參數(shù)資料
型號: P89LPC902FN,129
廠商: NXP Semiconductors
文件頁數(shù): 24/53頁
文件大?。?/td> 0K
描述: IC 80C51 MCU FLASH 1K 8-DIP
產(chǎn)品培訓模塊: Migrating from 8/16-Bit MCUs to 32-Bit ARMs
標準包裝: 250
系列: LPC900
核心處理器: 8051
芯體尺寸: 8-位
速度: 7.3728MHz
外圍設(shè)備: 欠壓檢測/復位,LED,POR,WDT
輸入/輸出數(shù): 6
程序存儲器容量: 1KB(1K x 8)
程序存儲器類型: 閃存
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 2.4 V ~ 3.6 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 8-DIP(0.300",7.62mm)
包裝: 管件
配用: 622-1006-ND - SOCKET ADAPTER BOARD
568-4000-ND - DEMO BOARD SPI/I2C TO DUAL UART
568-3510-ND - DEMO BOARD SPI/I2C TO UART
568-1759-ND - EMULATOR DEBUGGER/PROGRMMR LPC9X
其它名稱: 568-2246-5
935273899129
P89LPC902FN-S
Philips Semiconductors
P89LPC901/902/903
8-bit microcontrollers with two-clock 80C51 core
Product data
Rev. 05 — 17 December 2004
30 of 53
9397 750 14465
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
8.12 I/O ports
The P89LPC901 has between 3 and 6 I/O pins: P0.4, P0.5, P1.2, P1.5, P3.0, and
P3.1 The exact number of I/O pins available depends on the clock and reset options
chosen, as shown in Table 11.
[1]
Required for operation above 12 MHz.
The P89LPC902 and P89LPC903 devices have either 5 or 6 I/O pins depending on
the reset pin option chosen.
8.12.1
Port congurations
All but one I/O port pin on the P89LPC901/902/903 may be congured by software to
one of four types on a bit-by-bit basis. These are: quasi-bidirectional (standard 80C51
port outputs), push-pull, open drain, and input-only. Two conguration registers for
each port select the output type for each port pin.
P1.5 (RST) can only be an input and cannot be congured.
Fig 17. Interrupt sources, interrupt enables, and power-down wake-up sources (P89LPC903).
002aaa452
BOF
EBO
KBIF
EKBI
INTERRUPT
TO CPU
WAKE-UP
(IF IN POWER-DOWN)
EWDRT
CMF
EC
EA (IE0.7)
RTCF
ERTC
(RTCCON.1)
WDOVF
TF1
ET1
TI & RI/RI
ES/ESR
TI
EST
TF0
ET0
Table 11:
Number of I/O pins available
Clock source
Reset option
Number of I/O pins
(8-pin package)
On-chip oscillator or Watchdog oscillator
No external reset (except during power-up)
6
External RST pin supported
5
External clock input
No external reset (except during power-up)
5
External RST pin supported[1]
4
Low/medium/high speed oscillator
(external crystal or resonator)
No external reset (except during power-up)
4
External RST pin supported[1]
3
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