I/O Expanders

ICs for increasing input/output capacity in microcontroller-based systems

I/O expanders add extra digital inputs and outputs to microcontrollers and processors without needing more pins. An I/O expander is ideal for applications like keypads, LEDs, and sensors where pin count is limited but flexibility is key. Integrated I/O expanders connect over I2C, SPI, or serial interfaces to streamline board layout and simplify wiring. Use Octopart to quickly find the I/O expander ICs or other interface components you need. You can then compare suppliers, view datasheets, and check real-time pricing and availability.

I migliori produttori

Esplora Espansori di I/O

Risultati: 1981
MAX7325 Series 400 kHz I2C Port Expander 8 Push-Pull/8 Open-Drain I/Os-TQFN-24
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IC SMART CARD 28TSSOP / Smart Card Interface 20MHz 3.3V/5V 700mW 28-Pin TSSOP
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Renesas
CMQ82C55AZ96
$ 9,516
4.5 - 5.5 V Open Drain 24 I/O CMOS Programmable Peripheral Interface - MQFP-44
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Modelli CAD
I2C Interface 400kHz 5.5V Automotive 16-Pin TQFN EP T/R / IC I/O EXPANDER I2C 8B 16TQFN
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Analog Devices
DS2406+
$ 5,130
1-Wire IC 2 chan. switch + memory Operating temperature: -40...+85 °C Package: TO-92
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5-channel bidirectional 3- to 3.6-V expandable 400-kHz I2C/SMBus buffer/hub 20-SOIC -40 to 85
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Modelli CAD
Mobile I/O Companion Supporting Keyscan, I/O Expansion, PWM, and ACCESS.bus Host Interface 25-DSBGA -40 to 85
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Modelli CAD
PCA9554 Tape & Reel (TR) Active I2C SMBus io expander 3V 4mm 400kHz 10mA 25mA
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Modelli CAD
Interface - I/O Expanders I C Port Expander with 4 Push-Pull Outputs and 4 Open-Drain I/Os
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IC LED DRIVER LINEAR 20MA 16TQFN / LED Driver IC 10 Output Linear Dimming 20mA 16-TQFN (3x3)
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