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
16-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 24-SSOP -40 to 85
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCF8575DB | 10.735 | USD | 2h | |||||||||
| Verical | PCF8575DB | 179 | 136 | USD | |||||||||
| DigiKey | PCF8575DB-ND | 102 | 1 | Tube | USD | ||||||||
| Mouser | 595-PCF8575DB | 82 | 1 | Tube | USD | ||||||||
| Win Source | WS-PCF8575DB | 6657 | 16 | USD | 2h |
5-channel bidirectional 3- to 3.6-V expandable 400-kHz I2C/SMBus buffer/hub 20-SSOP -40 to 85
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9518DBR | 99.830 | USD | 2h | |||||||||
| Verical | PCA9518DBR | 2000 | 160 | USD | |||||||||
| Win Source | WS-PCA9518DBR | 3300 | 23 | USD | 2h | ||||||||
| Worldway Electronics | PCA9518DBR | 28.376 | 7 | Tape & Reel | USD | 2h | |||||||
| ICPartonline | PCA9518DBR | 16.779 | USD | >1wk |
400kHz SMBus TSSOP-16 I/O Expanders ROHS
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avnet | PI4IOE5V9538LE | 10.944 | 96 | USD | 4h | ||||||||
| DigiKey | PI4IOE5V9538LEDI-ND | 81 | 1 | Tube | USD | ||||||||
| Arrow Electronics | PI4IOE5V9538LE | 0 | 96 | USD | |||||||||
| Win Source | WS-PI4IOE5V9538LE | 2850 | 65 | USD | 2h | ||||||||
| ICPartonline | PI4IOE5V9538LE | 18.732 | USD | >1wk |
I2C/SMBus Interface 100kHz/400kHz 5.5V 16-Pin TVSOP T/R
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9554ADGVR | 12.700 | USD | 2h | |||||||||
| Verical | PCA9554ADGVR | 6000 | 216 | USD | |||||||||
| Mouser | 595-PCA9554ADGVR | 69 | 1 | Tape & Reel | USD | ||||||||
| Win Source | WS-PCA9554ADGVR | 12.000 | 35 | USD | 2h | ||||||||
| Worldway Electronics | PCA9554ADGVR | 27.478 | 7 | Tape & Reel | USD | 2h |
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 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9557PWT | 53.148 | USD | 2h | |||||||||
| Verical | PCA9557PWT | 14.992 | 207 | USD | |||||||||
| DigiKey | 296-PCA9557PWTCT-ND | 167 | 1 | Cut Tape | USD | ||||||||
| Mouser | 595-PCA9557PWT | 480 | 1 | Tape & Reel | USD | ||||||||
| Weyland Electronics Group Pte. Ltd. | PCA9557PWT | 6000 | 1 | Tape & Reel | USD | 2h |
Tube Active I2C ROHS3Compliant io expander 2.3V~5.5V 400kHz -40C~85C
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avnet | PI4IOE5V9554LE | 4608 | 96 | USD | 4h | ||||||||
| DigiKey | PI4IOE5V9554LEDI-ND | 70 | 1 | Tube | USD | ||||||||
| Arrow Electronics | PI4IOE5V9554LE | 0 | 96 | USD | |||||||||
| Mouser | 729-PI4IOE5V9554LE | 111 | 1 | Tube | USD | ||||||||
| Win Source | WS-PI4IOE5V9554LE | 2330 | 30 | USD | 2h |
I/O Expander, 8 bit, I2C, SMBus, 2.3 V, 5.5 V, SOIC, 16 Pins
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9554AD,112 | 4942 | USD | 2h | |||||||||
| UnikeyIC | PCA9554AD,112 | 4720 | 188 | Tube | USD | 1h | |||||||
| Verical | PCA9554AD,112 | 807 | 345 | USD | |||||||||
| Worldway Electronics | PCA9554AD,112 | 15.295 | 7 | Tube | USD | 2h | |||||||
| NetSource Technology | PCA9554AD,112 | 678 | USD | 11h |
8-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt 20-TVSOP -40 to 85
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DigiKey | 296-17437-1-ND | 4 | 1 | Cut Tape | USD | ||||||||
| Arrow Electronics | PCF8574ADGVR | 0 | 2K | USD | |||||||||
| Mouser | 595-PCF8574ADGVR | 1622 | 1 | Tape & Reel | USD | ||||||||
| Component Stockers USA | PCF8574ADGVR | 853 | USD | >1wk | |||||||||
| Weyland Electronics Group Pte. Ltd. | PCF8574ADGVR | 292 | 1 | Tape & Reel | USD | 2h |
Mobile I/O Companion Supporting Key Scan Serial Interface 36-Pin CSBGA T/R
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | LM8323JGR8AXM/NOPB | 11.950 | USD | 2h | |||||||||
| Verical | LM8323JGR8AXM/NOPB | 2000 | 85 | USD | |||||||||
| Component Stockers USA | LM8323JGR8AXM/NOPB | 2647 | USD | >1wk | |||||||||
| Win Source | WS-LM8323JGR8AXM/NOPB | 60 | 15 | USD | 2h | ||||||||
| Worldway Electronics | LM8323JGR8AXM/NOPB | 24.692 | 7 | Tape & Reel | USD | 2h |
5-channel bidirectional 3- to 3.6-V expandable 400-kHz I2C/SMBus buffer/hub 20-SSOP -40 to 85
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9518DBQR | 9353 | USD | 2h | |||||||||
| Verical | PCA9518DBQR | 2100 | 160 | USD | |||||||||
| Arrow Electronics | PCA9518DBQR | 0 | 2500 | USD | |||||||||
| Win Source | WS-PCA9518DBQR | 2250 | 40 | USD | 2h | ||||||||
| Worldway Electronics | PCA9518DBQR | 27.371 | 7 | Tape & Reel | USD | 2h |