參數(shù)資料
型號(hào): MCP23016-I/SP
廠商: Microchip Technology
文件頁(yè)數(shù): 36/38頁(yè)
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 16B 28SDIP
標(biāo)準(zhǔn)包裝: 15
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: 通孔
封裝/外殼: 28-DIP(0.300",7.62mm)
供應(yīng)商設(shè)備封裝: 28-DIP
包裝: 管件
包括: POR
產(chǎn)品目錄頁(yè)面: 684 (CN2011-ZH PDF)
2007 Microchip Technology Inc.
DS20090C-page 7
MCP23016
1.7.2
OUTPUT LATCH REGISTERS
Two registers provide access to the two port output
latches:
OLAT0 (provides access to the output latch for
port GP0)
OLAT1 (provides access to the output latch for
port GP1)
A read from these registers results in a read of the latch
that controls the output and not the actual port. A write
to these registers updates the output latch that controls
the output.
REGISTER 1-3:
OLAT0 - OUTPUT LATCH REGISTER 0
REGISTER 1-4:
OLAT1 - OUTPUT LATCH REGISTER 1
R/W-0
OL0.7
OL0.6
OL0.5
OL0.4
OL0.3
OL0.2
OL0.1
OL0.0
bit 7
bit 0
bit 7-0
OL0.0:O0.7: Reflects the logic level on the output latch.
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
OL1.7
OL1.6
OL1.5
OL1.4
OL1.3
OL1.2
OL1.1
OL1.0
bit 7
bit 0
bit 7-0
OL1.0:O1.7: Reflects the logic level on the output latch.
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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