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The Microchip I/O Expander are 8- and 16-bit input/output expander designed to provide embedded systems with general-purpose remote I/O expansion through an IC™ and SPI serials port. The fully bi-directional I/Os default to inputs and can be configured as inputs or outputs. Additionally, there are multiple 8-bit registers that are programmable and provide for configuration (input or output control), output value, and polarity (active low or high).

Frequency, Clock	10 MHz
Interface	Serial-SPI
Maximum Supply Voltage	5.5 V
Minimum Supply Voltage	4.5 V
Mounting Type	Through Hole
Number of I/O Ports	8
Number of Pins	18
Package Type	PDIP
Supply Voltage	4.5 to 5.5 V
Technology	8
Type	Programmable Peripheral Interface
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• Microchip Technology Inc.
  Microchip MCP23S17-E/SP, 16-channel 16 bit I/O Expander 10MHz, SPI, 28-Pin PDIP
  
  型号：MCP23S17-E/SP
  仓库库存编号：70046141
  
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Frequency, Clock 10 MHz  Microchip Technology Inc. Frequency, Clock 10 MHz  IO Expanders Frequency, Clock 10 MHz  Microchip Technology Inc. IO Expanders Frequency, Clock 10 MHz   Interface Serial-SPI  Microchip Technology Inc. Interface Serial-SPI  IO Expanders Interface Serial-SPI  Microchip Technology Inc. IO Expanders Interface Serial-SPI   Maximum Supply Voltage 5.5 V  Microchip Technology Inc. Maximum Supply Voltage 5.5 V  IO Expanders Maximum Supply Voltage 5.5 V  Microchip Technology Inc. IO Expanders Maximum Supply Voltage 5.5 V   Minimum Supply Voltage 4.5 V  Microchip Technology Inc. Minimum Supply Voltage 4.5 V  IO Expanders Minimum Supply Voltage 4.5 V  Microchip Technology Inc. IO Expanders Minimum Supply Voltage 4.5 V   Mounting Type Through Hole  Microchip Technology Inc. Mounting Type Through Hole  IO Expanders Mounting Type Through Hole  Microchip Technology Inc. IO Expanders Mounting Type Through Hole   Number of I/O Ports 8  Microchip Technology Inc. Number of I/O Ports 8  IO Expanders Number of I/O Ports 8  Microchip Technology Inc. IO Expanders Number of I/O Ports 8   Number of Pins 18  Microchip Technology Inc. Number of Pins 18  IO Expanders Number of Pins 18  Microchip Technology Inc. IO Expanders Number of Pins 18   Package Type PDIP  Microchip Technology Inc. Package Type PDIP  IO Expanders Package Type PDIP  Microchip Technology Inc. IO Expanders Package Type PDIP   Supply Voltage 4.5 to 5.5 V  Microchip Technology Inc. Supply Voltage 4.5 to 5.5 V  IO Expanders Supply Voltage 4.5 to 5.5 V  Microchip Technology Inc. IO Expanders Supply Voltage 4.5 to 5.5 V   Technology 8  Microchip Technology Inc. Technology 8  IO Expanders Technology 8  Microchip Technology Inc. IO Expanders Technology 8   Type Programmable Peripheral Interface  Microchip Technology Inc. Type Programmable Peripheral Interface  IO Expanders Type Programmable Peripheral Interface  Microchip Technology Inc. IO Expanders Type Programmable Peripheral Interface