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.
Results: 1,981
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Non-Authorized Stocking Distributors
PCA9537 Series 4-Bit I2C/SMBus Low Power I/O Port w/ Interrupt - TSSOP-10
NXP SemiconductorsDistributor
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PCA9557D,112
$ 0.586
I/o Expander, 8Bit, 400 Khz, I2C, Smbus, 2.3 V, 5.5 V, Soic Rohs Compliant: Yes
NXP SemiconductorsDistributor
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TCA9536ADTMR
$ 0.865
Interface - I/O Expanders Remote 4-Bit I C and SMBus I/O expander with configuration registers
Texas InstrumentsDistributor
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TCA9554ADWT
$ 1.070
8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers 16-SOIC -40 to 85
Texas InstrumentsDistributor
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MAX9263GCB/V+
$ 10.102
HDCP Gigabit Multimedia Serial Link Serializer/Deserializer 1.8V to 3.3V 64-Pin TQFP-EP Tray
Analog DevicesDistributor
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CAT9554WI-G
$ 0.802
IC XPNDR 400KHZ I2C SMBUS 16SOIC / I/O Expander 8 I2C, SMBus 400 kHz 16-SOIC
onsemiDistributor
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PCA9554DB,112
$ 0.500
I/O Expander, 8Bit, 400 Khz, I2c, Smbus, 2.3 V, 5.5 V, Ssop Rohs Compliant: Yes
NXP SemiconductorsDistributor
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