參數(shù)資料
型號: MCP23016-I/ML
廠商: Microchip Technology
文件頁數(shù): 35/38頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 16B 28QFN
標(biāo)準(zhǔn)包裝: 61
接口: I²C
輸入/輸出數(shù): 16
中斷輸出:
頻率 - 時(shí)鐘: 400kHz
電源電壓: 2 V ~ 5.5 V
工作溫度: -40°C ~ 85°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: 管件
包括: POR
產(chǎn)品目錄頁面: 684 (CN2011-ZH PDF)
MCP23016
DS20090C-page 6
2007 Microchip Technology Inc.
1.7.1
DATA PORT REGISTERS
Two registers provide access to the two GPIO ports:
GP0 (provides access to data port GP0)
GP1 (provides access to data port GP1)
A read from this register provides status on pins of
these ports. A write to these registers will modify the
output latch registers (OLAT0, OLAT1) and data output.
REGISTER 1-1:
GP0 - GENERAL PURPOSE I/O PORT REGISTER 0
REGISTER 1-2:
GP1 - GENERAL PURPOSE I/O PORT REGISTER 1
R/W-0
GP0.7GP0.6
GP0.5GP0.4
GP0.3GP0.2
GP0.1GP0.0
bit 7
bit 0
bit 7-0
GP0.0:GP0.7: Reflects the logic level on the pins.
1
= Logic ‘1’
0
= Logic ‘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
R/W-0
GP1.7GP1.6
GP1.5GP1.4
GP1.3GP1.2
GP1.1GP1.0
bit 7
bit 0
bit 7-0
GP1.0:GP1.7: Reflects the logic level on the pins.
1
= Logic ‘1’
0
= Logic ‘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
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