參數(shù)資料
型號： MCP23008
廠商： Microchip Technology Inc.
英文描述： 8-Bit I/O Expander with Serial Interface
中文描述： 8位的I / O串行接口擴展
文件頁數(shù)： 6/40頁
文件大小： 498K
代理商： MCP23008
MCP23008/MCP23S08
DS21919B-page 6
2005 Microchip Technology Inc.
1.4.1
ADDRESSING I
2
C DEVICES
(MCP23008)
The MCP23008 is a slave I
2
C device that supports 7-bit
slave addressing, with the read/write bit filling out the
control byte. The slave address contains four fixed bits
and three user-defined hardware address bits (pins A2,
A1 and A0). Figure 1-2 shows the control byte format.
1.4.2
ADDRESSING SPI DEVICES
(MCP23S08)
The MCP23S08 is a slave SPI device. The slave
address contains five fixed bits and two user-defined
hardware address bits (pins A1 and A0), with the
read/write bit filling out the control byte. Figure 1-3
shows the control byte format.
FIGURE 1-2:
I
2
C CONTROL BYTE
FORMAT
FIGURE 1-3:
SPI CONTROL BYTE
FORMAT
FIGURE 1-4:
I
2
C ADDRESSING REGISTERS
FIGURE 1-5:
SPI ADDRESSING REGISTERS
S
0
1
0
0
A2
A1
A0
R/W ACK
Start
bit
Slave Address
R/W bit
ACK bit
Control Byte
R/W =
0
= write
R/W =
1
= read
0
1
0
0
0
A1
A0
R/W
Slave Address
R/W bit
Control Byte
R/W =
0
= write
R/W =
1
= read
CS
S
0
1
0
0
A2
A1
A0
0
ACK
A7
A6
A5
A4
A3
A2
A1
A0
ACK
Device Opcode
Register Address
R/W = 0
The ACKs are provided by the MCP23008.
0
1
0
0
0
A1
A0
R/W
A7
A6
A5
A4
A3
A2
A1
A0
Device Opcode
Register Address
CS
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相關代理商/技術參數(shù)
參數(shù)描述
MCP23008_07 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Bit I/O Expander with Serial Interface
MCP23008-E/ML 功能描述:接口-I/O擴展器 8bit Input/Output Exp I2C interface RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MCP23008-E/P 功能描述:接口-I/O擴展器 In/Out I2C int RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MCP23008-E/SO 功能描述:接口-I/O擴展器 In/Out I2C int RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MCP23008-E/SO 制造商:Microchip Technology Inc 功能描述:I/O Expander IC
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