P89LPC922FN NXP Semiconductors, P89LPC922FN Datasheet - Page 4

• Manufacturer Part Number: P89LPC922FN
• Description: IC, MCU 8BIT 80C51 8K FLASH, DIP20
• Manufacturer: NXP Semiconductors

Specifications of P89LPC922FN

• Controller Family/series: (8051) 8052
• Core Size: 8bit
• No. Of I/o's: 18
• Program Memory Size: 8KB
• Ram Memory Size: 256Byte
• Cpu Speed: 18MHz
• Oscillator Type: External, Internal
• No. Of Timers: 4
• No. Of: RoHS Compliant

Philips Semiconductors
4. Block diagram
9397 750 14469
Product data
Fig 1. Block diagram.
RESONATOR
CRYSTAL
OR
P89LPC920/921/922/9221
OSCILLATOR DIVIDER
CONFIGURABLE I/Os
CONFIGURABLE I/Os
CONFIGURABLE I/Os
PROGRAMMABLE
CONFIGURABLE
2 kB/4 kB/8 kB
CODE FLASH
OSCILLATOR
INTERRUPT
DATA RAM
256-BYTE
KEYPAD
PORT 3
PORT 1
PORT 0
Rev. 08 — 15 December 2004
CPU
clock
ACCELERATED 2-CLOCK 80C51 CPU
internal bus
OSCILLATOR
ON-CHIP
RC
HIGH PERFORMANCE
P89LPC920/921/922/9221
8-bit microcontrollers with two-clock 80C51 core
(POWER-ON RESET,
BROWNOUT RESET)
POWER MONITOR
REAL-TIME CLOCK/
WATCHDOG TIMER
AND OSCILLATOR
SYSTEM TIMER
COMPARATORS
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
ANALOG
TIMER 0
TIMER 1
UART
I
2
C
002aaa410
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