MCP23S17T-E/SS
The MCP23017/MCP23S17 (MCP23X17) device family provides 16-bit, general purpose parallel I/O expansion for I2C bus or SPI applications. The two devices differ only in the serial interface.
• MCP23017 – I2C interface
• MCP23S17 – SPI interface
The MCP23X17 consists of multiple 8-bit configuration registers for input, output and polarity selection. The system master can enable the I/Os as either inputs or outputs by writing the I/O configuration bits (IODIRA/B). The data for each input or output is kept in the corresponding input or output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master.
MCP23017/MCP23S17 (MCP23X17)系列器件为I2C总线或SPI应用提供16位通用并行I/O扩展。这两款设备的不同之处仅在于串行接口。
MCP 23017–I2C接口
MCP 23s 17–SPI接口
MCP23X17由多个8位配置寄存器组成,用于输入、输出和极性选择。通过写入I/O配置位(IODIRA/B ),系统主机可以将I/O作为输入或输出使能。每个输入或输出的数据保存在相应的输入或输出寄存器中。输入端口寄存器的极性可以通过极性反转寄存器反转。系统主机可以读取所有寄存器。
Product Features 产品特性
16-bit input/output port expander with interrupt output
Cascadable for up to 8 devices on one bus
25mA sink/source capability per I/O
Supports up to 10MHz SPI™ clock speeds
- 带中断输出的16位输入/输出端口扩展器
- 一条总线上最多可级联8个器件
- 每25mA吸电流/源电流能力
- 支持最高10MHz SPI时钟速度
MCP23S17T-E/SS
The MCP23017/MCP23S17 (MCP23X17) device family provides 16-bit, general purpose parallel I/O expansion for I2C bus or SPI applications. The two devices differ only in the serial interface.
• MCP23017 – I2C interface
• MCP23S17 – SPI interface
The MCP23X17 consists of multiple 8-bit configuration registers for input, output and polarity selection. The system master can enable the I/Os as either inputs or outputs by writing the I/O configuration bits (IODIRA/B). The data for each input or output is kept in the corresponding input or output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master.
MCP23017/MCP23S17 (MCP23X17)系列器件为I2C总线或SPI应用提供16位通用并行I/O扩展。这两款设备的不同之处仅在于串行接口。
MCP 23017–I2C接口
MCP 23s 17–SPI接口
MCP23X17由多个8位配置寄存器组成,用于输入、输出和极性选择。通过写入I/O配置位(IODIRA/B ),系统主机可以将I/O作为输入或输出使能。每个输入或输出的数据保存在相应的输入或输出寄存器中。输入端口寄存器的极性可以通过极性反转寄存器反转。系统主机可以读取所有寄存器。
Product Features 产品特性
16-bit input/output port expander with interrupt output
Cascadable for up to 8 devices on one bus
25mA sink/source capability per I/O
Supports up to 10MHz SPI™ clock speeds
- 带中断输出的16位输入/输出端口扩展器
- 一条总线上最多可级联8个器件
- 每25mA吸电流/源电流能力
- 支持最高10MHz SPI时钟速度