參數(shù)資料
型號(hào)： MCP23017T-E/SO
元件分類： 微控制器/微處理器
英文描述： 16 I/O, PIA-GENERAL PURPOSE, PDSO28
封裝： 7.50 MM, PLASTIC, SOIC-28
文件頁數(shù)： 45/48頁
文件大小： 915K
代理商： MCP23017T-E/SO
MCP23017/MCP23S17
DS21952B-page 6
2007 Microchip Technology Inc.
1.3.2.2
I2C Read Operation
I2C Read operations include the control byte sequence,
as shown in the bottom of Figure 1-1. This sequence is
followed by another control byte (including the Start
condition and ACK) with the R/W bit set (R/W = 1). The
MCP23017 then transmits the data contained in the
addressed register. The sequence is ended with the
master generating a Stop or Restart condition.
1.3.2.3
I2C Sequential Write/Read
For sequential operations (Write or Read), instead of
transmitting a Stop or Restart condition after the data
transfer, the master clocks the next byte pointed to by
the address pointer (see Section 1.3.1 “Byte Mode
and Sequential Mode” for details regarding sequential
operation control).
The sequence ends with the master sending a Stop or
Restart condition.
The MCP23017 Address Pointer will roll over to
address zero after reaching the last register address.
Refer to Figure 1-1.
1.3.3
SPI INTERFACE
1.3.3.1
SPI Write Operation
The SPI write operation is started by lowering CS. The
Write command (slave address with R/W bit cleared) is
then clocked into the device. The opcode is followed by
an address and at least one data byte.
1.3.3.2
SPI Read Operation
The SPI read operation is started by lowering CS. The
SPI read command (slave address with R/W bit set) is
then clocked into the device. The opcode is followed by
an address, with at least one data byte being clocked
out of the device.
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. (see Section 1.3.1
regarding sequential operation control).
The sequence ends by the raising of CS.
The MCP23S17 Address Pointer will roll over to
address zero after reaching the last register address.
相關(guān)PDF資料
PDF描述
MCP23017-E/ML 16 I/O, PIA-GENERAL PURPOSE, PQCC28
MCP23S17-E/ML 16 I/O, PIA-GENERAL PURPOSE, PQCC28
MCP23S18-E/SO PIA-GENERAL PURPOSE, PDSO28
MCP23S18T-E/SP PIA-GENERAL PURPOSE, PDIP28
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP23018 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:16-Bit I/O Expander with Open-Drain Outputs
MCP23018-E/MJ 功能描述:接口-I/O擴(kuò)展器 16B I/O Expander 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(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MCP23018-E/MJ 制造商:Microchip Technology Inc 功能描述:; Bus Frequency:3.4MHz; IC Interface Typ 制造商:Microchip Technology Inc 功能描述:IC, I/O EXPANDER, 16BIT, 3.4MHZ, QFN-24
MCP23018-E/SO 功能描述:接口-I/O擴(kuò)展器 16B I/O Expander 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(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MCP23018-E/SP 功能描述:接口-I/O擴(kuò)展器 16B I/O Expander 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(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
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