Other Parts Discussed in Thread: TCA9803
Tool/software:
I need a 4-channel I²C bidirectional level shifter, similar to the TCA9517.
In the case of the TCA9517, the Vil is 0.5V, which is very essential since the Vol of my processor is 0.5V.
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Hi Jefin,
TCA9803DGKR might work here and is p2p to TCA9517DGKR.
Pull-up resistors on B-side of this chip need to be removed for this to work however.
TCA9803 VILB = 0.3 x VCCB and VOLB = 0.26V max.
The images attached are not showing up in case you attached a schematic or layout.
Regards,
Tyler
Hi Tyler,
TCA9803DGKR is 2- channel, i need 4- channel I²C bidirectional level shifter since there is 2 pair I2C lines.
Hi Jefin,
My mistake, you said "similar to" not p2p to TCA9517.
We don't have any I2C buffers that are 4 channel, but if you are only in need of level translation without re-drive, consider using the TCA9543A. This is an I2C switch which also allows for level translation on each of the downstream I2C segments.
Regards,
Tyler