TUSB9261-Q1: About the time until USB_DP becomes High after VBUS, 3.3V and 1.1V are turned on

user5861762

Part Number: TUSB9261-Q1

Hi,

Please tell the specification of TUSB9261-Q1 about the time

until USB_DP becomes High after VBUS, 3.3V and 1.1V are turned on at the same time.

Also, is the maximum value of the actual value less than 1 second (USB standard)?

0 Malik Barton57 over 5 years ago

Hi,

TUSB9261-Q1 internal DP pull up is tied to 3.3V supply. TUSB9261-Q1 DP pull up will be present when part is released from reset (GRSTz).

0 user5861762 over 5 years ago in reply to Malik Barton57

Hi,

It is the confirmation result at our company.

After GRST becomes High, DP becomes High after loading Firmware from SFLASH.

The time is about 204msec. See the timing below.

What is the maximum time for the TUSB9261-Q1 specifications?

Best Regard

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