- 您現在的位置：買賣IC網 > PDF目錄360998 > ISP1181DGG (NXP SEMICONDUCTORS) INDUCTOR 4.7NH +-.3NH 0402 SMD PDF資料下載
參數資料
| 型號： | ISP1181DGG |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線控制器 |
| 英文描述： | INDUCTOR 4.7NH +-.3NH 0402 SMD |
| 中文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PDSO48 |
| 封裝： | 6.10 MM, PLASTIC, TSSOP-48 |
| 文件頁數： | 8/69頁 |
| 文件大小： | 1655K |
| 代理商： | ISP1181DGG |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當前第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁
Philips Semiconductors
ISP1181
Full-speed USB interface
Objective specification
Rev. 01 — 13 March 2000
8 of 69
9397 750 06896
Philips Electronics N.V. 2000. All rights reserved.
7.2 Philips Serial Interface Engine (SIE)
The Philips SIE implements the full USB protocol layer. It is completely hardwired for
speed and needs no firmware intervention. The functions of this block include:
synchronization pattern recognition, parallel/serial conversion, bit (de-)stuffing, CRC
checking/generation, Packet IDentifier (PID) verification/generation, address
recognition, handshake evaluation/generation.
7.3 Memory Management Unit (MMU) and integrated RAM
The MMU and the integrated RAM provide the conversion between the USB speed
(12 Mbit/s bursts) and the parallel interface to the microcontroller (max. 12 Mbyte/s).
This allows the microcontroller to read and write USB packets at its own speed.
7.4 SoftConnect
The connection to the USB is accomplished by bringing D
+
(for high-speed USB
devices) HIGH through a 1.5 k
pull-up resistor. In the ISP1181 the 1.5 k
pull-up
resistor is integrated on-chip and is not connected to V
CC
by default. The connection
is established through a command sent by the external/system microcontroller. This
allows the system microcontroller to complete its initialization sequence before
deciding to establish connection with the USB. Re-initialization of the USB connection
can also be performed without disconnecting the cable.
The ISP1181 will check for USB V
BUS
availability before the connection can be
established. V
BUS
sensing is provided through pin V
BUS
.
Remark:
Note that the tolerance of the internal resistors is 25%. This is higher than
the 5% tolerance specified by the USB specification. However, the overall V
SE
voltage
specification for the connection can still be met with a good margin. The decision to
make use of this feature lies with the USB equipment designer.
7.5 GoodLink
Indication of a good USB connection is provided at pin GL through GoodLink
technology. During enumeration the LED indicator will blink on momentarily. When
the ISP1181 has been successfully enumerated (the device address is set), the LED
indicator will remain permanently on. Upon each successful packet transfer (with
ACK) to and from the ISP1181 the LED will blink off for 100 ms. During ‘suspend’
state the LED will remain off.
This feature provides a user-friendly indicator of the status of the USB device, the
connected hub and the USB traffic. It is a useful field diagnostics tool for isolating
faulty equipment. It can therefor help to reduce field support and hotline overhead.
A register bit can be set to stop the GoodLink LED blinking in traffic (see
Table 20
).
The LED indicator will then be permanently on.
7.6 Bit clock recovery
The bit clock recovery circuit recovers the clock from the incoming USB data stream
using a 4
×
over-sampling principle. It is able to track jitter and frequency drift as
specified by the USB Specification Rev. 1.1
相關PDF資料 |
PDF描述 |
|---|---|
| ISP1183 | Low-power Universal Serial Bus interface device with DMA |
| ISP1183BS | Low-power Universal Serial Bus interface device with DMA |
| ISP1301 | Universal Serial Bus On-The-Go transceiver |
| ISP1301BS | Universal Serial Bus On-The-Go transceiver |
| ISP1362 | Single-chip Universal Serial Bus On-The-Go controller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ISP1183 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-power Universal Serial Bus interface device with DMA |
| ISP1183BS | 功能描述:IC USB HOST CTRL LOW-SPD 32HVQFN RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標準包裝:3,000 系列:- 應用: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 供應商設備封裝:24-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) 安裝類型:表面貼裝 產品目錄頁面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2 |
| ISP1183BS,118 | 功能描述:USB 接口集成電路 FULL-SPD USB2 DEVICE RoHS:否 制造商:Cypress Semiconductor 產品:USB 2.0 數據速率: 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| ISP1183BS,151 | 功能描述:USB 接口集成電路 FULL-SPD USB2 DEVICE RoHS:否 制造商:Cypress Semiconductor 產品:USB 2.0 數據速率: 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| ISP1183BS,157 | 功能描述:USB 接口集成電路 DO NOT USE ORDER -S OR -T PART RoHS:否 制造商:Cypress Semiconductor 產品:USB 2.0 數據速率: 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
發布緊急采購，3分鐘左右您將得到回復。