參數(shù)資料
型號(hào): MCP23018T-E/SS
廠商: Microchip Technology
文件頁數(shù): 21/56頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 16B 24SSOP
標(biāo)準(zhǔn)包裝: 2,100
接口: I²C
輸入/輸出數(shù): 16
中斷輸出:
頻率 - 時(shí)鐘: 3.4MHz
電源電壓: 1.8 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 24-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 24-SSOP
包裝: 帶卷 (TR)
MCP23018/MCP23S18
DS22103A-page 28
2008 Microchip Technology Inc.
1.6.10
PORT REGISTER
The GPIO register reflects the value on the port.
Reading from this register reads the port. Writing to this
register modifies the Output Latch (OLAT) register.
REGISTER 1-12:
GPIO – GENERAL PURPOSE I/O PORT REGISTER
R/W-0
GP7
GP6
GP5
GP4
GP3
GP2
GP1
GP0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-0
GP7:GP0: Reflects the logic level on the pins <7:0>.
1
= Logic-high.
0
= Logic-low.
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