參數(shù)資料
型號(hào)： ISP1520BD,557
廠商： ST-ERICSSON
元件分類： 總線控制器
英文描述： UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封裝： 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64
文件頁(yè)數(shù)： 54/54頁(yè)
文件大?。?/td> 288K
代理商： ISP1520BD,557
ISP1520_4
Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 04 — 28 April 2006
8 of 53
Philips Semiconductors
ISP1520
Hi-Speed USB hub controller
7.
Functional description
7.1 Analog transceivers
The integrated transceivers directly interface to USB lines. They can transmit and receive
serial data at high-speed (480 Mbit/s), full-speed (12 Mbit/s) and low-speed (1.5 Mbit/s).
7.2 Hub controller core
The main components of the hub core are:
Philips Serial Interface Engine (SIE)
Routing logic
Transaction Translator (TT)
Mini-Host Controller
Hub repeater
Hub controller
Port controller
Bit clock recovery
7.2.1 Philips serial interface engine
The Philips Serial Interface Engine (SIE) implements the full USB protocol layer. It is
completely hardwired for speed and needs no rmware intervention. The functions of this
block include: synchronization, pattern recognition, parallel or serial conversion, bit
(de-)stufng, CRC checking and generation, Packet IDentier (PID) verication and
generation, address recognition, and handshake evaluation and generation.
7.2.2 Routing logic
The routing logic directs signaling to appropriate modules (mini-Host Controller, Original
USB repeater and Hi-Speed USB repeater) according to the topology in which the hub is
placed.
7.2.3 Transaction translator
The Transaction Translator (TT) acts as a go-between mechanism that links devices
operating in Original USB mode and Hi-Speed USB upstream mode. For the ‘IN’ direction,
data is concatenated in TT buffers till the proper length is reached, before the host takes
the transaction. In the reverse direction (OUT), the mini-host dispenses the data
contained in TT buffers over a period that ts into the Original USB bandwidth. This
continues until all outgoing data is emptied. TT buffers are used only on split transactions.
7.2.4 Mini-Host Controller
The internal mini-host generates all the Original USB IN, OUT or SETUP tokens for the
downstream facing ports, while the upstream facing port is in high-speed mode. The
responses from Original USB devices are collected in TT buffers, until the end of the
complete split transaction clears TT buffers.
相關(guān)PDF資料
PDF描述
ISP1561BM,557 UNIVERSAL SERIAL BUS CONTROLLER, PQFP128
ISP1561BM,557 UNIVERSAL SERIAL BUS CONTROLLER, PQFP128
ISP1563BM UNIVERSAL SERIAL BUS CONTROLLER, PQFP100
ISP1563BM,557 UNIVERSAL SERIAL BUS CONTROLLER, PQFP100
ISP1564ET,551 PCI BUS CONTROLLER, PBGA100
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISP1520BDGA 功能描述:IC USB HUB CONTROLLER HS 64-LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 應(yīng)用:PDA，便攜式音頻/視頻，智能電話 接口:I²C，2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) 安裝類型:表面貼裝 產(chǎn)品目錄頁(yè)面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2
ISP1520BD-S 制造商:ST-Ericsson 功能描述:Universal Serial Bus Hub Controller 64-Pin LQFP
ISP1520BD-T 功能描述:USB 接口集成電路 USB2 4 PORT HUB RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
ISP1520BDUM 功能描述:IC USB HUB CONTROLLER HS 64-LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 應(yīng)用:PDA，便攜式音頻/視頻，智能電話 接口:I²C，2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) 安裝類型:表面貼裝 產(chǎn)品目錄頁(yè)面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2
ISP1521 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:IC USB HUB CONTROLLER HS 80-LQFP
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*