| Distributor | SKU | Stock | Cost | |
|---|---|---|---|---|
| DigiKey | PCF8574ADWRG4-ND | 0 | $1.36 | Buy |
| Mouser Electronics | 595-PCF8574ADWR | 6432 | $1.17 | Buy |
| Arrow Asia | PCF8574ADWR | 28000 | $0.50 | Buy |
| Win Source | PCF8574ADWR | 138076 | $1.20 | Buy |
| Verical Marketplace | PCF8574ADWR | 200 | $0.54 | Buy |
| Quarktwin Electronic Components | PCF8574ADWR | 31478 | $1.76 | Buy |
| Arrow North American Components | PCF8574ADWR | 0 | $0.47 | Buy |
| Quest Components | PCF8574ADWR | 8 | $1.98 | Buy |
| Newark | PCF8574ADWR | 615 | $2.31 | Buy |
| AVNET Asia Pacific | PCF8574ADWR | $0.53 | Buy | |
| Freelance | PCF8574ADWR | 10 | Buy | |
| Farnell | PCF8574ADWR | 1337 | * $0.74 | Buy |
| element14 APAC | PCF8574ADWR | 619 | * $0.86 | Buy |
| Texas Instruments | PCF8574ADWR | 4024 | $0.99 | Buy |
| AVNET Europe | PCF8574ADWR | 2044 | * $0.63 | Buy |
| AVNET Express | PCF8574ADWR | $0.60 | Buy |
PCF8574A Remote 8-Bit I/O Expander for I2C-Bus
| Title | Manufacturer | Published |
|---|---|---|
| Improving System Interrupt Management Using the PCF8574 and PCF8574A I/O Expande | Texas Instruments | 07/27/2001 |
| 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 |