Interface - I/O Expanders

Interface - I/O Expanders are specialized Integrated Circuits (ICs) designed to enable a microcontroller or microprocessor to interface with a larger number of input/output (I/O) devices than its available pins would normally allow. By acting as a bridge, they facilitate communication between the processor and multiple peripherals through a more compact connection, using protocols such as I2C or SPI. The main function of I/O expanders is to provide additional ports, which can be configured as inputs to read sensors, buttons, and switches, or as outputs to control LEDs, displays, or other actuators.

The primary uses of these expanders are found in systems where the control unit has limited I/O pins and cannot be connected directly to all the desired peripherals. Characteristics of I/O expanders include the ability to operate on low power, support various communication protocols, and offer features like interrupt generation for efficient data handling. They are used extensively in applications including smartphones, home automation systems, automotive electronics, and industrial controls. Notable manufacturers of Interface - I/O Expanders include Texas Instruments, Microchip Technology, NXP Semiconductors, STMicroelectronics, and Analog Devices.

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Part Number
Manufacturer
Description
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IC I/O EXPANDER 16BIT 24VFBGA
RFQ
IC I/O EXPANDER 16BIT 24UFBGA
RFQ
IC I/O EXPANDER I2C 4B 8SOIC
RFQ
IC I/O EXPANDER I2C 24B 36TFBGA
RFQ
IC I/O EXPANDER I2C 8B 20VQFN
RFQ
IC I/O EXPANDER I2C 8B 20TVSOP
RFQ
IC I/O EXPANDER I2C 8B 16TSSOP
RFQ
IC I/O EXPANDER 16Bit 24HWQFN
RFQ
IC I/O EXPANDER SPI 8B 20QFN
RFQ
IC I/O EXPANDER 8BIT I2C 20-SSOP
RFQ
16-BIT I2C-BUS AND SMBUS LOW POW
RFQ
IC I/O EXPANDER I2C 12XQFN
RFQ
IC I/O EXPANDER I2C 16B 24HWQFN
RFQ
IC I/O EXPANDER I2C 8B 16TSSOP
RFQ
IC I/O EXPANDER I2C 8B 16SSOP
RFQ
IC GPIO EXPANDER 8XQFN
RFQ
IC I/O EXPANDER 8BIT I2C 16HVQFN
RFQ
IC I/O EXPANDER 7B SC70JW-10
RFQ
IC I/O EXPANDER I2C 16B 24SOIC
RFQ
IC I/O EXPANDER I2C 16B 24QSOP
RFQ
IC I/O EXPANDER I2C 4B 16TQFN
RFQ
IC I/O EXPANDER I2C 8B 16QSOP
RFQ
IC I/O EXPANDER I2C 8B 16TQFN
RFQ
IC I/O EXPANDER I2C 8B 16QSOP
RFQ
IC I/O EXPANDER I2C 8B 16TSSOP
RFQ
IC I/O EXPANDER I2C 4B 16QSOP
RFQ
IC I/O EXPANDER I2C 8B 16QSOP
RFQ
IC I/O EXPANDER I2C 16B 24SOIC
RFQ
IC I/O EXPANDER I2C 8B 16TSSOP
RFQ
IC GPIO EXPANDER 24TSSOP
RFQ
 
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