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
Tape & Reel (TR) Active I2C 2016 io expander 2.3V~5.5V 400kHz -40C~85C
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DigiKey | PI4IOE5V9539ZDEXDICT-ND | 3339 | 1 | Cut Tape | USD | ||||||||
| Newark | PI4IOE5V9539ZDEX | 0 | 1 | Cut Tape | USD | ||||||||
| Avnet | PI4IOE5V9539ZDEX | 0 | 3500 | USD | 3h | ||||||||
| Arrow Electronics | PI4IOE5V9539ZDEX | 0 | 3500 | USD | |||||||||
| Mouser | 729-PI4IOE5V9539ZDEX | 232 | 1 | Tape & Reel | USD |
CMS82C55A Series 5.5 V CMOS Programmable Peripheral Interface - PLCC-44
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Renesas | CMS82C55AZ | 1031 | 1 | Tube | USD | 23h | |||||||
| Avnet | CMS82C55AZ | 6032 | 1040 | 3h | |||||||||
| DigiKey | 20-CMS82C55AZ-ND | 1031 | 1 | Tube | USD | ||||||||
| Future Electronics | CMS82C55AZ | 0 | 260 | Tube | USD | ||||||||
| Newark | CMS82C55AZ | 0 | 1040 |
5-channel bidirectional 3- to 3.6-V expandable 400-kHz I2C/SMBus buffer/hub 20-SOIC -40 to 85
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9518DW | 20.503 | USD | 1h | |||||||||
| Verical | PCA9518DW | 225 | 140 | USD | |||||||||
| DigiKey | 296-33489-5-ND | 303 | 1 | Tube | USD | ||||||||
| Mouser | 595-PCA9518DW | 136 | 1 | Tube | USD | ||||||||
| Worldway Electronics | PCA9518DW | 29.260 | 7 | Bulk | USD | 6h |
16-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers 24-SSOP -40 to 85
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9535DBQR | 1368 | USD | 1h | |||||||||
| Verical | PCA9535DBQR | 1035 | 143 | USD | |||||||||
| Mouser | 595-PCA9535DBQR | 770 | 1 | Tape & Reel | USD | ||||||||
| Win Source | WS-PCA9535DBQR | 8970 | 21 | USD | 2h | ||||||||
| Worldway Electronics | PCA9535DBQR | 9118 | 7 | Tape & Reel | USD | 6h |
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 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCF8574DGVR | 9402 | USD | 1h | |||||||||
| Verical | PCF8574DGVR | 3432 | 180 | USD | |||||||||
| Mouser | 595-PCF8574DGVR | 95 | 1 | Tape & Reel | USD | ||||||||
| Win Source | WS-PCF8574DGVR | 90 | 30 | USD | 2h | ||||||||
| Worldway Electronics | PCF8574DGVR | 14.205 | 7 | Tape & Reel | USD | 6h |
Remote 16-BIT I2C And Smbus I/o Expander With Interrupt Output And Configuration Registers
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9555DGVR | 1957 | USD | 1h | |||||||||
| Verical | PCA9555DGVR | 426 | 172 | USD | |||||||||
| Win Source | WS-PCA9555DGVR | 7900 | 13 | USD | 2h | ||||||||
| Worldway Electronics | PCA9555DGVR | 6445 | 7 | Tape & Reel | USD | 6h | |||||||
| Utmel Electronic | 2502-PCA9555DGVR | 1263 | USD | 11h |
PCA9674 Series 5.5 V ±100 mA Remote 8 bit I/O Expander Fm+I2C bus - TSSOP-16
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Newark | PCA9674APW,118 | 0 | 2500 | Tape & Reel | USD | ||||||||
| Avnet | PCA9674APW,118 | 0 | 2500 | USD | 3h | ||||||||
| Arrow Electronics | PCA9674APW,118 | 0 | 2500 | USD | |||||||||
| Farnell | PCA9674APW,118 | 156 | 1 | Cut Tape | USD* | 1h | |||||||
| Component Stockers USA | PCA9674APW,118 | 78.572 | USD | >1wk |
PCA9535ECDWR2G, 16-CHANNEL 16 Bit I/o Expander 1MHZ, I2C, 24-PIN SOIC
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9535ECDWR2G | 2727 | USD | 1h | |||||||||
| Verical | PCA9535ECDWR2G | 1566 | 230 | USD | |||||||||
| Flip Electronics | PCA9535ECDWR2G | 1000 | >1wk | ||||||||||
| Avnet | PCA9535ECDWR2G | 0 | 820 | USD | 1d | ||||||||
| RS (Formerly Allied Electronics) | PCA9535ECDWR2G | 0 | 10 | Bulk | USD | 14h |
TEXAS INSTRUMENTS TCA9538DBR I/O Expander, 8bit, 400 kHz, I2C, SMBus, 1.65 V, 5.5 V, SSOP
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | TCA9538DBR | 15.950 | USD | 1h | |||||||||
| Verical | TCA9538DBR | 513 | 7 | USD | |||||||||
| Arrow Electronics | TCA9538DBR | 513 | 1 | USD | |||||||||
| DigiKey | 296-43160-1-ND | 1677 | 1 | Cut Tape | USD | ||||||||
| Mouser | 595-TCA9538DBR | 1409 | 1 | Tape & Reel | USD |
8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers 16-TVSOP -40 to 85
| Distributor | SKU | Min | Pkg | Bulk Pricing | Updated | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rochester Electronics | PCA9534DGVR | 304 | USD | 1h | |||||||||
| Verical | PCA9534DGVR | 304 | 166 | USD | |||||||||
| Arrow Electronics | PCA9534DGVR | 0 | 2K | USD | |||||||||
| Mouser | 595-PCA9534DGVR | 305 | 1 | Tape & Reel | USD | ||||||||
| Win Source | WS-PCA9534DGVR | 10.184 | 25 | USD | 2h |
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