|Information||Hi-Speed USB to 10/100 Ethernet Bridge w/4-CH UARTs|
|Supply Voltage Range VCC (V)||4.4 to 5.25|
|Max UART/GPIO Input Voltage (V)||3.6|
|Max UART/GPIO Output Voltage (V)||3.6|
|CPU Interface||USB 2.0|
|No. of GPIOs||32|
|Max Data Rate (Mbps)||15|
|Temperature Range (°C)||-40 to 85|
|Auto Half-Duplex Control||✔|
|Ethernet MAC/PHY (Mbps)||10/100|
|UART Tx/Rx FIFO (Bytes)||1024/1024|
|HBM ESD (USB) (kV)||15|
The XR22804 is a Hi-Speed USB 2.0 compound device with an embedded hub and 7 downstream USB functions: 10/100 Ethernet MAC and PHY, 4 UARTs, multi-master capable I2C controller, and an Enhanced Dedicated GPIO Entity (EDGE) controller.
The upstream USB interface has an integrated USB 2.0 PHY and device controller that is compliant with both Hi-Speed (480Mbps) and Full-Speed (12Mbps) USB 2.0. The vendor ID, product ID, power mode, remotewakeup support and maximum power consumption are amongst the values that can be programmed using the on-chip One-Time Programmable (OTP) memory.
The Ethernet 10/100 MAC and PHY are compliant with IEEE 802.3 and supports auto-negotiation, auto-MDIX, checksum offload, auto-polarity correction in 10Base-T and remote wakeup capabilities.
The enhanced UART has a maximum data rate of 15 Mbps. Using a fractional baud rate generator, any baud rate between 300 bps and 15 Mbps can be accurately generated. In addition, the UART has a large 1024-byte TX FIFO and RX FIFO to optimize the overall data throughput for various applications. The automatic RS485 control feature simplifies both the hardware and software for half-duplex RS-485 applications. If required, the multidrop (9-bit) mode feature further simplifies typical multidrop applications by enabling / disabling the UART receiver depending on the address byte received.
The multi-master capable I2C controller and EDGE controller (up to 32 GPIOs) can be accessed via the USB HID interface. The EDGE pins or I2C interface can be used for controlling and monitoring other peripherals. Up to 2 EDGE pins can be configured as a PWM generator.
- USB 2.0 Compliant Interface
- 10/100 Ethernet MAC and Phy
- Enhanced UART
- Half-Duplex Mode
- I2C Multi-master
- Enhanced Dedicated GPIO Entity (EDGE)
- Single +5.0V Power Supply Input
- Regulated +3.3V Output Power
- Single 25MHz Crystal
- ±15kV HBM ESD Protection on USB data pins
- ±8kV HBM ESD Protection on all other pins
- USB to Ethernet Dongles
- POS Terminals
- Test Instrumentation
- Factory Automation and Process Controls
- Industrial Applications
Documentation & Design Tools
|Data Sheets||XR22804 Hi-Speed USB to 10/100 Ethernet Bridge with 4 UARTs||1D||April 2019||835.5 KB|
|Application Notes||DAN-190, MaxLinear UARTs in RS-485 Applications||2||December 2022||2.3 MB|
|Application Notes||AN202, USB UART Board Design Considerations for USB Compliance||June 2021||647.5 KB|
|Application Notes||AN-226, Windows Driver Customization for USB UARTs||R00||February 2020||2.5 MB|
|User Guides & Manuals||XR2280x USB Ethernet Bridges Design Guide||00||April 2020||2.3 MB|
|User Guides & Manuals||XR22804 Evaluation Board User’s Manual||1A||May 2016||1.4 MB|
|Software: GUIs & Utilities||Sample USB UART GUI (Serial Test App)||220.127.116.11||July 2021||1.4 MB|
|Software: GUIs & Utilities||Android Application||1C||November 2015||476.6 KB|
|Product Flyers||Full-Speed USB UART Family||1.1||November 2020||605.3 KB|
|Software: Drivers||Windows 11||18.104.22.168||January 2023||42.5 KB|
|Software: Drivers||Windows 10 and newer||22.214.171.124||January 2023||169.2 KB|
|Software: Drivers||Linux 3.6.x and Newer||1D||September 2021||29.9 KB|
|Software: Drivers||Windows 7, 8||126.96.36.199||December 2019||145.7 KB|
|Software: Drivers||Windows 10||188.8.131.52||June 2018||78 KB|
|Software: Drivers||Windows XP, Vista, 7||184.108.40.206||December 2017||86 KB|
|Software: Drivers||XRUSB1 for Win XP SP3 and newer||220.127.116.11||March 2016||1 MB|
|Software: Drivers||Linux 2.6.18 to 3.4.x||1A||January 2015||19.1 KB|
|Schematics & Design Files||XR22802/804 Evaluation Board BRD, DSN Files||June 2016||840.3 KB|
|Schematics & Design Files||Evaluation Board Schematic||2.0||May 2016||76 KB|
|Product Brochures||Interface Brochure||October 2022||3.8 MB|
Quality & RoHS
Parts & Purchasing
|Part Number||Pkg Code||Min Temp||Max Temp||Status||Suggested Replacement||Buy Now||Order Samples||PDN|
|XR22804IL56-F||QFN56 8x8 OPT1||-40||85||Active||Order|
|XR22804IL56TR-F||QFN56 8x8 OPT1||-40||85||OBS|
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.