P89LPC933_934_935_936 NXP Semiconductors, P89LPC933_934_935_936 Datasheet - Page 4

• Manufacturer Part Number: P89LPC933_934_935_936
• Description: The P89LPC933/934/935/936 is a single-chip microcontroller, available in low costpackages, based on a high performance processor architecture that executes instructionsin two to four clocks, six times the rate of standard 80C51 devices
• Manufacturer: NXP Semiconductors

NXP Semiconductors
5. Block diagram
P89LPC933_934_935_936
Product data sheet
Fig 1.
Block diagram
RESONATOR
P3[1:0]
P2[7:0]
P1[7:0]
P0[7:0]
CRYSTAL
OR
X1
X2
P89LPC933/934/935/936
OSCILLATOR DIVIDER
CONFIGURABLE I/Os
CONFIGURABLE I/Os
CONFIGURABLE I/Os
CONFIGURABLE I/Os
WATCHDOG TIMER
PROGRAMMABLE
AND OSCILLATOR
(P89LPC935/936)
CONFIGURABLE
AUXILIARY RAM
4 kb/8 kB/16 kB
DATA EEPROM
CODE FLASH
OSCILLATOR
INTERRUPT
DATA RAM
256-BYTE
512-BYTE
512-BYTE
KEYPAD
PORT 3
PORT 2
PORT 1
PORT 0
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 12 January 2011
ACCELERATED 2-CLOCK 80C51 CPU
8-bit microcontroller with accelerated two-clock 80C51 core
internal bus
CPU
clock
OSCILLATOR
ON-CHIP
RC
P89LPC933/934/935/936
(POWER-ON RESET,
BROWNOUT RESET)
REAL-TIME CLOCK/
POWER MONITOR
(P89LPC935/936)
(P89LPC935/936)
CCU (CAPTURE/
COMPARE UNIT)
SYSTEM TIMER
COMPARATORS
ADC1/DAC1
ADC0/DAC0
ANALOG
TIMER 0
TIMER 1
I
2
UART
C-BUS
SPI
002aab070
© NXP B.V. 2011. 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
DAC1
4 of 77