I/O Expanders
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.
Esplora Espansori di I/O
Risultati: 1981
Distributori autorizzati
Distributori di stock non autorizzati
Low-Voltage Translating 16-bit I2C-Bus/SMBus I/O Expander 24-Pin VFBGA T/R
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | PCA6416AEVJ | 5397 | 1 | Cut Tape | USD | ||||||||
| Rochester Electronics | PCA6416AEVJ | 11.390 | USD | 19h | |||||||||
| UnikeyIC | PCA6416AEVJ | 5582 | 1 | Tape & Reel | USD | 2h | |||||||
| DigiKey | 568-9934-1-ND | 3841 | 1 | Cut Tape | USD | ||||||||
| Avnet | PCA6416AEVJ | 0 | 6K | USD | 22h |
PCA9539R Series 5.5 V 400 kHz 200 uA 16-Bit I/O Surface Mount I2C-Bus - TSSOP-24
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UnikeyIC | PCA9539RPW,118 | 2400 | 1 | Tape & Reel | USD | 2h | |||||||
| DigiKey | 568-PCA9539RPW,118CT-ND | 1413 | 1 | Cut Tape | USD | ||||||||
| Arrow Electronics | PCA9539RPW,118 | 1428 | 1 | USD | |||||||||
| Verical | PCA9539RPW,118 | 1428 | 21 | USD | |||||||||
| Flip Electronics | PCA9539RPW,118 | 5000 | 2d |
PCA9575 Series 16-bit I2C-Bus &SMBus Level Translating Low Voltage GPIO-HWQFN-24
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UnikeyIC | PCA9575HF,118 | 6000 | 6K | Cut Tape | USD | 2h | |||||||
| Newark | PCA9575HF,118 | 0 | 1 | Cut Tape | USD | ||||||||
| Avnet | PCA9575HF,118 | 0 | 6K | USD | 22h | ||||||||
| Future Electronics | PCA9575HF,118 | 0 | 6K | Tape & Reel | USD | ||||||||
| Arrow Electronics | PCA9575HF,118 | 0 | 1 | USD |
8-bit I2C-bus and SMBus 1.65 to 5.5 V 400 kHz POR I/O Expander - HVQFN-16
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UnikeyIC | PCA9554BBSHP | 6000 | 6K | Tape & Reel | USD | 2h | |||||||
| DigiKey | 568-9939-1-ND | 3740 | 1 | Cut Tape | USD | ||||||||
| Arrow Electronics | PCA9554BBSHP | 12.000 | 6K | USD | |||||||||
| Verical | PCA9554BBSHP | 6000 | 6K | USD | |||||||||
| Flip Electronics | PCA9554BBSHP | 38 | 2d |
1¦ÌA SPI Serial 8(Input Only) 2.5V 5.5V 5MHz TSSOP-16 , 950¦Ìm
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9702PW,118 | 36.720 | USD | 19h | |||||||||
| UnikeyIC | PCA9702PW,118 | 1255 | 1 | Tape & Reel | USD | 2h | |||||||
| Verical | PCA9702PW,118 | 1420 | 3 | USD | |||||||||
| Arrow Electronics | PCA9702PW,118 | 1420 | 1 | USD | |||||||||
| Newark | PCA9702PW,118 | 0 | 2500 | Tape & Reel | USD |
I2C/SMBus Interface 100kHz/400kHz 5.5V Automotive AEC-Q100 24-Pin TSSOP T/R
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | PCA9539PW/Q900,118 | 2027 | 1 | Cut Tape | USD | ||||||||
| UnikeyIC | PCA9539PW/Q900,118 | 255 | 1 | Tape & Reel | USD | 2h | |||||||
| DigiKey | 568-PCA9539PW/Q900,118CT-ND | 27 | 1 | Cut Tape | USD | ||||||||
| Avnet | PCA9539PW/Q900,118 | 0 | 2500 | USD | 22h | ||||||||
| Future Electronics | PCA9539PW/Q900,118 | 0 | 2500 | Tape & Reel | USD |
Low-Voltage 8-Bit I2C-Bus and SMBus Low Power I/O Port 16-Pin HVQFN T/R
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9554CBSHP | 11.290 | USD | 19h | |||||||||
| UnikeyIC | PCA9554CBSHP | 6000 | 6K | Tape & Reel | USD | 2h | |||||||
| DigiKey | 568-9941-1-ND | 6379 | 1 | Cut Tape | USD | ||||||||
| Verical | PCA9554CBSHP | 5500 | 354 | USD | |||||||||
| Newark | PCA9554CBSHP | 0 | 18K | Tape & Reel |
PCA Series 5.5 V ±100 mA Remote 16 bit I/O Expander Fm+I2C bus - TSSOP-24
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Verical | PCA9675PW,118 | 266 | 2 | USD | |||||||||
| Arrow Electronics | PCA9675PW,118 | 266 | 1 | USD | |||||||||
| Newark | PCA9675PW,118 | 0 | 2500 | Tape & Reel | USD | ||||||||
| Rochester Electronics | PCA9675PW,118 | 0 | USD | 19h | |||||||||
| Avnet | PCA9675PW,118 | 0 | 2500 | USD | 22h |
PCAL9535A Series 16-bit I²C-bus I/O Port with Interrupt and Agile I/O- TSSOP-24
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Future Electronics | PCAL9535APW,118 | 5000 | 2500 | Tape & Reel | USD | ||||||||
| UnikeyIC | PCAL9535APW,118 | 2500 | 2500 | Tape & Reel | USD | 2h | |||||||
| DigiKey | 568-9923-1-ND | 843 | 1 | Cut Tape | USD | ||||||||
| Arrow Electronics | PCAL9535APW,118 | 2231 | 1 | USD | |||||||||
| Verical | PCAL9535APW,118 | 2231 | 2 | USD |
I/O Expander, 16 Bit, 16 I/Os, I2C, SMBus, 1.65 V to 5.5 V, 24 Pins, HWQFN
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCAL9555AHF,128 | 5348 | USD | 19h | |||||||||
| UnikeyIC | PCAL9555AHF,128 | 6000 | 6K | Cut Tape | USD | 2h | |||||||
| DigiKey | 568-9952-1-ND | 2214 | 1 | Cut Tape | USD | ||||||||
| Verical | PCAL9555AHF,128 | 6666 | 2 | USD | |||||||||
| Arrow Electronics | PCAL9555AHF,128 | 6666 | 1 | USD |