參數(shù)資料
型號: MCP23017T-E/ML
廠商: Microchip Technology
文件頁數(shù): 15/48頁
文件大小: 0K
描述: IC I/O EXPANDER I2C 16B 28QFN
標準包裝: 1,600
接口: I²C
輸入/輸出數(shù): 16
中斷輸出:
頻率 - 時鐘: 1.7MHz
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: 28-VQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 28-QFN(6x6)
包裝: 帶卷 (TR)
配用: MCP23X17EV-ND - BOARD EVAL FOR MCP23X17
GPIODM-KPLCD-ND - BOARD DEMO LCD GPIO EXP KEYPAD
MCP23017/MCP23S17
DS21952B-page 22
2007 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 1-10:
GPIO – GENERAL PURPOSE I/O PORT REGISTER (ADDR 0x09)
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: These bits reflect the logic level on the pins <7:0>
1 = Logic-high.
0 = Logic-low.
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