- 您现在的位置：买卖IC网 > PDF目录67986 > MCP23S17T-E/SS 16 I/O, PIA-GENERAL PURPOSE, PDSO28 PDF资料下载
参数资料
| 型号： | MCP23S17T-E/SS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16 I/O, PIA-GENERAL PURPOSE, PDSO28 |
| 封装： | 5.30 MM, PLASTIC, SSOP-28 |
| 文件页数： | 47/48页 |
| 文件大小： | 915K |
| 代理商： | MCP23S17T-E/SS |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页当前第47页第48页
MCP23017/MCP23S17
DS21952B-page 8
2007 Microchip Technology Inc.
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. The pins must be biased externally.
1.4.1
ADDRESSING I2C DEVICES
(MCP23017)
The MCP23017 is a slave I2C interface 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
(MCP23S17)
The MCP23S17 is a slave SPI device. The slave
address contains four fixed bits and three user-defined
hardware address bits (if enabled via IOCON.HAEN)
(pins A2, A1 and A0) with the read/write bit filling out
the control byte. Figure 1-3 shows the control byte
format. The address pins should be externally biased
even if disabled (IOCON.HAEN = 0).
FIGURE 1-2:
I2C CONTROL BYTE
FORMAT
FIGURE 1-3:
SPI CONTROL BYTE
FORMAT
FIGURE 1-4:
I2C ADDRESSING REGISTERS
FIGURE 1-5:
SPI ADDRESSING REGISTERS
S
0
1
0
A2A1A0 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
A2 A1 A0 R/W
Slave Address
R/W bit
Control Byte
R/W = 0 = write
R/W = 1 = read
CS
S0
1
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 MCP23017.
0
100
A2
*
A1
*
A0
*
R/W
A7
A6A5A4A3A2A1A0
Device Opcode
Register Address
CS
* Address pins are enabled/disabled via IOCON.HAEN.
相关PDF资料 |
PDF描述 |
|---|---|
| MCP23017T-E/SO | 16 I/O, PIA-GENERAL PURPOSE, PDSO28 |
| 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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP23S18 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:16-Bit I/O Expander with Open-Drain Outputs |
| MCP23S18-E/MJ | 功能描述:接口-I/O扩展器 16B I/O Expander SPI interface RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MCP23S18-E/MJ | 制造商:Microchip Technology Inc 功能描述:; Bus Frequency:10MHz; IC Interface Type |
| MCP23S18-E/SO | 功能描述:接口-I/O扩展器 16B I/O Expander SPI interface RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MCP23S18-E/SP | 功能描述:接口-I/O扩展器 16B I/O Expander SPI interface RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。