TUSB8044A: Does the upstream port of TUSB8044A support 10Gbps?

user5965202

Prodigy 70 points

Part Number: TUSB8044A

The spec of TUSB8044A only describes downsteam(5Gbps).Does the upstream port of TUSB8044A support 10Gbps?

over 4 years ago

0 Malik Barton57 over 4 years ago

TI__Guru 64326 points

Hi,

TUSB8044A only support 5 Gbps operation on both the upstream and downstream ports.

0 user5965202 over 4 years ago in reply to Malik Barton57

Prodigy 70 points

According to your answer, I have two new questions.

If the downstream interfaces of the chip are all connected to high-speed devices (all meeting 5Gbps), and they are used simultaneously, what is their maximum average speed?

Does your company have a USB HUB chip with a upstream rate of 10Gbps and a downstream rate of 5Gbps? Could you please help to recommend it?

0 Malik Barton57 over 4 years ago in reply to user5965202

TI__Guru 64326 points

Hi,

TI only have USB Hubs that can operate at USB 3.1 Gen 1 x1 (5 Gbps). No 10 Gbps operation on upstream port.

Maximum throughput will be limited due to packet overheard and multiple devices operating simultaneously. Typical USB 3.0 SSD based mass storage devices max out at around 350 MB/s (single device), we don't see any impact in that throughput from the hub.

0 user5965202 over 4 years ago in reply to user5965202

Prodigy 70 points

We need to connect four USB devices, each way is 250MB/S(a total of 1GB/S). Is TUSB8044A supported

Interface

Interface forum

TUSB8044A: Does the upstream port of TUSB8044A support 10Gbps?