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
I2C/SMBus Interface 100kHz/400kHz/1000kHz 3.6V 25-Pin DSBGA T/R
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 296-34930-1-ND | 666 | 1 | Cut Tape | USD | ||||||||
| Mouser | 595-TCA6418EYFPR | 2748 | 1 | Tape & Reel | USD | ||||||||
| Weyland Electronics Group Pte. Ltd. | TCA6418EYFPR | 3000 | 1 | Tape & Reel | USD | 1d | |||||||
| Win Source | WS-TCA6418EYFPR | 75.032 | 21 | USD | 19h | ||||||||
| Worldway Electronics | TCA6418EYFPR | 28.928 | 7 | Tape & Reel | USD | 18h |
I2C Interface 100kHz/400kHz 5.5V 16-Pin UQFN T/R
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Component Stockers USA | TCA6408ARSVR | 54.356 | USD | >1wk | |||||||||
| Weyland Electronics Group Pte. Ltd. | TCA6408ARSVR | 13.961 | 1 | Tape & Reel | USD | 1d | |||||||
| Win Source | WS-TCA6408ARSVR | 6980 | 8 | USD | 19h | ||||||||
| Worldway Electronics | TCA6408ARSVR | 17.511 | 7 | Tape & Reel | USD | 18h | |||||||
| ICPartonline | TCA6408ARSVR | 25.283 | USD | >1wk |
8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with reset & config registers 16-TSSOP -40 to 85
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 296-20978-1-ND | 1513 | 1 | Cut Tape | USD | ||||||||
| Mouser | 595-PCA9557PWR | 5093 | 1 | Tape & Reel | USD | ||||||||
| Weyland Electronics Group Pte. Ltd. | PCA9557PWR | 10.000 | 1 | Tape & Reel | USD | 1d | |||||||
| Win Source | WS-PCA9557PWR | 10.850 | 75 | USD | 19h | ||||||||
| Worldway Electronics | PCA9557PWR | 25.687 | 7 | Tape & Reel | USD | 18h |
IC I/O EXPANDER I2C 8B 16TSSOP / Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weyland Electronics Group Pte. Ltd. | TCA9538PWR | 909 | 1 | Tape & Reel | USD | 1d | |||||||
| Win Source | WS-TCA9538PWR | 4925 | 40 | USD | 19h | ||||||||
| Worldway Electronics | TCA9538PWR | 17.070 | 7 | Tape & Reel | USD | 18h | |||||||
| ICPartonline | TCA9538PWR | 36.192 | USD | >1wk | |||||||||
| Classic Components | TCA9538PWR | 687 | 13h |
I2C/SMBus Interface 100kHz/400kHz 5.5V 24-Pin SSOP T/R / IC I/O EXPANDER I2C 16B 24SSOP
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mouser | 595-PCA9555DBR | 95 | 1 | Tape & Reel | USD | ||||||||
| Weyland Electronics Group Pte. Ltd. | PCA9555DBR | 1233 | 1 | Tape & Reel | USD | 1d | |||||||
| Win Source | WS-PCA9555DBR | 76.330 | 55 | USD | 19h | ||||||||
| Worldway Electronics | PCA9555DBR | 15.270 | 7 | Tape & Reel | USD | 18h | |||||||
| ICPartonline | PCA9555DBR | 8585 | USD | >1wk |
I2C/SMBus Interface 100kHz/400kHz 5.5V 16-Pin VQFN EP T/R
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 296-22709-1-ND | 2712 | 1 | Cut Tape | USD | ||||||||
| Mouser | 595-PCA9554ARGVR | 587 | 1 | Tape & Reel | USD | ||||||||
| Component Stockers USA | PCA9554ARGVR | 11.295 | USD | >1wk | |||||||||
| Win Source | WS-PCA9554ARGVR | 103.758 | 55 | USD | 19h | ||||||||
| Worldway Electronics | PCA9554ARGVR | 17.794 | 7 | Tape & Reel | USD | 18h |
8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers 16-SOIC -40 to 85
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 296-21763-1-ND | 453 | 1 | Cut Tape | USD | ||||||||
| Mouser | 595-PCA9534DWR | 1845 | 1 | Tape & Reel | USD | ||||||||
| Win Source | WS-PCA9534DWR | 8000 | 26 | USD | 19h | ||||||||
| Worldway Electronics | PCA9534DWR | 10.595 | 7 | Tape & Reel | USD | 18h | |||||||
| GreenTree Electronics | PCA9534DWR | 2000 | 4d |
8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with reset & config registers 16-SOIC -40 to 85
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 296-20977-1-ND | 298 | 1 | Cut Tape | USD | ||||||||
| Mouser | 595-PCA9557DR | 1102 | 1 | Tape & Reel | USD | ||||||||
| Weyland Electronics Group Pte. Ltd. | PCA9557DR | 500 | 1 | Tape & Reel | USD | 1d | |||||||
| Win Source | WS-PCA9557DR | 18.300 | 40 | USD | 19h | ||||||||
| Worldway Electronics | PCA9557DR | 13.004 | 7 | Tape & Reel | USD | 18h |
REMOTE 16-BIT I2C AND SMBUS, LOW / I/O Expander 16 I²C, SMBus 400 kHz 24-VQFN (4x4)
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mouser | 595-TCA9535MRGER | 508 | 1 | Tape & Reel | USD | ||||||||
| Win Source | WS-TCA9535MRGER | 25.000 | 18 | USD | 19h | ||||||||
| Worldway Electronics | TCA9535MRGER | 15.151 | 7 | Tape & Reel | USD | 18h | |||||||
| ICPartonline | TCA9535MRGER | 12.689 | USD | >1wk | |||||||||
| GreenTree Electronics | TCA9535MRGER | 2299 | 4d |
8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers 16-SSOP -40 to 85
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 296-51631-1-ND | 878 | 1 | Cut Tape | USD | ||||||||
| Mouser | 595-TCA9554DBR | 237 | 1 | Tape & Reel | USD | ||||||||
| Weyland Electronics Group Pte. Ltd. | TCA9554DBR | 7426 | 1 | Tape & Reel | USD | 1d | |||||||
| Win Source | WS-TCA9554DBR | 5750 | 40 | USD | 19h | ||||||||
| Worldway Electronics | TCA9554DBR | 27.581 | 7 | Tape & Reel | USD | 18h |