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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	1.7 MHz
Interface	Serial-I2C
Maximum Supply Voltage	5.5 V
Minimum Supply Voltage	4.5 V
Mounting Type	Surface Mount
Number of I/O Ports	8
Number of Pins	18
Package Type	SOIC
Supply Voltage	4.5 V
Technology	8
Type	Programmable Peripheral Interface
关键词

Frequency, Clock 1.7 MHz  Microchip Technology Inc. Frequency, Clock 1.7 MHz  IO Expanders Frequency, Clock 1.7 MHz  Microchip Technology Inc. IO Expanders Frequency, Clock 1.7 MHz   Interface Serial-I2C  Microchip Technology Inc. Interface Serial-I2C  IO Expanders Interface Serial-I2C  Microchip Technology Inc. IO Expanders Interface Serial-I2C   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 Surface Mount  Microchip Technology Inc. Mounting Type Surface Mount  IO Expanders Mounting Type Surface Mount  Microchip Technology Inc. IO Expanders Mounting Type Surface Mount   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 SOIC  Microchip Technology Inc. Package Type SOIC  IO Expanders Package Type SOIC  Microchip Technology Inc. IO Expanders Package Type SOIC   Supply Voltage 4.5 V  Microchip Technology Inc. Supply Voltage 4.5 V  IO Expanders Supply Voltage 4.5 V  Microchip Technology Inc. IO Expanders Supply Voltage 4.5 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