USB3813中文资料USB Hubs数据手册Microchip规格书

描述 Description

The Microchip USB3813 is a low-power, OEM configurable, MTT (Multi-Transaction Translator) USB 2.0 hub controller with 3 downstream ports and advanced features for embedded USB applications. The USB3813 is fully compliant with the USB 2.0 Specification, USB 2.0 Link Power Management Addendum, High-Speed Inter-Chip (HSIC) USB Electrical Specification Revision 1.0, and will attach to an upstream port as a Full-Speed hub or as a Full-/Hi-Speed hub. The 3-port hub supports Low-Speed, Full-Speed, and Hi-Speed (if operating as a Hi-Speed hub) downstream devices on all of the enabled downstream (non-HSIC) ports. HSIC ports support only Hi-Speed operation.



The USB3813 has been specifically optimized for mobile embedded applications. The pin-count has been reduced by optimizing the USB3813 for mobile battery-powered embedded systems where power consumption, small package size, and minimal BOM are critical design requirements. Standby mode power has been minimized and reference clock inputs can be aligned to the customer’s specific mobile application. Flexible power rail options ease integration into energy efficient designs by allowing the USB3813 to be powered in a single-source (VBUS, VBAT, 3.3V) or a dual-source (VBAT + 1.8, 3.3V + 1.8) configuration. Additionally, all required resistors on the USB ports are integrated into the hub, including all series termination and pull-up/pull-down resistors on the D+ and D– pins.



The USB3813 supports both upstream battery charger detection and downstream battery charging. The USB3813 integrated battery charger detection circuitry supports the USB-IF Battery Charging (BC1.2) detection method and most Apple devices. These circuits are used to detect the attachment and type of a USB charger and provide an interrupt output to indicate charger information is available to be read from the device's status registers via the serial interface. The USB3813 provides the battery charging handshake and supports the following USB-IF BC1.2 charging profiles:

DCP: Dedicated Charging Port (Power brick with no data)CDP: Charging Downstream Port (1.5A with data)SDP: Standard Downstream Port (0.5A with data)Custom profiles loaded via SMBus or OTPThe USB3813 provides an additional USB endpoint dedicated for use as a USB to I2C/SPI interface, allowing external circuits or devices to be monitored, controlled, or configured via the USB interface.

特性 Features

Highlights
• High-Speed Inter-Chip (HSIC) support
• USB-IF Battery Charger revision 1.2 support on up and downstream ports (DCP, CDP, SDP)
• FlexConnect: Downstream port 1 able to swap with upstream port, allowing master capable devices to control other devices on the hub
• USB Link Power Management (LPM) support
• Vendor Specific Messaging (VSM) support
• Flexible power rail support
• 3.3V only operation
• 3.3V + 1.8V operation
• Mobile Phones
• Ultrabooks
• Digital Video Cameras
• PDAs
• GPS Personal Navigation Devices
• Media Players/Viewers

应用 Application

·Mobile Phones
·Tablets
·Ultrabooks
·Digital Still Cameras
·Digital Video Cameras
·Gaming Consoles
·PDAs
·Portable Media Players
·GPS Personal Navigation Devices
·Media Players/Viewers

简介

USB3813属于集成电路（IC）的控制器。由Microchip制造生产的USB3813控制器该系列产品主要用于在采用不同通信协议和/或信令方法的端点之间提供信息连接。示例包括将 I2C 总线连接到 UART，将 USB 连接到 I2C、SPI、以太网或 UART、以太网 MAC 和 PHY 等的器件。此外，还包括用于通过为点对点通信设计的接口建立多路连接的器件，例如 USB 集线器控制器。