| Distributor | SKU | Stock | Cost | |
|---|---|---|---|---|
| DigiKey | 296-33524-5-ND | 0 | $1.36 | Buy |
| Mouser Electronics | 595-PCF8574APW | 5754 | $2.49 | Buy |
| Texas Instruments | PCF8574APW | 10931 | $1.68 | Buy |
| Quest Components | PCF8574APW | 80 | $2.75 | Buy |
| Quarktwin Electronic Components | PCF8574APW | 17202 | $2.11 | Buy |
| Win Source | PCF8574APW | 15000 | Buy | |
| Arrow North American Components | PCF8574APW | 0 | $1.02 | Buy |
| RS Components | PCF8574APW | $2.40 | Buy | |
| Farnell | PCF8574APW | 733 | * $2.63 | Buy |
| Newark | PCF8574APW | 16 | $2.84 | Buy |
| element14 APAC | PCF8574APW | 1147 | * $2.74 | Buy |
| AVNET Europe | PCF8574APW | 143 | * $0.96 | Buy |
| AVNET Express | PCF8574APW | 98 | $0.82 | Buy |
| Verical Marketplace | PCF8574APW | 7280 | $0.00 | Buy |
I/O Expander 20-Pin TSSOP
| 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 |