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MCP23018 参数 Datasheet PDF下载

MCP23018图片预览
型号: MCP23018
PDF下载: 下载PDF文件 查看货源
内容描述: 16位I / O扩展漏极开路输出 [16-Bit I/O Expander with Open-Drain Outputs]
分类和应用:
文件页数/大小: 56 页 / 736 K
品牌: MICROCHIP [ MICROCHIP ]
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MCP23018/MCP23S18  
1.6.11  
OUTPUT LATCH REGISTER (OLAT)  
The OLAT register provides access to the output  
latches. A read from this register results in a read of the  
OLAT and not the port itself. A write to this register  
modifies the output latches that modifies the pins  
configured as outputs.  
REGISTER 1-13: OLAT – OUTPUT LATCH REGISTER 0  
R/W-0  
OL7  
R/W-0  
OL6  
R/W-0  
OL5  
R/W-0  
OL4  
R/W-0  
OL3  
R/W-0  
OL2  
R/W-0  
OL1  
R/W-0  
OL0  
bit 7  
bit 0  
Legend:  
R = Readable bit  
-n = Value at POR  
W = Writable bit  
‘1’ = Bit is set  
U = Unimplemented bit, read as ‘0’  
‘0’ = Bit is cleared x = Bit is unknown  
bit 7-0  
OL7:OL0: Reflects the logic level on the output latch <7:0>.  
1= Logic-high.  
0= Logic-low.  
© 2008 Microchip Technology Inc.  
DS22103A-page 29  
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