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74HC541 8路缓冲器/线路驱动器具备74HC240所有的功能，并且把输入引脚和输出引脚分布在封装的两边，这就极大方便了印刷电路板的布线。
1.74hc541中文资料
74HC541 8路缓冲器/线路驱动器具备74HC240所有的功能，并且把输入引脚和输出引脚分布在封装的两边，这就极大方便了印刷电路板的布线。
74HC541的三态输出由一个两输入或非门控制。
当任一个输出使能端（OE1或OE2）为高时，八个输出端将进入高阻态。
74HC541器件的输出为原码数据。
该7HC/HCT54是八进制非反相缓冲器/线路，具有三态输出的驱动器。
三态输出是由输出使能输入OE1和OE2控制。
OEN高导致输出呈现高电平。
阻抗呈关闭状态，“541”与“540”相同，但具有非反相输出。
2.74hc541引脚图及功能
SN74HC541能够完成两侧输入的封装和输引脚的排列与输出的功能，通俗的说，就是可以完成三态输出的八线路缓冲器和线路驱动器。
SN54HC541引脚配置和功能
OE1 ：输出使能（低电平有效）两个OE必须为低电平才能使能输出
A1：通道1输入，A2 ：通道2输入，A3：通道3输入，A4：通道4输入，A5：通道5输入，A6：通道6输入，A7：通道7输入，A8：通道8输入。
GND：【地】
Y8 ：通道8输出，Y7 ：通道7输出，Y6 ：通道6输出，Y5 ：通道5输出，Y4 ：通道4输出，Y3 ：通道3输出，Y2 ：通道2输出，Y1 ：通道1输出。
OE2 ：输出使能（低电平有效）OE必须为低电平才能使能输出。
VCC ：电源引脚。
元器件交易网SO20:plastic small outline package; 20 leads; body width 7.5 mm SOT163-1SSOP20:plastic shrink small outline package; 20 leads; body width 5.3 mm SOT339-1TSSOP20:plastic thin shrink small outline package; 20 leads; body width 4.4 mm SOT360-1DefinitionsShort-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook.Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability.Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification.DisclaimersLife support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified.Philips Semiconductors811 East Arques AvenueP.O. Box 3409Sunnyvale, California 94088–3409Telephone 800-234-7381© Copyright Philips Electronics North America Corporation 1998All rights reserved. Printed in U.S.A.print code Date of release: 08-98。
