Part Number: TUSB4020BI Dear supporter,
we need to use TUSB4020BI for our design. i checked the spec of TUSB4020BIPHPR and TUSB4020BIPHPRQ1, and i did not find any difference. the work temperature is same, TUSB4020BI's ESD level seems even better. is the…
Part Number: TUSB4020BI Hi, Support Team
Here is our client function block as below chart:
if MCU no software and no EEPROM, so only power on TI TUSB4020 could possible to work?
if any suggestion, Please advise me.
Thanks,
Best regards,
Lawrence
Hi Jesse:
Sorry for late update.
For SMBus spec, Vih input high voltage is 1.35v. and for I2C, Vih is 2V for TI hub device. So with 1k pullup, 2.5v should be fine for your system.
Regards
Brian
Part Number: TUSB4020BI-Q1 Hi Team,
Could you help to clarify the sequence definition of the td1 in the TUSB4020BI-Q1 datasheet?
We might facing a timing issue on the VDD33 and VDD so need to clarify the definition of td1 delay and the voltage threshold…
Part Number: TUSB4020BI We're using this USB hub in a design where the upstream port is tied directly to a CY8C4248 PSoC controller's downstream ports on the same board. The Upstream port on the hub is getting damaged in units in the field. I've scoped…
Part Number: TUSB4020BI-Q1 We have made 10 circuit cards, 2 of which are fully functional, and when the other 8 are connected to the computer, the computer often cannot scan and find that the TUSB4020BI-Q1 has been inserted into the USB port, and often…