Part Number: TCA9801 Hi Team,
We are using TCA9801DGK in one of our new design for i2c isolation when the slave is not powered on.
Please find the below image for more details.
1.Power Switch and TCA9801 IC will be disabled in default condition, and shall…
Hi Tamio,
If the HDMI re-driver has the capability to clock stretch on B-side, the Intel SoC must be able to drive A-side below VILC < 110mV as Clemens has mentioned.
Clemens is also correct about the TCA9801. The device direction control mechanism…
Other Parts Discussed in Thread: TCA9617B , TCA9509 , TCA9801 , TCA9800 , TCA9803 , TCA9802 , TCA9511A , TCA4307 FAQ: Logic and Voltage Translation > IxC >> What Connections of I2C Buffers are not Allowed ?
Part Numbers: TCA9517 , TCA9517A , TCA9509 , TCA9…
Part Number: TCA9801 Hi, Let me talk about the using TCA9801. I got two questions from customers. ① B-side has internal current source. Therefore, a pull-up resistor is not required. Is there a problem when the pull-up resistor is installed outside the TCA9801…
Part Number: TCA9801 Hi,
How many TCA9801 as slave can be connected with B-side of TCA9801 as master?
Please ignore the capacitance of the BUS between the master and the slaves. Please also refer BUS-B or BUS-C in Fig.31 of the datasheet.
Best Regards…
Other Parts Discussed in Thread: TCA9517A , TCA9517 , TCA9511A , TCA4307 FAQ: Logic and Voltage Translation > IxC >> What are the different I2C Buffer Direction Control Mechanisms ?
I2C buffers implement direction control mechanisms to determine which…
Part Number: TCA9801 Can we use normal amplifier instead of TAC980X for PMBUS buffer or not.
Does the parts internal has time pull down and up control and data flip-latch? thanks.
BTW mostly buffer main function internal is amplifier, could we use amplifier…
Ok, I read some app notes about the TCA98XX family and I understand the differences now.
When going through the design requirements for a TCA9801, it says that I need to meet VIL/IILC/RILC. Based on the thresholds bleow, I can meet VIL and I believe I…
Hi Bobby,
We tried the TCA9801 and TCA9617B as well.We are operating the bus at 400KHz But still, the device read is not proper. But with TCA9517, the read write happens most of the time. Please suggest some solution/alternate parts.
~ Rajneesh
Hi Eric
1.PORTB has no pull-up resistor
2.We tried the TCA9800/TCA9801 two devices again. In contrast to the waveform, the steps seem to be caused by different current source sizes of PORTB.The edge of TCA9800/TCA9801 is monotonous
TCA9800/SCLB/falling…