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NCA9555B PDF预览

NCA9555B

更新时间: 2024-10-29 17:00:47
品牌 Logo 应用领域
纳芯微 - NOVOSENSE 开关电源开关风扇传感器
页数 文件大小 规格书
28页 1246K
描述
NCA9555B是一款24引脚CMOS器件,提供16位通用并行I2C总线数输入/输出GPIO扩展功能。它和ACPI电源开关,传感器,按键,LED和风扇等应用的额外I/O口需求提供了简单的解决方案。

NCA9555B 数据手册

 浏览型号NCA9555B的Datasheet PDF文件第1页浏览型号NCA9555B的Datasheet PDF文件第3页浏览型号NCA9555B的Datasheet PDF文件第4页浏览型号NCA9555B的Datasheet PDF文件第5页浏览型号NCA9555B的Datasheet PDF文件第6页浏览型号NCA9555B的Datasheet PDF文件第7页 
NCA9555B  
INDEX  
Datasheet (EN) 1.1  
1. PIN CONFIGURATION AND FUNCTIONS.............................................................................................................................3  
2. ABSOLUTE MAXIMUM RATINGS .........................................................................................................................................4  
3. ESD RATINGS (ELECTROSTATIC DISCHARGE PROTECTION) .............................................................................................4  
4. RECOMMENDED OPERATING CONDITIONS .......................................................................................................................5  
5. THERMAL CHARACTERISTICS ............................................................................................................................................5  
6. SPECIFICATIONS ................................................................................................................................................................6  
6.1. ELECTRICAL CHARACTERISTICS .......................................................................................................................................6  
6.2. DYNAMIC CHARACTERISTICS...........................................................................................................................................8  
6.3. PARAMETER MEASUREMENT INFORMATION.......................................................................................................................9  
7. DETAILED DESCRIPTION..................................................................................................................................................10  
7.1. FUNCTIONAL BLOCK DIAGRAM......................................................................................................................................10  
7.2. FEATURE DESCRIPTION................................................................................................................................................11  
7.2.1.  
7.2.2.  
I/O port.................................................................................................................................................................... 11  
Interrupt (INT\ ) Output........................................................................................................................................... 11  
7.3. DEVICE FUNCTIONAL MODES.........................................................................................................................................12  
7.3.1. Power-On Reset.......................................................................................................................................................12  
7.4. PROGRAMMING..........................................................................................................................................................12  
7.4.1.  
7.4.2.  
7.4.3.  
7.4.4.  
7.4.5.  
I2C Interface............................................................................................................................................................12  
Start and Stop Conditions.......................................................................................................................................12  
Bit Transfer..............................................................................................................................................................13  
System Configuration .............................................................................................................................................13  
Acknowledge ..........................................................................................................................................................14  
7.5. REGISTER MAPS.........................................................................................................................................................14  
7.5.1.  
7.5.2.  
7.5.3.  
7.5.4.  
7.5.5.  
7.5.6.  
Device Address ........................................................................................................................................................14  
Control Register and Command Byte .....................................................................................................................15  
Registers 0 and 1: Input port register pair ..............................................................................................................16  
Registers 2 and 3: Output port registers .................................................................................................................16  
Registers 4 and 5: Polarity inversion registers ........................................................................................................16  
Registers 6 and 7: Configuration registers ..............................................................................................................17  
7.6. BUS TRANSACTIONS ...................................................................................................................................................17  
7.6.1.  
Writing to the Port Registers ...................................................................................................................................17  
7.6.2.  
Reading the Port Registers .....................................................................................................................................18  
8. APPLICATION DESIGN-IN INFORMATION.........................................................................................................................20  
8.1. APPLICATION INFORMATION .........................................................................................................................................20  
8.2. TYPICAL APPLICATION.................................................................................................................................................20  
9. ORDER INFORMATION .....................................................................................................................................................21  
10. DOCUMENTATION SUPPORT .........................................................................................................................................21  
11. PACKAGE INFORMATION................................................................................................................................................22  
12. TAPE AND REEL INFORMATION......................................................................................................................................26  
13. REVISION HISTORY ........................................................................................................................................................27  
Copyright © 2023, NOVOSENSE  
Page 2  

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