XR22801IL32-F

XR22801IL32-F Datasheet

XR22801

Part	Datasheet
XR22801IL32-F	XR22801IL32-F (pdf)

PDF Datasheet Preview
XR22801 Hi-Speed USB to 10/100 Ethernet Bridge The XR22801 is a Hi-Speed USB compound device with an embedded hub and 4 downstream USB functions 10/100 Ethernet Controller, UART, multi-master capable I2C controller, and an Enhanced Dedicated GPIO Entity EDGE controller. The upstream USB interface has an integrated USB PHY and device controller that is compliant with both Hi-Speed 480Mbps and Full-Speed 12Mbps USB The vendor ID, product ID, power mode, remote wakeup support and maximum power consumption are amongst the values that can be programmed using the on-chip One-Time Programmable OTP memory. The Ethernet controller has an integrated 10/100 Ethernet MAC and PHY and is compliant with IEEE The Ethernet controller supports autonegotiation, 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 16 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. FEATURES USB Compliant Interface 10/100 Ethernet Controller 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 APPLICATIONS USB to Ethernet Dongles POS Terminals Test Instrumentation Networking Factory Automation and Process Controls Industrial Applications Ordering Information Back Page Block Diagram 25 MHz XO Upstream USB Phy USB Hub OTP Memory 10/100 Ethernet Controller Ethernet Phy I2C Multimaster UART / Modem IO EDGE Controller Ethernet UART / EDGE 2014 Exar Corporation 1 / 40 XR22801 Extended Features • USB Compliant Interface • Integrated USB PHY • Supports 480 Mbps USB Hi-Speed and 12 Mbps USB Full-Speed data rate • Supports USB suspend, resume and remote wakeup operations • Compatible with USB CDC-ECM and CDC-ACM • 10/100 Ethernet Controller • Compliant with IEEE • Integrated 10/100 Ethernet MAC and PHY • 10BASE-T and 100BASE-TX support • Full-duplex and half-duplex support • Full-duplex and half-duplex flow control • Preamble generation and removal • Automatic 32-bit CRC generation and checking • Automatic payload padding and pad removal • Diagnostic loop-back modes • TCP/UDP/IP/ICMP checksum offload support • Flexible Address filtering modes • Wakeup packet support • Support for 2 status LEDs • Enhanced UART features • Data rates up to 15 Mbps • Fractional Baud Rate Generator • 1024 byte TX and RX FIFOs • 7, 8 or 9 data bits, 1 or 2 stop bits • Automatic Hardware Flow Control • Automatic Software Flow Control • Multidrop 9-bit mode • Auto RS-485 Half-Duplex Control • I2C Multi-master • Up to 400 kbps transfers • Multi-master capable • Enhanced Dedicated GPIO Entity EDGE • Parallel GPIO access • Two PWM generators • Custom Ethernet software drivers • Windows 2000, XP, Vista, Win 7 and Win 8 • Windows CE • Linux • OS X 2014 Exar Corporation 2 / 40 XR22801 Absolute Maximum Ratings Stresses beyond the limits listed below may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. VCC Supply Input Voltage all pins except SCL, SDA, USBD+, to +4.0V Input Voltage USBD+ and to +5.75V Input Voltage SCL and to +6.0V Junction Operating Conditions Operating Temperature to +85°C VCC Supply to 5.25V Electrical Characteristics Unless otherwise noted TA = -40°C to +85°C, VCC = 4.4V to 5.25V Parameter Conditions Power Consumption Operating Current No load on GPIO pins or 3V3_OUT ISUSP Suspend Mode Current No load on GPIO pins or 3V3_OUT Ordering Information XR22801IL32-F XR22801IL32TR-F Package 32-pin QFN 32-pin QFN Green Operating Temperature Range -40°C to +85°C -40°C to +85°C Packaging Quantity 490 / Tray 3000 / Reel Date July 2014 Initial Release XR22801 Marking XR22801 For Further Assistance: Technical Support techsupport.exar.com Technical Documentation: Exar Corporation Headquarters and Sales Offices 48720 Kato Road Tel. +1 510 668-7000 Fremont, CA 95438 - USA Fax +1 510 668-7001 NOTICE EXAR Corporation reserves the right to make changes to the products contained in this publication in order to improve design, performance or reliability. EXAR Corporation assumes no responsibility for the use of any circuits described herein, conveys no license under any patent or other right, and makes no representation that the circuits are free of patent infringement. Charts and schedules contained herein are only for illustration purposes and may vary depending upon a user’s specific application. While the information in this publication has been carefully checked no responsibility, however, is assumed for inaccuracies. EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writing, assurances to its satisfaction that a the risk of injury or damage has been minimized b the user assumes all such risks c potential liability of EXAR Corporation is adequately protected under the circumstances. Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited. 2014 Exar Corporation 40 / 40

PDF Datasheet Preview

XR22801

Hi-Speed USB to 10/100 Ethernet Bridge

The XR22801 is a Hi-Speed USB compound device with an embedded hub and 4 downstream USB functions 10/100 Ethernet Controller, UART, multi-master capable I2C controller, and an Enhanced Dedicated GPIO Entity EDGE controller.

The upstream USB interface has an integrated USB PHY and device controller that is compliant with both Hi-Speed 480Mbps and Full-Speed 12Mbps USB The vendor ID, product ID, power mode, remote wakeup support and maximum power consumption are amongst the values that can be programmed using the on-chip One-Time Programmable OTP memory.

The Ethernet controller has an integrated 10/100 Ethernet MAC and PHY and is compliant with IEEE The Ethernet controller supports autonegotiation, 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 16 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.

FEATURES USB Compliant Interface 10/100 Ethernet Controller 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

APPLICATIONS USB to Ethernet Dongles POS Terminals Test Instrumentation Networking Factory Automation and Process Controls Industrial Applications
Ordering Information Back Page

Block Diagram
25 MHz XO

Upstream USB Phy

USB Hub

OTP Memory
10/100 Ethernet Controller

Ethernet Phy

I2C Multimaster

UART / Modem IO

EDGE Controller

Ethernet

UART / EDGE
2014 Exar Corporation
1 / 40

XR22801

Extended Features
• USB Compliant Interface
• Integrated USB PHY
• Supports 480 Mbps USB Hi-Speed and 12 Mbps USB Full-Speed data rate
• Supports USB suspend, resume and remote wakeup operations
• Compatible with USB CDC-ECM and CDC-ACM
• 10/100 Ethernet Controller
• Compliant with IEEE
• Integrated 10/100 Ethernet MAC and PHY
• 10BASE-T and 100BASE-TX support
• Full-duplex and half-duplex support
• Full-duplex and half-duplex flow control
• Preamble generation and removal
• Automatic 32-bit CRC generation and checking
• Automatic payload padding and pad removal
• Diagnostic loop-back modes
• TCP/UDP/IP/ICMP checksum offload support
• Flexible Address filtering modes
• Wakeup packet support
• Support for 2 status LEDs
• Enhanced UART features
• Data rates up to 15 Mbps
• Fractional Baud Rate Generator
• 1024 byte TX and RX FIFOs
• 7, 8 or 9 data bits, 1 or 2 stop bits
• Automatic Hardware Flow Control
• Automatic Software Flow Control
• Multidrop 9-bit mode
• Auto RS-485 Half-Duplex Control
• I2C Multi-master
• Up to 400 kbps transfers
• Multi-master capable
• Enhanced Dedicated GPIO Entity EDGE
• Parallel GPIO access
• Two PWM generators
• Custom Ethernet software drivers
• Windows 2000, XP, Vista, Win 7 and Win 8
• Windows CE
• Linux
• OS X
2014 Exar Corporation
2 / 40

XR22801

Absolute Maximum Ratings

Stresses beyond the limits listed below may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime.

VCC Supply Input Voltage all pins except SCL, SDA, USBD+, to +4.0V Input Voltage USBD+ and to +5.75V Input Voltage SCL and to +6.0V Junction

Operating Conditions

Operating Temperature to +85°C VCC Supply to 5.25V

Electrical Characteristics

Unless otherwise noted TA = -40°C to +85°C, VCC = 4.4V to 5.25V

Parameter

Conditions

Power Consumption

Operating Current

No load on GPIO pins or 3V3_OUT

ISUSP

Suspend Mode Current

No load on GPIO pins or 3V3_OUT
Ordering Information

XR22801IL32-F XR22801IL32TR-F

Package
32-pin QFN 32-pin QFN

Green

Operating Temperature Range
-40°C to +85°C -40°C to +85°C

Packaging Quantity
490 / Tray 3000 / Reel

Date July 2014

Initial Release

XR22801

Marking XR22801

For Further Assistance:

Technical Support techsupport.exar.com

Technical Documentation:

Exar Corporation Headquarters and Sales Offices
48720 Kato Road

Tel. +1 510 668-7000

Fremont, CA 95438 - USA

Fax +1 510 668-7001

NOTICE

EXAR Corporation reserves the right to make changes to the products contained in this publication in order to improve design, performance or reliability. EXAR Corporation assumes no responsibility for the use of any circuits described herein, conveys no license under any patent or other right, and makes no representation that the circuits are free of patent infringement. Charts and schedules contained herein are only for illustration purposes and may vary depending upon a user’s specific application. While the information in this publication has been carefully checked no responsibility, however, is assumed for inaccuracies.

EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writing, assurances to its satisfaction that a the risk of injury or damage has been minimized b the user assumes all such risks c potential liability of EXAR Corporation is adequately protected under the circumstances.

Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
2014 Exar Corporation
40 / 40

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Datasheet ID: XR22801IL32-F 512928