I/O Expanders
I/O Expanders are essential building blocks in modern electronics design and procurement. Octatronics catalogs 532+ listed parts in this category from manufacturers such as onsemi, Renesas and NXP Semiconductors, with searchable part numbers, package data, lifecycle signals, and RFQ support for engineering and purchasing teams.
Product Series & Base Models
Navigate by model series to compare ordering variants and technical specifications within the I/O Expanders family.
PCA9536DGKR
PCA9536DGKR variants from Texas Instruments
MAX7317ATE
MAX7317ATE variants from Analog Devices
MAX7315AUE
MAX7315AUE variants from Analog Devices
MAX7311AUG
MAX7311AUG variants from Analog Devices
MAX7301AAX
MAX7301AAX variants from Analog Devices
Browse I/O Expanders Products
| PART NUMBER | MANUFACTURER | DESCRIPTION | STOCK | QTY / ACTION |
|---|---|---|---|---|
| PCF8574APWR | Texas Instruments | — | 18,827 | |
| PCA9557PWR | Texas Instruments | — | 13,020 | |
| PCF8574ADWG4 | Texas Instruments | — | 11,616 | |
| PCA9557DT | Texas Instruments | — | 1,825 | |
| PCA9557DR | Texas Instruments | — | 11,142 | |
| PCA9555RGERG4 | Texas Instruments | — | 2,615 | |
| PCA9555DWRG4 | Texas Instruments | — | 2,979 | |
| PCA9555PWRE4 | Texas Instruments | — | 2,024 | |
| PCA9555DWR | Texas Instruments | — | 36,156 | |
| PCA9555DBR | Texas Instruments | — | 13,913 |
How to Choose I/O Expanders
A practical selection framework for I/O Expanders covering specifications, packaging, lifecycle, and sourcing on Octatronics.
Define electrical and environmental requirements
Start with the required function and operating conditions for I/O Expanders, then lock in critical parameters such as function, supply voltage, interface, package, and temperature grade. Match these against datasheet limits, not catalog summaries alone.
Validate package and land pattern compatibility
Confirm the I/O Expanders package matches your PCB footprint, pick-and-place constraints, and moisture sensitivity handling. Verify reel/tape or tube packaging for production.
Check lifecycle, compliance, and alternates
Review lifecycle status (Active, NRND, EOL), RoHS, and approved alternate sources for I/O Expanders before committing to high-volume builds. Use Octatronics cross-reference data when a drop-in replacement is needed.
Compare manufacturers and request pricing
Filter I/O Expanders by manufacturers such as onsemi and Renesas, compare key specs side by side, then submit an RFQ with quantity, target delivery, and traceability requirements.
Related Selection Resources
Top I/O Expanders Manufacturers
onsemi
onsemi I/O Expanders products are available for part-number review, stock checks, and RFQ support.
28,226 productsRenesas
Renesas I/O Expanders products are available for part-number review, stock checks, and RFQ support.
74,605 products
NXP Semiconductors
NXP Semiconductors I/O Expanders products are available for part-number review, stock checks, and RFQ support.
20,288 products
Microchip Technology
Microchip Technology I/O Expanders products are available for part-number review, stock checks, and RFQ support.
67,462 products
Texas Instruments
Texas Instruments I/O Expanders products are available for part-number review, stock checks, and RFQ support.
84,045 products
Diodes Incorporated
Diodes Incorporated I/O Expanders products are available for part-number review, stock checks, and RFQ support.
16,703 products
Analog Devices
Analog Devices I/O Expanders products are available for part-number review, stock checks, and RFQ support.
82,970 products
STMicroelectronics
STMicroelectronics I/O Expanders products are available for part-number review, stock checks, and RFQ support.
19,050 productsAbout I/O Expanders
Frequently Asked Questions
Octatronics can help source a wide range of I/O Expanders from major manufacturers worldwide, including active production parts, long-lead-time items, and hard-to-find components.
Yes. You can submit a single part number or upload a BOM with multiple parts. Our team will check stock, date code, lead time, and pricing for each item.
Availability depends on the specific part number and supplier source. For important orders, buyers can request packaging photos, labels, date code information, and traceability documents.
Yes. Octatronics supports sourcing for active, end-of-life, obsolete, and hard-to-find components through our global supplier network.
Please provide the part number, manufacturer, quantity, required date code, target price, delivery country, and whether original packaging or COC is required.
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