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 | MCP23S17-E/SO | 1516 | 1 | USD | |||||||||
| Future Electronics | MCP23S17-E/SO | 82 | 20 | Tube | USD | ||||||||
| Avnet | MCP23S17-E/SO | 15 | 27 | USD | 1d | ||||||||
| Onlinecomponents.com | MCP23S17-E/SO | 3067 | 27 | Bulk | USD | ||||||||
| Master Electronics | MCP23S17-E/SO | 3067 | 27 | USD |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MCP23008T-E/SS | 1600 | 1 | Cut Tape | USD | ||||||||
| Avnet | MCP23008T-E/SS | 1600 | 1600 | USD | 1d | ||||||||
| Onlinecomponents.com | MCP23008T-E/SS | 3600 | 250 | Bulk | USD | ||||||||
| Master Electronics | MCP23008T-E/SS | 3600 | 250 | USD | |||||||||
| Arrow Electronics | MCP23008T-E/SS | 1717 | 1 | USD |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MCP23S08-E/SS | 2763 | 1 | USD | |||||||||
| Onlinecomponents.com | MCP23S08-E/SS | 1861 | 67 | Bulk | USD | ||||||||
| Master Electronics | MCP23S08-E/SS | 1861 | 67 | USD | |||||||||
| Arrow Electronics | MCP23S08-E/SS | 380 | 1 | USD | |||||||||
| DigiKey | MCP23S08-E/SS-ND | 6120 | 1 | Tube | USD |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MCP23S17T-E/SS | 29.448 | 1 | USD | |||||||||
| Onlinecomponents.com | MCP23S17T-E/SS | 7605 | 250 | Bulk | USD | ||||||||
| Master Electronics | MCP23S17T-E/SS | 7605 | 250 | USD | |||||||||
| Arrow Electronics | MCP23S17T-E/SS | 4945 | 1 | USD | |||||||||
| DigiKey | MCP23S17T-E/SSCT-ND | 24.427 | 1 | Cut Tape | USD |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MCP23S17-E/SS | 1531 | 1 | USD | |||||||||
| Future Electronics | MCP23S17-E/SS | 657 | 15 | Tube | USD | ||||||||
| Avnet | MCP23S17-E/SS | 1301 | 1 | USD | 1d | ||||||||
| Onlinecomponents.com | MCP23S17-E/SS | 10.011 | 47 | Bulk | USD | ||||||||
| RS (Formerly Allied Electronics) | MCP23S17-E/SS | 2 | 1 | Bulk | USD | 13h |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MCP23008-E/SO | 1630 | 1 | USD | |||||||||
| Onlinecomponents.com | MCP23008-E/SO | 1174 | 42 | Bulk | USD | ||||||||
| Master Electronics | MCP23008-E/SO | 1174 | 42 | USD | |||||||||
| Arrow Electronics | MCP23008-E/SO | 199 | 1 | USD | |||||||||
| DigiKey | MCP23008-E/SO-ND | 9673 | 1 | Tube | USD |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MCP23S17-E/SP | 1284 | 1 | USD | |||||||||
| Avnet | 31K2951 | 1284 | 1 | USD | 1d | ||||||||
| Onlinecomponents.com | MCP23S17-E/SP | 1440 | 15 | Bulk | USD | ||||||||
| Master Electronics | MCP23S17-E/SP | 1440 | 15 | USD | |||||||||
| Arrow Electronics | MCP23S17-E/SP | 51 | 1 | USD |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MCP23017-E/ML | 1913 | 1 | USD | |||||||||
| Avnet | MCP23017-E/ML | 655 | 1 | USD | 1d | ||||||||
| Onlinecomponents.com | MCP23017-E/ML | 2170 | 61 | Bulk | USD | ||||||||
| Master Electronics | MCP23017-E/ML | 2170 | 61 | USD | |||||||||
| Arrow Electronics | MCP23017-E/ML | 311 | 1 | USD |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MCP23S08T-E/SS | 22 | 1 | Cut Tape | USD | ||||||||
| Avnet | MCP23S08T-E/SS | 1600 | 1600 | USD | 1d | ||||||||
| Onlinecomponents.com | MCP23S08T-E/SS | 3752 | 250 | Bulk | USD | ||||||||
| Master Electronics | MCP23S08T-E/SS | 3752 | 250 | USD | |||||||||
| DigiKey | MCP23S08T-E/SSCT-ND | 911 | 1 | Cut Tape | USD |
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | MCP23008-E/P | 2919 | 1 | USD | |||||||||
| Onlinecomponents.com | MCP23008-E/P | 2875 | 25 | Bulk | USD | ||||||||
| Master Electronics | MCP23008-E/P | 2875 | 25 | USD | |||||||||
| Arrow Electronics | MCP23008-E/P | 162 | 1 | USD | |||||||||
| DigiKey | MCP23008-E/P-ND | 3940 | 1 | Tube | USD |


