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.
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avnet | PI4IOE5V6416ZDEX | 3500 | 3500 | USD | 2d | ||||||||
| Arrow Electronics | PI4IOE5V6416ZDEX | 339.500 | 3500 | USD | |||||||||
| Verical | PI4IOE5V6416ZDEX | 339.500 | 3500 | USD | |||||||||
| DigiKey | PI4IOE5V6416ZDEXDICT-ND | 38.489 | 1 | Cut Tape | USD | ||||||||
| Newark | PI4IOE5V6416ZDEX | 0 | 1 | Cut Tape | USD |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UnikeyIC | PCA8575PW,118 | 3144 | 1 | Cut Tape | USD | 18h | |||||||
| Newark | PCA8575PW,118 | 0 | 2500 | Tape & Reel | USD | ||||||||
| Avnet | PCA8575PW,118 | 0 | 2500 | USD | 2d | ||||||||
| Future Electronics | PCA8575PW,118 | 0 | 2500 | Tape & Reel | USD | ||||||||
| Arrow Electronics | PCA8575PW,118 | 0 | 2500 | USD |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analog Devices | MAX7360ETL+ | 119 | Tube | USD | 1h | ||||||||
| Rochester Electronics | MAX7360ETL+ | 5 | USD | 18h | |||||||||
| Arrow Electronics | MAX7360ETL+ | 300 | 60 | USD | |||||||||
| Verical | MAX7360ETL+ | 300 | 60 | USD | |||||||||
| DigiKey | MAX7360ETL+-ND | 772 | 1 | Tube | USD |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | CQ82C55AZ | 311 | 1 | USD | |||||||||
| Avnet | CQ82C55AZ | 0 | 960 | 2d | |||||||||
| Win Source | WS-CQ82C55AZ | 20 | 2 | USD | 19h | ||||||||
| Antdic Electronics | CQ82C55AZ | 40.539 | USD | >1wk | |||||||||
| ICPartonline | CQ82C55AZ | 25.801 | USD | >1wk |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DigiKey | SX1509QBIULTRTCT-ND | 2797 | 1 | Cut Tape | USD | ||||||||
| Braemac Americas - Symmetry Electronics | SX1509QBIULTRT | 0 | USD | 19h | |||||||||
| Newark | SX1509QBIULTRT | 0 | 3K | Tape & Reel | USD | ||||||||
| Richardson RFPD | SX1509QBIULTRT | Contatto | 3K | USD | 40m | ||||||||
| Avnet | SX1509QBIULTRT | 0 | 3K | USD | 2d |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avnet | PCA9654EDTR2G | 5000 | 459 | USD | 2d | ||||||||
| DigiKey | PCA9654EDTR2GOSCT-ND | 8532 | 1 | Cut Tape | USD | ||||||||
| Flip Electronics | PCA9654EDTR2G | 2500 | 1d | ||||||||||
| Newark | PCA9654EDTR2G | 0 | 2500 | Tape & Reel | USD | ||||||||
| Mouser | 863-PCA9654EDTR2G | 9964 | 1 | Tape & Reel | USD |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | CY8C9540A-24PVXIT | 875 | 1 | Cut Tape | USD | ||||||||
| DigiKey | 448-CY8C9540A-24PVXITCT-ND | 941 | 1 | Cut Tape | USD | ||||||||
| Avnet | CY8C9540A-24PVXIT | 0 | 1K | USD | 2d | ||||||||
| Arrow Electronics | CY8C9540A-24PVXIT | 0 | 1K | USD | |||||||||
| Mouser | 727-CY8C9540A24PVXIT | 913 | 1 | Tape & Reel | USD |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MAX7319ATE+ | 58 | 1 | USD | |||||||||
| Analog Devices | MAX7319ATE+ | 588 | Tube | USD | 1h | ||||||||
| Rochester Electronics | MAX7319ATE+ | 10.880 | USD | 18h | |||||||||
| DigiKey | MAX7319ATE+-ND | 200 | 1 | Tube | USD | ||||||||
| Richardson RFPD | MAX7319ATE+ | Contatto | 200 | 40m |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avnet | PCA9535ECMTTXG | 972 | 455 | USD | 2d | ||||||||
| Flip Electronics | PCA9535ECMTTXG | 486 | 1d | ||||||||||
| Newark | PCA9535ECMTTXG | 0 | 3K | Tape & Reel | USD | ||||||||
| RS (Formerly Allied Electronics) | PCA9535ECMTTXG | 0 | 10 | Bulk | USD | 6h | |||||||
| Worldway Electronics | PCA9535ECMTTXG | 19.492 | 7 | Tape & Reel | USD | 18h |