PCA9515A I2C-bus Repeater

The PCA9515 is a BiCMOS integrated circuit intended for application in I2C and SMBus systems. While retaining all the operating modes and features of the I2C system it permits extension of the I2C-bus by buffering both the data (SDA) and the Clock (SCL) lines, thus enabling two buses of 400 pF. The I2C-bus capacitance limit of 400 pF restricts the number of devices and bus length. Using the PCA9515 enables the system designer to isolate two halves of a bus, thus more devices or longer length CAN be accommodated. It CAN also be used to run two buses, one at 5 V and the other at 3.3 V or a 400 kHz and 100 kHz bus, where the 100 kHz bus is isolated when 400 kHz operation of the other is required. Two or more PCA9515s cannot be put in series. The PCA9515 design does not allow this configuration. Since there is no direction pin, slightly different "legal" low voltage levels are used to avoid lock-up conditions between the input and the output. A "regular low" applied at the input of a PCA9515 will be propagated as a "buffered low" with a slightly higher value. When this "buffered low" is applied to another PCA9515 PCA9516 or PCA9518 in series, the second PCA9515 PCA9516 or PCA9518 will not recognize it as a "regular low" and will not propagate it as a "buffered low" again. The PCA9510 9511/9513/9514 and PCA9512 cannot be used in series with the PCA9515 PCA9516 or PCA9518 but CAN be used in series with themselves since they use shifting instead of static offsets to avoid lock-up conditions.
By NXP Semiconductors
Part Manufacturer Description Datasheet Samples
PCA9515ADR Texas Instruments Dual Bidirectional I2C Bus and SMBus Repeater 8-SOIC -40 to 85
PCA9515ADT Texas Instruments Dual Bidirectional I2C Bus and SMBus Repeater 8-SOIC -40 to 85
PCA9515AD Texas Instruments Dual Bidirectional I2C Bus and SMBus Repeater 8-SOIC -40 to 85
PCA9515ADG4 Texas Instruments Dual Bidirectional I2C Bus and SMBus Repeater 8-SOIC -40 to 85
PCA9515APW Texas Instruments Dual Bidirectional I2C Bus and SMBus Repeater 8-TSSOP -40 to 85
PCA9515ADGKRG4 Texas Instruments Dual Bidirectional I2C Bus and SMBus Repeater 8-VSSOP -40 to 85
PCA9515APWR Texas Instruments Dual Bidirectional I2C Bus and SMBus Repeater 8-TSSOP -40 to 85
PCA9515ADGKR Texas Instruments Dual Bidirectional I2C Bus and SMBus Repeater 8-VSSOP -40 to 85
PCA9515APWG4 Texas Instruments Dual Bidirectional I2C Bus and SMBus Repeater 8-TSSOP -40 to 85
PCA9515ADGKT Texas Instruments Dual Bidirectional I2C Bus and SMBus Repeater 8-VSSOP -40 to 85
PCA9515A 's PackagesPCA9515A 's pdf datasheet
PCA9515AD SO
PCA9515ADP TSSOP




PCA9515A Pinout, Pinouts
PCA9515A pinout,Pin out
This is one package pinout of PCA9515A,If you need more pinouts please download PCA9515A's pdf datasheet.

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