P89LPC922FDH NXP Semiconductors, P89LPC922FDH Datasheet - Page 4

• Manufacturer Part Number: P89LPC922FDH
• Description: MCU 8-Bit 89LP 80C51 CISC 8KB Flash 2.5V/3.3V 20-Pin TSSOP Tube
• Manufacturer: NXP Semiconductors

Specifications of P89LPC922FDH

• Package: 20TSSOP
• Device Core: 80C51
• Family Name: 89LP
• Maximum Speed: 18 MHz
• Ram Size: 256 Byte
• Program Memory Size: 8 KB
• Operating Supply Voltage: 2.5|3.3 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 18
• Interface Type: I2C/UART
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 2

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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