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.

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Esplora Espansori di I/O

Risultati: 1981
16-bit I2C General Purpose IO Expander with Interrupt, Reset, -40 to 85 °C, RoHS
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PCA8575 Series Remote 16-bit I/O Expander for I2C-Bus w/ Interrupt - TSSOP 24
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DistributorSKUMinPkgBulk PricingUpdated
UnikeyICPCA8575PW,11831441Cut TapeUSD
18h
NewarkPCA8575PW,11802500Tape & ReelUSD
AvnetPCA8575PW,11802500USD
2d
Future ElectronicsPCA8575PW,11802500Tape & ReelUSD
Arrow ElectronicsPCA8575PW,11802500USD
I²C-Interfaced Key-Switch Controller and LED Driver/GPIOs with Integrated ESD Protection
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Renesas
CQ82C55AZ
$ 13,544
CMOS Programmable Peripheral Interface 44-Pin MQFP Tray
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Semtech
SX1509QBIULTRT
$ 1,950
Voltage Level Shifting GPIO with LED Driver 28-Pin QFN-UT EP T/R
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onsemi
PCA9654EDTR2G
$ 1,710
I2C/SMBus Interface 5.5V Automotive 16-Pin TSSOP T/R
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IC I/o Expander I2C 40B 48SSOP / I/o Expander 40 I²C 100 Khz 48-SSOP
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MAX7319 Bulk PRODUCTION (Last Updated: 1month ago) Active io expander 2/5V 3mm 400kHz 25mA
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Renesas
IP82C55AZ
$ 25,865
CMOS Programmable Peripheral Interface Parallel I/O Port, 24 I/O, CMOS, PDIP40
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onsemi
PCA9535ECMTTXG
$ 1,289
I2C/SMBus GPIO Expander 100kHz/400kHz 5.5V 24-Pin QFN EP T/R
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