| Distributor | SKU | Stock | Cost | |
|---|---|---|---|---|
| DigiKey | 296-20955-1-ND | 1986 | $2.72 | Buy |
| Mouser Electronics | 595-PCA9539DWR | 1185 | $2.37 | Buy |
| Verical Marketplace | PCA9539DWR | 10000 | $0.78 | Buy |
| Freelance | PCA9539DWR | 2000 | Buy | |
| Quarktwin Electronic Components | PCA9539DWR | 16725 | $2.13 | Buy |
| Arrow North American Components | PCA9539DWR | 0 | $1.14 | Buy |
| Win Source | PCA9539DWR | 20853 | $1.52 | Buy |
| AVNET Express | PCA9539DWR | 26487 | $0.93 | Buy |
| Farnell | PCA9539DWR | 366 | * $1.92 | Buy |
| element14 APAC | PCA9539DWR | 366 | * $2.78 | Buy |
| AVNET Europe | PCA9539DWR | * $1.32 | Buy | |
| Newark | PCA9539DWR | 27 | $1.13 | Buy |
| Texas Instruments | PCA9539DWR | 200 | $1.70 | Buy |
PCA9539 Remote 16-Bit I2C And SMBus, Low-Power I/O Expander With Interrupt Output, Reset & Config. Registers
| Title | Manufacturer | Published |
|---|---|---|
| Programming Fun Lights With TI's TCA6507 | Texas Instruments | 11/30/2007 |
| Maximum Clock Frequency of I2C Bus Using Repeaters | Texas Instruments | 05/15/2015 |
| I2C Bus Pull-Up Resistor Calculation | Texas Instruments | 02/13/2015 |
| Understanding the I2C Bus | Texas Instruments | 06/30/2015 |