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 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microchip | MCP23017-E/MLVAO | 0 | 1 | Tube | USD | 7h | |||||||
| Onlinecomponents.com | MCP23017-E/MLVAO | 0 | 1 | Bulk | |||||||||
| Win Source | WS-MCP23017-E/MLVAO | 11.740 | 45 | USD | 32m | ||||||||
| Worldway Electronics | MCP23017-E/MLVAO | 27.047 | 7 | Tube | USD | 5h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microchip | MCP23017T-E/SSVAO | 0 | 1 | Tape & Reel | USD | 7h | |||||||
| Onlinecomponents.com | MCP23017T-E/SSVAO | 0 | 1 | Bulk | |||||||||
| Win Source | WS-MCP23017T-E/SSVAO | 45.590 | 50 | USD | 32m | ||||||||
| Worldway Electronics | MCP23017T-E/SSVAO | 22.491 | 7 | Tape & Reel | USD | 5h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microchip | MCP23017T-E/MLVAO | 1600 | 1 | Tape & Reel | USD | 7h | |||||||
| Onlinecomponents.com | MCP23017T-E/MLVAO | 0 | 1 | Bulk | |||||||||
| Win Source | WS-MCP23017T-E/MLVAO | 15.250 | 45 | USD | 32m | ||||||||
| Worldway Electronics | MCP23017T-E/MLVAO | 26.939 | 7 | Tape & Reel | USD | 5h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | CAT9554AYI-G | 518 | USD | 1d | |||||||||
| Verical | CAT9554AYI-G | 475 | 350 | USD | |||||||||
| Worldway Electronics | CAT9554AYI-G | 27.489 | 7 | Bulk | USD | 5h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 296-TCAL6416RADTORCT-ND | 2628 | 1 | Cut Tape | USD | ||||||||
| Mouser | 595-TCAL6416RADTOR | 2048 | 1 | Tape & Reel | USD | ||||||||
| Worldway Electronics | TCAL6416RADTOR | 29.267 | 7 | Tape & Reel | USD | 5h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 296-TCAL6416DGSRCT-ND | 3444 | 1 | Cut Tape | USD | ||||||||
| Mouser | 595-TCAL6416DGSR | 7450 | 1 | Tape & Reel | USD | ||||||||
| Worldway Electronics | TCAL6416DGSR | 11.278 | 7 | Tape & Reel | USD | 5h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 296-TCA9536AQDTMRQ1CT-ND | 11.922 | 1 | Cut Tape | USD | ||||||||
| Arrow Electronics | TCA9536AQDTMRQ1 | 0 | 12K | ||||||||||
| AERI | TCA9536AQDTMRQ1 | 10.729 | USD | 5h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microchip | MCP23009T-E/MGVAO | 0 | 1 | Tape & Reel | USD | 7h | |||||||
| Onlinecomponents.com | MCP23009T-E/MGVAO | 0 | 1 | Bulk | |||||||||
| Worldway Electronics | MCP23009T-E/MGVAO | 19.302 | 7 | USD | 5h |


