參數(shù)資料
型號： MCP23S08
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(kuò)展
文件頁數(shù)： 5/40頁
文件大?。?/td> 498K
代理商： MCP23S08
2005 Microchip Technology Inc.
DS21919B-page 5
MCP23008/MCP23S08
FIGURE 1-1:
MCP23008 I
2
C DEVICE PROTOCOL
1.3.3.3
SPI Sequential Write/Read
For sequential operations, instead of deselecting the
device by raising CS, the master clocks the next byte
pointed to by the address pointer.
The sequence ends by the raising of CS.
The MCP23S08 address pointer will roll over to
address zero after reaching the last register address.
1.4
Hardware Address Decoder
The hardware address pins are used to determine the
device address. To address a device, the correspond-
ing address bits in the control byte must match the pin
state.
MCP23008 has address pins A2, A1 and A0.
MCP23S08 has address pins A1 and A0.
The pins must be biased externally.
S
P
SR
w
R
OP
ADDR
D
OUT
D
IN
- START
- RESTART
- STOP
- Write
- Read
- Device opcode
- Device address
- Data out from
MCP23008
- Data into
MCP23008
S
P
SR
W
R
OP
ADDR
D
IN
D
IN
....
S
P
W
R
OP
ADDR
D
OUT
D
OUT
....
P
SR
W
OP
D
IN
D
IN
....
P
P
SR
R
D
OUT
D
OUT
....
P
OP
D
OUT
D
OUT
....
P
SR
OP
D
IN
....
P
OP
D
IN
S
P
W
OP
ADDR
D
IN
D
IN
....
Byte and Sequential Write
S
R
OP
SR
R
OP
D
OUT
D
OUT
....
P
Byte and Sequential Read
S
W
OP
ADDR
D
IN
P
S
R
OP
SR
R
OP
D
OUT
P
Byte
Sequential
Byte
Sequential
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP23S08-E/ML 功能描述:接口-I/O擴(kuò)展器 8bit Input/Output Exp SPI 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(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MCP23S08-E/P 功能描述:接口-I/O擴(kuò)展器 In/Out SPI 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(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MCP23S08-E/P 制造商:Microchip Technology Inc 功能描述:I/O Expander IC
MCP23S08-E/SO 功能描述:接口-I/O擴(kuò)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(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MCP23S08-E/SO 制造商:Microchip Technology Inc 功能描述:I/O Expander IC
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