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 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MAX7319AEE+ | 143 | 1 | USD | |||||||||
| Analog Devices | MAX7319AEE+ | 31.403 | Tube | USD | 5h | ||||||||
| DigiKey | MAX7319AEE+-ND | 424 | 1 | Tube | USD | ||||||||
| Arrow Electronics | MAX7319AEE+ | 0 | 200 | USD | |||||||||
| Farnell | MAX7319AEE+ | 143 | 1 | USD* | 8h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MAX7370ETG+ | 101 | 1 | USD | |||||||||
| Analog Devices | MAX7370ETG+ | 37 | Tube | USD | 5h | ||||||||
| DigiKey | MAX7370ETG+-ND | 357 | 1 | Tube | USD | ||||||||
| Arrow Electronics | MAX7370ETG+ | 0 | 258 | USD | |||||||||
| Farnell | MAX7370ETG+ | 101 | 1 | USD* | 8h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MAX7312AUG+ | 68 | 1 | USD | |||||||||
| Analog Devices | MAX7312AUG+ | 555 | Tube | USD | 5h | ||||||||
| DigiKey | MAX7312AUG+-ND | 2837 | 1 | Tube | USD | ||||||||
| Arrow Electronics | MAX7312AUG+ | 0 | 124 | USD | |||||||||
| Farnell | MAX7312AUG+ | 68 | 1 | USD* | 8h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UnikeyIC | PCA9535PW,112 | 13 | 1 | Cut Tape | USD | 2d | |||||||
| Arrow Electronics | PCA9535PW,112 | 1823 | 1 | USD | |||||||||
| Avnet | PCA9535PW,112 | 0 | 1575 | USD | 1d | ||||||||
| Farnell | PCA9535PW,112 | 1629 | 1 | USD* | 8h | ||||||||
| Worldway Electronics | PCA9535PW112 | 10.413 | 7 | Tape & Reel | USD | 3h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 31-PI4IOE5V9554LEXCT-ND | 2149 | 1 | Cut Tape | USD | ||||||||
| Newark | PI4IOE5V9554LEX | 0 | 1 | Cut Tape | USD | ||||||||
| Avnet | PI4IOE5V9554LEX | 0 | 2500 | USD | 1d | ||||||||
| Arrow Electronics | PI4IOE5V9554LEX | 0 | 2500 | USD | |||||||||
| Mouser | 729-PI4IOE5V9554LEX | 1299 | 1 | Tape & Reel | USD |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DigiKey | PI4IOE5V9536UEXDICT-ND | 1979 | 1 | Cut Tape | USD | ||||||||
| Newark | PI4IOE5V9536UEX | 0 | 1 | Cut Tape | USD | ||||||||
| Avnet | PI4IOE5V9536UEX | 0 | 2500 | USD | 1d | ||||||||
| Arrow Electronics | PI4IOE5V9536UEX | 0 | 2500 | USD | |||||||||
| Mouser | 729-PI4IOE5V9536UEX | 3538 | 1 | Tape & Reel | USD |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MAX7310ATE+ | 32 | 1 | USD | |||||||||
| Analog Devices | MAX7310ATE+ | 396 | Tube | USD | 5h | ||||||||
| DigiKey | MAX7310ATE+-ND | 384 | 1 | Tube | USD | ||||||||
| Arrow Electronics | MAX7310ATE+ | 0 | 150 | USD | |||||||||
| Farnell | MAX7310ATE+ | 32 | 1 | USD* | 8h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Verical | PCA9535HF,118 | 353 | 7 | USD | |||||||||
| Arrow Electronics | PCA9535HF,118 | 353 | 1 | USD | |||||||||
| Newark | PCA9535HF,118 | 0 | 1 | Cut Tape | USD | ||||||||
| Avnet | PCA9535HF,118 | 0 | 6K | USD | 1d | ||||||||
| Farnell | PCA9535HF,118 | 0 | 1 | Cut Tape | USD* | 8h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MAX7321ATE+ | 108 | 1 | USD | |||||||||
| Analog Devices | MAX7321ATE+ | 265 | Tube | USD | 5h | ||||||||
| DigiKey | MAX7321ATE+-ND | 1022 | 1 | Tube | USD | ||||||||
| Arrow Electronics | MAX7321ATE+ | 0 | 200 | USD | |||||||||
| Farnell | MAX7321ATE+ | 108 | 1 | USD* | 8h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MAX7420EUA+ | 50 | 1 | USD | |||||||||
| Analog Devices | MAX7420EUA+ | 670 | Tube | USD | 5h | ||||||||
| DigiKey | MAX7420EUA+-ND | 2290 | 1 | Tube | USD | ||||||||
| Arrow Electronics | MAX7420EUA+ | 0 | 50 | USD | |||||||||
| Farnell | MAX7420EUA+ | 50 | 1 | USD* | 8h |


