Product Summary

The ISP1521BE 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 applications of the ISP1521BE include Monitor hubs, Docking stations for notebooks, Internal hub for USB motherboards, Hub for extending Easy PCs and Hub boxes.

Parametrics

ISP1521BE absolute maximum ratings: (1)VCC, supply voltage 3.3 V: -0.5 to +4.6 V; (2)VREF(5V0), input reference voltage 5.0 V: -0.5 to +6.0 V; (3)VI(5V0), input voltage on 5 V buffers: -0.5 to +6.0 V; (4)VI(3V3), input voltage on 3.3 V buffers: -0.5 to +4.6 V; (5)VO(3V3), output voltage on 3.3 V buffers: -0.5 to +4.6 V; (6)Ilu, latch-up current: 100 mA; (7)Vesd, electrostatic discharge voltage: -4000 to +4000 V; (8)Tstg, storage temperature: -40 to +125℃.

Features

ISP1521BE features: (1)Self-powered capability; (2)USB suspend mode support; (3)Configurable number of ports; (4)Internal power-on reset and low voltage reset circuit; (5)Port status indicators; (6)Integrates high performance USB interface device with hub handler, Philips Serial Interface Engine (SIE) and transceivers; (7)Built-in overcurrent detection circuit; (8)Individual or ganged power switching, individual or global overcurrent protection, and non-removable port support by I/O pins configuration; (9)Simple I2C-bus (master/slave) interface to read device descriptor parameters, language ID, manufacturer ID, product ID, serial number ID and string descriptors from a dedicated external EEPROM, or to allow the microcontroller to set up hub descriptors; (10)Visual USB traffic monitoring (GoodLink) for the upstream facing port; (11)Uses 12 MHz crystal oscillator with on-chip Phase-Locked Loop (PLL) for low ElectroMagnetic Interference (EMI); (12)Supports temperature range from -40 to +70℃; (13)Available in LQFP80 package..

Diagrams

ISP1521BE block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
ISP1521BE
ISP1521BE


IC USB HUB CONTROLLER HS 80-LQFP

Data Sheet

Negotiable 
ISP1521BE,518
ISP1521BE,518

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Data Sheet

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ISP1521BEUM
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Data Sheet

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ISP1521BE-S
ISP1521BE-S


IC USB HUB CONTROLLER HS 80-LQFP

Data Sheet

Negotiable