Expandable Five-Channel I2C Hub

The PCA9518 is an expandable five-channel bidirectional Buffer for I2C and SMBus applications. The I2C protocol requires a maximum bus capacitance of 400 pF, which is derived from the number of devices on the I2C bus and the bus length. The PCA9518 overcomes this restriction by separating and buffering the I2C data (SDA) and Clock (SCL) lines into multiple groups of 400-pF segments. Any segment-to-segment transition sees only one repeater delay. Each PCA9518 CAN communicate with other PCA9518 hubs through a 4-wire inter-hub expansion bus. Using multiple PCA9518 parts, any width hub (in multiples of five) CAN be implemented using the expansion pins, with only one repeater delay and no functional degradation of the system performance. By Texas Instruments
Part Manufacturer Description Datasheet Samples
PCA9518DBR Texas Instruments Expandable Five-Channel I2C Hub 20-SSOP -40 to 85
PCA9518DWRG4 Texas Instruments Expandable Five-Channel I2C Hub 20-SOIC -40 to 85
PCA9518DBRG4 Texas Instruments Expandable Five-Channel I2C Hub 20-SSOP -40 to 85
PCA9518PW Texas Instruments Expandable Five-Channel I2C Hub 20-TSSOP -40 to 85
PCA9518DBQR Texas Instruments Expandable Five-Channel I2C Hub 20-SSOP -40 to 85
PCA9518DWT Texas Instruments Expandable Five-Channel I2C Hub 20-SOIC -40 to 85
PCA9518DBTG4 Texas Instruments Expandable Five-Channel I2C Hub 20-SSOP -40 to 85
PCA9518DW Texas Instruments Expandable Five-Channel I2C Hub 20-SOIC -40 to 85
PCA9518DWTG4 Texas Instruments Expandable Five-Channel I2C Hub 20-SOIC -40 to 85
PCA9518DBQRG4 Texas Instruments Expandable Five-Channel I2C Hub 20-SSOP -40 to 85
PCA9518 's PackagesPCA9518 's pdf datasheet
PCA9518DBQR SSOP
PCA9518DBQRG4 SSOP
PCA9518DBR SSOP
PCA9518DBRG4 SSOP
PCA9518DBT SSOP
PCA9518DBTG4 SSOP
PCA9518DW SOIC
PCA9518DWG4 SOIC
PCA9518DWR SOIC
PCA9518DWRG4 SOIC
PCA9518DWT SOIC
PCA9518DWTG4 SOIC
PCA9518PW TSSOP
PCA9518PWR TSSOP
PCA9518PWT TSSOP

PCA9518 pdf datasheet download


PCA9518 Pinout, Pinouts
PCA9518 pinout,Pin out
This is one package pinout of PCA9518,If you need more pinouts please download PCA9518's pdf datasheet.

PCA9518 Application circuits
PCA9518 circuits
This is one application circuit of PCA9518,If you need more circuits,please download PCA9518's pdf datasheet.


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