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W78C438C_14

更新时间： 2024-09-16 02:51:19
品牌 Logo 应用领域
新唐 - NUVOTON /
页数 文件大小 规格书
20页 363K
描述
8-BIT MICROCONTROLLER

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中文翻译

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W78C438C_14 数据手册

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W78C438C Data Sheet  
8-BIT MICROCONTROLLER  
Table of Contents-  
1.  
2.  
3.  
4.  
5.  
GENERAL DESCRIPTION.......................................................................................................... 2  
FEATURES ................................................................................................................................. 2  
PIN CONFIGURATIONS............................................................................................................. 3  
PIN DESCRIPTION..................................................................................................................... 4  
FUNCTIONAL DESCRIPTION.................................................................................................... 6  
5.1  
5.2  
5.3  
5.4  
5.5  
5.6  
Dedicated Data and Address Port .................................................................................. 6  
Additional I/O Port........................................................................................................... 8  
Additional External Interrupt............................................................................................ 8  
Newly Added Special Function Registers ..................................................................... 10  
Power Reduction Function............................................................................................ 10  
Programming Difference............................................................................................... 11  
6.  
ELECRICAL CHARACTERISTICS ........................................................................................... 12  
6.1  
6.2  
6.3  
Absolute Maximum Ratings .......................................................................................... 12  
D.C. Characteristics...................................................................................................... 12  
A.C. Characteristics ...................................................................................................... 13  
6.3.1 Clock Input Waveform....................................................................................................13  
6.3.2 Program Fetch Cycle......................................................................................................13  
6.3.3 Data Memory Read/Write Cycle.....................................................................................14  
7.  
TIMING WAVEFORMS............................................................................................................. 15  
7.1  
7.2  
Program Fetch Cycle .................................................................................................... 15  
Data Memory Read/Write Cycle ................................................................................... 16  
8.  
TYPICAL APPLICATION CIRCUITS......................................................................................... 17  
8.1 Using 128K × 8 bit External EPROM (W27E010)......................................................... 17  
PACKAGE DIMENSIONS ......................................................................................................... 19  
9.1 100-pin QFP.................................................................................................................. 19  
9.  
10.  
REVISION HISTORY ................................................................................................................ 20  
Publication Release Date: March 10, 2010  
- 1 -  
Revision A7  
1234567...20

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