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
應(yīng)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（多交易轉(zhuǎn)換器）USB 2.0高速集線器控制器，具有4個(gè)下行端口和先進(jìn)的嵌入式USB應(yīng)用功能。USB2534完全符合USB2.0規(guī)范、USB2.0鏈接電源管理附錄，并將作為全速集線器或全/高速集線器連接到上游端口。該4端口集線器在所有啟用的下游端口上支持低速、全速和高速（如果作為高速集線器運(yùn)行）的下游設(shè)備。USB2534專(zhuān)門(mén)為嵌入式系統(tǒng)進(jìn)行了優(yōu)化，在這些系統(tǒng)中，高性能和最低BOM成本是關(guān)鍵的設(shè)計(jì)要求。待機(jī)模式的功率已經(jīng)降到最低，參考時(shí)鐘輸入可以根據(jù)客戶(hù)的具體應(yīng)用進(jìn)行調(diào)整。此外，USB端口上的所有必要電阻都集成在集線器中，包括D+和D-引腳上的所有串聯(lián)終止和上拉/下拉電阻。
上行和下行端口（DCP、CDP、SDP）支持USB-IF電池充電器1.2版
支持Apple?設(shè)備的電池充電
支持USB至I2C?橋接端點(diǎn)
支持USB鏈接電源管理（LPM）
用于向主機(jī)發(fā)出遠(yuǎn)程喚醒指示的SUSPEND引腳
支持供應(yīng)商特定信息傳遞（VSM）
低功耗運(yùn)作
全面的電源管理，對(duì)每個(gè)下游端口進(jìn)行單獨(dú)或聯(lián)合的電源控制
支持四頁(yè)配置的OTP閃存
片上上電復(fù)位 (POR)
內(nèi)部3.3和1.2V穩(wěn)壓器
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
