Remote 16-Bit I2C And SMBus I/O Expander With Interrupt Output

The PCF8575 provides general-purpose remote I/O expansion for most Microcontroller families via the I2C Interface serial Clock (SCL) and serial data (SDA). The device features a 16-bit quasi-bidirectional input/output (I/O) port (P07-P00, P17-P10), including latched outputs with high-current drive capability for directly driving LEDs Each quasi-bidirectional I/O CAN be used as an input or output without the use of a data-direction control signal. At power on, the I/Os are high. In this mode, only a current source (IOH) to VCC is active. An additional strong pullup to VCC (IOHT) allows fast-rising edges into heavily loaded outputs. This device turns on when an output is written high and is switched off by the negative edge of SCL. The I/Os should be high before being used as inputs. After power on, as all the I/Os are set high, all of them CAN be used as inputs. Any change in setting of the I/Os as either input or outputs CAN be done with the write mode. If a high is applied externally to an I/O that has been written earlier to low, a large current (IOL) will flow to GND. By Texas Instruments
Part Manufacturer Description Datasheet Samples
PCF8575CPW Texas Instruments Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-TSSOP -40 to 85
PCF8575CRGERG4 Texas Instruments Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-VQFN -40 to 85
PCF8575CDGVR Texas Instruments Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-TVSOP -40 to 85
PCF8575CDBQRG4 Texas Instruments Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-SSOP -40 to 85
PCF8575CDWG4 Texas Instruments Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-SOIC -40 to 85
PCF8575CDWRG4 Texas Instruments Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-SOIC -40 to 85
PCF8575CDBE4 Texas Instruments Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-SSOP -40 to 85
PCF8575CDBR Texas Instruments Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-SSOP -40 to 85
PCF8575CRGER Texas Instruments Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-VQFN -40 to 85
PCF8575CDWE4 Texas Instruments Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-SOIC -40 to 85
PCF8575 's PackagesPCF8575 's pdf datasheet
PCF8575DB SSOP
PCF8575DBQR SSOP
PCF8575DBQRE4 SSOP
PCF8575DBQRG4 SSOP
PCF8575DBR SSOP
PCF8575DBRE4 SSOP
PCF8575DBRG4 SSOP
PCF8575DGVR TVSOP
PCF8575DGVRE4 TVSOP
PCF8575DW SOIC
PCF8575DWG4 SOIC
PCF8575DWR SOIC
PCF8575DWRG4 SOIC
PCF8575PW TSSOP
PCF8575PWE4 TSSOP
PCF8575PWG4 TSSOP
PCF8575PWR TSSOP
PCF8575PWRE4 TSSOP
PCF8575PWRG4 TSSOP
PCF8575RGER QFN
PCF8575RGERG4 QFN
PCF8575RHLR QFN

PCF8575 pdf datasheet download


PCF8575 Pinout, Pinouts
PCF8575 pinout,Pin out
This is one package pinout of PCF8575,If you need more pinouts please download PCF8575's pdf datasheet.

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