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 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9554DB | 31.586 | USD | 1d | |||||||||
| Verical | PCA9554DB | 5070 | 228 | USD | |||||||||
| Mouser | 595-PCA9554DB | 495 | 1 | Tube | USD | ||||||||
| Component Stockers USA | PCA9554DB | 34.537 | USD | >1wk | |||||||||
| ICPartonline | PCA9554DB | 9280 | USD | >1wk |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCAL6416AER | 11.806 | USD | 1d | |||||||||
| UnikeyIC | PCAL6416AER | 11.169 | 76 | Cut Tape | USD | 2d | |||||||
| Verical | PCAL6416AER | 11.806 | 192 | USD | |||||||||
| Win Source | WS-PCAL6416AER | 2820 | 17 | USD | 31m | ||||||||
| Worldway Electronics | PCAL6416AER | 6940 | 7 | Bulk | USD | 5h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avnet | SX00-0B00-00 | 0 | 144 | USD | 1d | ||||||||
| Component Stockers USA | SX00-0B00-00 | 13 | USD | >1wk | |||||||||
| Worldway Electronics | SX00-0B00-00 | 2396 | 7 | Bulk | USD | 5h | |||||||
| Win Source | WS-SX00-0B00-00 | 1994 | 1 | USD | 31m | ||||||||
| ICPartonline | SX00-0B00-00 | 11.199 | USD | >1wk |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mouser | 595-TCA1116RTWR | 3173 | 1 | Tape & Reel | USD | ||||||||
| Win Source | WS-TCA1116RTWR | 7628 | 24 | USD | 31m | ||||||||
| Worldway Electronics | TCA1116RTWR | 13.329 | 7 | Tape & Reel | USD | 5h | |||||||
| ICPartonline | TCA1116RTWR | 5485 | USD | >1wk | |||||||||
| IC Components Ltd. | TCA1116RTWR | 15.347 | USD | 2d |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avnet | SX03-0B00-00 | 0 | 160 | USD | 1d | ||||||||
| Worldway Electronics | SX03-0B00-00 | 2264 | 7 | Bulk | USD | 5h | |||||||
| Win Source | WS-SX03-0B00-00 | 1923 | 1 | USD | 31m | ||||||||
| Classic Components | SX03-0B00-00 | 163 | USD | 1d | |||||||||
| IC Components Ltd. | SX03-0B00-00 | 2500 | USD | 2d |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Verical | LC709006V-TLM-E | 7000 | 221 | USD | |||||||||
| Win Source | WS-LC709006V-TLM-E | 3640 | 75 | USD | 31m | ||||||||
| Rochester Electronics | LC709006V-TLM-E | 14.000 | USD | 1d | |||||||||
| Fmall Co., Limited | LC709006V-TLM-E | 49.130 | USD | >1wk | |||||||||
| Worldway Electronics | LC709006V-TLM-E | 19.346 | 7 | Tape & Reel | USD | 5h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9574PW,112 | 4128 | USD | 1d | |||||||||
| UnikeyIC | PCA9574PW,112 | 3905 | 211 | Cut Tape | USD | 2d | |||||||
| Verical | PCA9574PW,112 | 4128 | 385 | USD | |||||||||
| Win Source | WS-PCA9574PW,112 | 7360 | 5 | USD | 31m | ||||||||
| Worldway Electronics | PCA9574PW,112 | 12.517 | 7 | Bulk | USD | 5h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9500D,118 | 1474 | USD | 1d | |||||||||
| UnikeyIC | PCA9500D,118 | 1394 | 138 | Cut Tape | USD | 2d | |||||||
| Verical | PCA9500D,118 | 474 | 271 | USD | |||||||||
| Worldway Electronics | PCA9500D,118 | 19.396 | 7 | Bulk | USD | 5h | |||||||
| Esaler Electronic | PCA9500D,118 | 216 | USD | 3d |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9674APW,112 | 452 | USD | 1d | |||||||||
| UnikeyIC | PCA9674APW,112 | 427 | 178 | Tube | USD | 2d | |||||||
| Verical | PCA9674APW,112 | 452 | 325 | USD | |||||||||
| Worldway Electronics | PCA9674APW,112 | 7813 | 7 | Tube | USD | 5h | |||||||
| Esaler Electronic | PCA9674APW,112 | 260 | USD | 3d |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avnet | IMQ82C55AZ96 | 0 | 500 | 1d | |||||||||
| Win Source | WS-IMQ82C55AZ96 | 2360 | 2 | USD | 31m | ||||||||
| ICPartonline | IMQ82C55AZ96 | 28.137 | USD | >1wk | |||||||||
| Antdic Electronics | IMQ82C55AZ96 | 26.108 | USD | 6d | |||||||||
| Worldway Electronics | IMQ82C55AZ96 | 13.751 | 7 | Tape & Reel | USD | 5h |


