standard 80C51 devices
• Manufacturer: NXP Semiconductors

NXP Semiconductors
4. Block diagram
P89LPC932A1_3
Product data sheet
Fig 1. Block diagram
RESONATOR
CRYSTAL
OR
P3[1:0]
P2[7:0]
P1[7:0]
P0[7:0]
XTAL1
XTAL2
P89LPC932A1
OSCILLATOR DIVIDER
CONFIGURABLE I/Os
CONFIGURABLE I/Os
CONFIGURABLE I/Os
CONFIGURABLE I/Os
WATCHDOG TIMER
AND OSCILLATOR
PROGRAMMABLE
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. 03 — 12 March 2007
ACCELERATED 2-CLOCK 80C51 CPU
8-bit microcontroller with accelerated two-clock 80C51 core
internal
CPU
clock
OSCILLATOR
bus
ON-CHIP
RC
(POWER-ON RESET,
BROWNOUT RESET)
REAL-TIME CLOCK/
POWER MONITOR
COMPARE UNIT)
CCU (CAPTURE/
SYSTEM TIMER
COMPARATORS
ANALOG
TIMER 0
TIMER 1
I
2
UART
C-BUS
SPI
P89LPC932A1
002aaa885
© NXP B.V. 2007. All rights reserved.
TXD
RXD
SCL
SDA
SPICLK
MISO
MOSI
SS
T0
T1
CMP2
CIN2A
CIN2B
CMP1
CIN1A
CIN1B
OCA
OCB
OCC
OCD
ICA
ICB
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