Remote 8-Bit I/O Expander For I2C-Bus

This 8-bit input/output (I/O) expander for the two-line bidirectional bus (I2C) is designed for 2.5-V to 6-V VCC operation. The PCF8574 provides general-purpose remote I/O expansion for most Microcontroller families via the I2C Interface [serial Clock (SCL), serial data (SDA)]. By Texas Instruments
PCF8574 's PackagesPCF8574 's pdf datasheet
PCF8574DGVR TVSOP
PCF8574DGVRE4 TVSOP
PCF8574DGVRG4 TVSOP
PCF8574DW SOIC
PCF8574DWE4 SOIC
PCF8574DWG4 SOIC
PCF8574DWR SOIC
PCF8574DWRE4 SOIC
PCF8574DWRG4 SOIC
PCF8574N PDIP
PCF8574NE4 PDIP
PCF8574PW TSSOP
PCF8574PWE4 TSSOP
PCF8574PWG4 TSSOP
PCF8574PWR TSSOP
PCF8574PWRE4 TSSOP
PCF8574RGTR QFN
PCF8574RGTRG4 QFN
PCF8574RGYR QFN
PCF8574RGYRG4 QFN

PCF8574 pdf datasheet download
PCF8574 Pinout, Pinouts
PCF8574 pinout,Pin out
This is one package pinout of PCF8574,If you need more pinouts please download PCF8574's pdf datasheet.

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PCF8574 Pb-Free PCF8574 Cross Reference PCF8574 Schematic PCF8574 Distributor
PCF8574 Application Notes PCF8574 RoHS PCF8574 Circuits PCF8574 footprint
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