Datasheet > ISP1520BD,551

ISP1520BD,551

更新时间： 2024-11-27 03:18:19

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
53页	264K
描述
IC UNIVERSAL SERIAL BUS CONTROLLER, PQFP64, 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64, Bus Controller

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ISP1520BD,551 数据手册

ISP1520

Hi-Speed Universal Serial Bus hub controller

Rev. 04 — 28 April 2006

Product data sheet

1. General description

The ISP1520 is a stand-alone Universal Serial Bus (USB) hub controller IC that complies

with Universal Serial Bus Speciﬁcation Rev. 2.0. It supports data transfer at high-speed

(480 Mbit/s), full-speed (12 Mbit/s) and low-speed (1.5 Mbit/s).

The upstream facing port can be connected to a Hi-Speed USB host or hub, or to an

Original USB host or hub. If the upstream facing port is connected to a Hi-Speed USB

host or hub, then the ISP1520 will operate as a Hi-Speed USB hub. That is, it will support

high-speed, full-speed and low-speed devices connected to its downstream facing ports. If

the upstream facing port is connected to an Original USB host or hub, then the ISP1520

will operate as an Original USB hub. That is, high-speed devices that are connected to its

downstream facing ports will operate in full-speed mode instead.

The ISP1520 is a full hardware USB hub controller. All Original USB devices connected to

the downstream facing ports are handled using a single Transaction Translator (TT), when

operating in a cross-version environment. This allows the whole 480 Mbit/s upstream

bandwidth to be shared by all the Original USB devices on its downstream facing ports.

The ISP1520 has four downstream facing ports. If not used, ports 3 and 4 can be

disabled. The vendor ID, product ID and string descriptors on the hub are supplied by the

internal ROM; they can also be supplied by an external I²C-bus EEPROM or a

microcontroller.

The ISP1520 is suitable for self-powered hub designs.

An analog overcurrent detection circuitry is built into the ISP1520, which can also accept

digital overcurrent signals from external circuits; for example, Micrel MOSFET switch

MIC2026. The circuitry can be conﬁgured to trip on a global or an individual overcurrent

condition.

Each port comes with two status indicator LEDs.

Target applications of the ISP1520 are monitor hubs, docking stations for notebooks,

internal USB hub for motherboards, hub for extending Intel Easy PCs, hub boxes, and so

on.

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型号	品牌	获取价格	描述	数据表
ISP1520BD-S	NXP	获取价格	IC,BUS CONTROLLER,CMOS,QFP,64PIN
ISP1521	NXP	获取价格	Hi-Speed Universal Serial Bus hub controller
ISP1521	STMICROELECTRONICS	获取价格	IC USB HUB CONTROLLER HS 80-LQFP
ISP1521BE	NXP	获取价格	Hi-Speed Universal Serial Bus hub controller
ISP1561	NXP	获取价格	ISP1561BM
ISP1561BM	NXP	获取价格	ISP1561BM
ISP1561BM,518	NXP	获取价格	IC UNIVERSAL SERIAL BUS CONTROLLER, PQFP128, 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, MS-026,
ISP1561BM,551	NXP	获取价格	IC UNIVERSAL SERIAL BUS CONTROLLER, PQFP128, 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, MS-026,
ISP1562	NXP	获取价格	Hi-Speed Universal Serial Bus PCI Host Controller
ISP1562BE	NXP	获取价格	Hi-Speed Universal Serial Bus PCI Host Controller