TUSB8020B-Q1 Datasheet – Two-Port 5.0Gbps USB 3.0 Hub

Part Number : TUSB8020B-Q1

Function : Automotive Two-Port USB 3.0 Hub

Package : HTQFP (48) Type

Manufacturers : Texas Instruments

Pinouts :

TUSB8020B-Q1 datasheet

Description :

The TUSB8020B-Q1 is a two-port USB 3.0 compliant hub. It provides simultaneous SuperSpeed USB and high-speed/full-speed connections on the upstream port and provides SuperSpeed USB, high-speed, full speed, or low-speed connections on the downstream ports.

When the upstream port is connected to an electrical environment that only supports high-speed or full-speed/low-speed connections, SuperSpeed USB connectivity is disabled on the downstream ports. When the upstream port is connected to an electrical environment that only supports full- peed/low-speed connections, SuperSpeed USB and high-speed connectivity are disabled on the downstream ports.

Features :

1. Two Port USB 3.0 Compliant Hub

2. Support D+/D- Divider Mode

3. Supports Operation as a USB 3.0 or USB 2.0 Compound Device

4. Provides 128-Bit Universally Unique Identifier (UUID)

TUSB8020B-Q1 Datasheet PDF Download

TUSB8020B-Q1 pdf

Other data sheets within the file :


CH341A PDF – EEPROM Flash BIOS USB Programmer

This post explains for the USB-Interface-Chip.

The Part Number is CH341A.

The function of this semiconductor is USB bus convert chip for EEPROM Flash BIOS USB Programmer.

The Package is DIP, SSOP 28 Pin

Manufacturers : Nanjing Qinheng Microelectronics ( http://wch-ic.com/ )

See the preview image and the CH341A datasheet PDF file for more information.


CH341A datasheet

1 page
CH341A image

Description :

The CH341A is a USB bus convert chip, providing UART, printer port, parallel and synchronous serial with 2-wire or 4-wire through USB bus. In UART mode, CH341 provides alternant rate control signals such as serial transfer enable, serial receive in ready etc.

It also supplies common MODEM communication signal in order to expand UART for computer or upgrade common synchronous interface device to USB bus directly. In printer port mode, CH341 supplies standard USB printer port which compounds USB relevant protocol and Windows operate system used to upgrade ordinary parallel printer to USB bus directly. In parallel mode, CH341 gives out 8-bit parallel in EPP or MEM mode. It can be used to input/output data directly without MCU/DSP. Besides, CH341A also supports some common synchronous serial such as 2-wire (SCL, SDA) and 4-wire (CS, SCK/CLK, MISO/SDI/DI […]

2 page

Reference Site : CH341A Programmer : 8 Steps – Instructables

Features :

1. Full speed USB device interface, conforms to USB Specification Version 2.0, only needs crystal and
capacitance external.

2. Optional: define Vender ID, production ID and list number through external low-cost serial EEPROM.

3. Supports 5V and 3.3V power source.

4. Low-cost, directly convert serial peripheral equipment, parallel printer and parallel peripheral

CH341A Datasheet