参数资料
型号: P89LPC901FD,112
厂商: NXP Semiconductors
文件页数: 24/53页
文件大小: 0K
描述: IC 80C51 MCU FLASH 1K 8-SOIC
产品培训模块: Migrating from 8/16-Bit MCUs to 32-Bit ARMs
标准包装: 1
系列: LPC900
核心处理器: 8051
芯体尺寸: 8-位
速度: 18MHz
外围设备: 欠压检测/复位,LED,POR,PWM,WDT
输入/输出数: 6
程序存储器容量: 1KB(1K x 8)
程序存储器类型: 闪存
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 2.4 V ~ 3.6 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 剪切带 (CT)
配用: 622-1009-ND - BOARD FOR LPC901 8-DIP
622-1008-ND - BOARD FOR LPC9103 10-HVSON
622-1006-ND - SOCKET ADAPTER BOARD
622-1002-ND - USB IN-CIRCUIT PROG LPC9XX
568-1759-ND - EMULATOR DEBUGGER/PROGRMMR LPC9X
其它名称: 568-1994-1
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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