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.
Esplora Espansori di I/O
Risultati: 1981
Distributori autorizzati
Distributori di stock non autorizzati
I2C/SMBus Interface 100kHz/400kHz 5.5V 24-Pin TSSOP T/R
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | TCA6416PWT | 15.037 | USD | 1d | |||||||||
| Verical | TCA6416PWT | 15.037 | 152 | USD | |||||||||
| DigiKey | 296-TCA6416PWTCT-ND | 240 | 1 | Cut Tape | USD | ||||||||
| Win Source | WS-TCA6416PWT | 5500 | 14 | USD | 33m | ||||||||
| Worldway Electronics | TCA6416PWT | 26.804 | 7 | Tape & Reel | USD | 5h |
CAT9534 Tape & Reel (TR) Obsolete I2C SMBus io expander 5.5V 5mm 400kHz 10mA 24mA
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | CAT9534YI-GT2 | 19.873 | USD | 1d | |||||||||
| Verical | CAT9534YI-GT2 | 9721 | 209 | USD | |||||||||
| Component Stockers USA | CAT9534YI-GT2 | 14.098 | USD | >1wk | |||||||||
| Win Source | WS-CAT9534YI-GT2 | 7000 | 40 | USD | 33m | ||||||||
| Worldway Electronics | CAT9534YI-GT2 | 11.930 | 7 | Tape & Reel | USD | 5h |
I2C/SMBus Interface 100kHz/400kHz 5.5V 16-Pin TSSOP T/R
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9554PW/DG,118 | 608 | USD | 1d | |||||||||
| UnikeyIC | PCA9554PW/DG,118 | 575 | 173 | Cut Tape | USD | 2d | |||||||
| Verical | PCA9554PW/DG,118 | 608 | 316 | USD | |||||||||
| Win Source | WS-PCA9554PW/DG,118 | 2500 | 60 | USD | 33m | ||||||||
| Worldway Electronics | PCA9554PW/DG,118 | 17.637 | 7 | Bulk | USD | 5h |
I2C/SMBus Interface 100kHz/400kHz 5.5V Automotive 16-Pin TSSOP Bulk
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9538PW,112 | 242 | USD | 1d | |||||||||
| UnikeyIC | PCA9538PW,112 | 228 | 188 | Tube | USD | 2d | |||||||
| Verical | PCA9538PW,112 | 19 | 11 | USD | |||||||||
| Win Source | WS-PCA9538PW,112 | 20 | 65 | USD | 33m | ||||||||
| Worldway Electronics | PCA9538PW,112 | 12.033 | 7 | Tube | USD | 5h |
PCA9535E Series 5.5 V 100 kHz 16-bit Low-Power I/O Expander - TSSOP-24
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avnet | NLVPCA9535EDTR2G | 0 | 667 | 1d | |||||||||
| Farnell | NLVPCA9535EDTR2G | 0 | 2500 | Tape & Reel | USD* | 10h | |||||||
| Win Source | WS-NLVPCA9535EDTR2G | 17.952 | 40 | USD | 33m | ||||||||
| Worldway Electronics | NLVPCA9535EDTR2G | 25.918 | 7 | Tape & Reel | USD | 5h | |||||||
| Fmall Co., Limited | NLVPCA9535EDTR2G | 24.970 | USD | >1wk |
8-bit I2C-bus and SMBus I/O port with interrupt, 2-kbit EEPROM and 6 address pins
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9501PW,112 | 4403 | USD | 1d | |||||||||
| UnikeyIC | PCA9501PW,112 | 3824 | 131 | Tube | USD | 2d | |||||||
| Verical | PCA9501PW,112 | 2008 | 8 | USD | |||||||||
| Component Stockers USA | PCA9501PW,112 | 8349 | USD | >1wk | |||||||||
| Win Source | WS-PCA9501PW,112 | 420 | 30 | USD | 33m |
PCA9518A Series Expandable 5-Channel Bidirectional Buffer I2C-Bus Hub - TSSOP 20
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9518APW,512 | 7020 | USD | 1d | |||||||||
| UnikeyIC | PCA9518APW,512 | 6638 | 118 | Tube | USD | 2d | |||||||
| Verical | PCA9518APW,512 | 1965 | 215 | USD | |||||||||
| Component Stockers USA | PCA9518APW,512 | 12.889 | USD | >1wk | |||||||||
| Win Source | WS-PCA9518APW,512 | 2610 | 16 | USD | 33m |
TEXAS INSTRUMENTS PCA9539DWR I/O Expander, 16bit, 400 kHz, I2C, SMBus, 2.3 V, 5.5 V, SOIC
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 296-20955-1-ND | 44 | 1 | Cut Tape | USD | ||||||||
| Mouser | 595-PCA9539DWR | 883 | 1 | Tape & Reel | USD | ||||||||
| Win Source | WS-PCA9539DWR | 880 | 8 | USD | 33m | ||||||||
| Worldway Electronics | PCA9539DWR | 26.102 | 7 | Tape & Reel | USD | 5h | |||||||
| Easev | PCA9539DWR | 3091 | USD | >1wk |
5-channel bidirectional 3- to 3.6-V expandable 400-kHz I2C/SMBus buffer/hub 20-SOIC -40 to 85
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9518DWR | 7759 | USD | 1d | |||||||||
| Verical | PCA9518DWR | 7759 | 224 | USD | |||||||||
| Win Source | WS-PCA9518DWR | 8000 | 23 | USD | 33m | ||||||||
| Worldway Electronics | PCA9518DWR | 25.515 | 7 | Tape & Reel | USD | 5h | |||||||
| ICPartonline | PCA9518DWR | 5512 | USD | >1wk |
I2C Interface 1000kHz 5.5V 24-Pin SO T/R
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9673D,118 | 1281 | USD | 1d | |||||||||
| UnikeyIC | PCA9673D,118 | 1211 | 119 | Cut Tape | USD | 2d | |||||||
| Verical | PCA9673D,118 | 700 | 216 | USD | |||||||||
| Win Source | WS-PCA9673D,118 | 9600 | 4 | USD | 33m | ||||||||
| Worldway Electronics | PCA9673D,118 | 15.033 | 7 | Bulk | USD | 5h |
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