描述

The Microchip USB2534 is a low-power, OEM configurable, MTT (Multi-Transaction Translator) USB 2.0 hub controller with 4 downstream ports and_advanced features for embedded USB applications. The USB2534 is fully compliant with the USB 2.0 Specification, USB 2.0 Link Power Management Addendum and_will attach to an upstream port as a Full-Speed hub or as a Full-/Hi-Speed hub. The 4-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 ports.

The USB2534 has been specifically optimized for embedded systems where high performance, and_minimal BOM costs are critical design requirements. Standby mode power has been minimized and_reference clock inputs can be aligned to the customer’s specific application. Additionally, all required resistors on the USB ports are integrated into the hub, including all series termination and_pull-up/pulldown resistors on the D+ and_D– pins.

The USB2534 supports both upstream battery charger detection and_downstream battery charging. The USB2534 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 USB2534 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 USB2534 provides an additional USB endpoint dedicated for use as a USB to I2C interface, allowing external circuits or devices to be monitored, controlled, or configured via the USB interface.

特性

Highlights

• Hub Controller IC with 4 downstream ports

• USB-IF Battery Charger revision 1.2 support on up and_downstream ports (DCP, CDP, SDP)

• Battery charging support for Apple® devices

• FlexConnect: Downstream port 1 able to swap with upstream port, allowing master_capable devices to control other devices on the hub

• USB to I2C™ bridge endpoint support

• USB Link Power Management (LPM) support

• SUSPEND pin for remote wakeup indication to host

• Vendor Specific Messaging (VSM) support

• Enhanced OEM configuration options available through a single serial I2C EEPROM, OTP, or SMBus Slave Port

• 36-pin (6x6mm) SQFN, RoHS compliant package

• Footprint compatible with USB2514B

Target Applications

• LCD Monitors and_TVs

• Multi-function USB Peripherals

• PC Motherboards

• Set-top Boxes, DVD Players, DVR/PVR

• Printers and_Scanners

• PC Media Drive Bay

• Portable Hub Boxes

• Mobile PC Docking

• Embedded Systems

应用

·LCD Monitors and_TVs

·Multi-function USB Peripherals

·PC Motherboards

·Set-top Boxes, DVD Players, DVR/PVR

·Printers and_Scanners

·PC Media Drive Bay

·Portable Hub Boxes

·Mobile PC Docking

·Embedded Systems

USB2534I-1080AEN是一款MTT（多交易转换器）USB 2.0高速集线器控制器，具有4个下行端口和先进的嵌入式USB应用功能。USB2534完全符合USB2.0规范、USB2.0链接电源管理附录，并将作为全速集线器或全/高速集线器连接到上游端口。该4端口集线器在所有启用的下游端口上支持低速、全速和高速（如果作为高速集线器运行）的下游设备。USB2534专门为嵌入式系统进行了优化，在这些系统中，高性能和最低BOM成本是关键的设计要求。待机模式的功率已经降到最低，参考时钟输入可以根据客户的具体应用进行调整。此外，USB端口上的所有必要电阻都集成在集线器中，包括D+和D-引脚上的所有串联终止和上拉/下拉电阻。

上行和下行端口（DCP、CDP、SDP）支持USB-IF电池充电器1.2版

支持Apple®设备的电池充电

支持USB至I²C™桥接端点

支持USB链接电源管理（LPM）

用于向主机发出远程唤醒指示的SUSPEND引脚

支持供应商特定信息传递（VSM）

低功耗运作

全面的电源管理，对每个下游端口进行单独或联合的电源控制

支持四页配置的OTP闪存

片上上电复位 (POR)

内部3.3和1.2V稳压器

TUSB2046I

TUSB2046B

TUSB4041I

UPD720115

UPD720114

CH334S/Q

CH334H/L

CH335F

RTS5423

FL5502

FE1.1s

FE1.1

RTS5411S

RTS5411E

FL5000

USB2514

USB2533

USB4604

USB4624

USB2532

USB2514B