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W83C42 PDF预览

W83C42

更新时间: 2024-10-01 03:17:31
品牌 Logo 应用领域
华邦 - WINBOND 微控制器和处理器外围集成电路uCs集成电路uPs集成电路光电二极管
页数 文件大小 规格书
15页 91K
描述
KEYBOARD CONTROLLER

W83C42 技术参数

生命周期:Obsolete零件包装代码:DIP
包装说明:DIP, DIP40,.6针数:40
Reach Compliance Code:unknown风险等级:5.81
Is Samacsys:NJESD-30 代码:R-PDIP-T40
JESD-609代码:e3长度:52.2 mm
端子数量:40最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP40,.6
封装形状:RECTANGULAR封装形式:IN-LINE
电源:5 V认证状态:Not Qualified
座面最大高度:5.33 mm子类别:Other Microprocessor ICs
最大供电电压:5.25 V最小供电电压:4.75 V
标称供电电压:5 V表面贴装:NO
技术:CMOS温度等级:COMMERCIAL
端子面层:MATTE TIN端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
宽度:15.24 mmuPs/uCs/外围集成电路类型:MICROPROCESSOR CIRCUIT
Base Number Matches:1

W83C42 数据手册

 浏览型号W83C42的Datasheet PDF文件第2页浏览型号W83C42的Datasheet PDF文件第3页浏览型号W83C42的Datasheet PDF文件第4页浏览型号W83C42的Datasheet PDF文件第5页浏览型号W83C42的Datasheet PDF文件第6页浏览型号W83C42的Datasheet PDF文件第7页 
W83C42  
KEYBOARD CONTROLLER  
GENERAL DESCRIPTION  
The W83C42 keyboard controller is programmed to support the IBMâ compatible personal computer  
keyboard serial interface. The keyboard controller receives serial data from the keyboard, checks the  
parity of the data, translates the scan code, and presents the data to the system as a byte of data in  
its output buffer. The controller will interrupt the system when data is placed in its output buffer. The  
byte of data will be sent to the keyboard serially with an odd parity bit automatically inserted. The  
keyboard is required to acknowledge all data transmissions. No transmission should be sent to the  
keyboard until acknowledge is received for the previous byte sent.  
Winbond Electronics Corporation has developed a fast keyboard controller and BIOS to improve the  
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performance of IBM PC/AT 386 DX/SX and 486 DX/SX machines and their compatibles. Hardwire  
methodology is used in this keyboard controller instead of software implementation, as in the  
traditional 8042 keyboard BIOS. This enables the keyboard controller to respond instantly to all  
commands sent from the keyboard to the CPU BIOS.  
The keyboard controller enables popular programs such as AutoCADâ , Microsoftâ Windows 3.1,  
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NOVELLâ , and other programs to run much faster.  
FEATURES  
· Supports IBM PC/AT 386DX/SX and 486 DX/SX system designs  
· Runs much faster than traditional keyboard controllers  
· Host interface compatible with traditional keyboard controller  
· 6MHz~12MHz operating frequency  
· Communicates with keyboard directly  
· High-reliability CMOS technology  
· Available packages: 40-pin DIP, 44-pin PLCC  
IBM and PC/AT are registered trademarks of International Business Machines Corporation. 386 and 486 are trademarks of Intel  
Corporation. AutoCAD is a registered trademark of Autodesk, Inc. Microsoft is a registered trademark and Windows is a trademark of  
Microsoft Corporation. NOVELL is a registered trademark of Novell, Inc.  
Publication Release Date: July 1994  
- 1 -  
Revision A3  

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