All prices are in US dollars.
Digi-Key Part Number 638-1103-ND
Price Break Unit Price Extended Price
1 1.82000 1.82
25 1.51000 37.75
100 1.38000 138.00
Quantity Available Digi-Key Stock: 2,712
Can ship immediately

Manufacturer Part Number


Description IC USB 2.0 2PORT HUB CTLR 36QFN
Lead Free Status / RoHS Status Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)

Quantity Item Number ? Customer Reference

When requested quantity exceeds displayed pricing table quantities, a lesser unit price may appear on your order.
You may submit a request for quotation on quantities which are greater than those displayed in the pricing table.

Datasheets USB251xB/xBi
Product Photos 36-QFN
PCN Design/Specification 36L-QFN Sawn Update 22/Dec/2014
USB251x Datasheet Revision 21/Apr/2015
Errata-Document Revision 29/Sep/2015
USB251xB/USB25xBi HiSpeed Hub Datahsheet Rev 11/Nov/2015
PCN Assembly/Origin Qualification Assembly Site 19/Mar/2014
Fabrication Site Addition 17/Dec/2014
SCC Site Qualification 20/Apr/2015
PCN Packaging Label and Packing Changes 23/Sep/2015
EDA / CAD Models ? Download from Accelerated Designs
Standard Package ? 490

Integrated Circuits (ICs)


Interface - Controllers

Series -
Packaging ? Tray?
Protocol USB
Function Hub Controller
Interface USB
Standards USB 2.0
Voltage - Supply 3 V ~ 3.6 V
Current - Supply 60mA
Operating Temperature 0°C ~ 85°C
Package / Case 36-VFQFN Exposed Pad
Supplier Device Package 36-QFN (6x6)
Online Catalog USB Controllers
Other Names 638-1103
Alternate Package | This part is also available in the following packaging:
Digi-Key Part Number Manufacturer Part Number Manufacturer Packaging Quantity Available Unit Price Minimum Quantity
USB2512B-AEZG-TR-ND USB2512B-AEZG-TR Microchip Technology Tape & Reel (TR)? 0
1.46999 3,000
USB2512B-AEZG-CT-ND USB2512B-AEZG-TR Microchip Technology Cut Tape (CT)? 1,151 - Immediate
1.94000 1
USB2512B-AEZG-DKR-ND USB2512B-AEZG-TR Microchip Technology Digi-Reel®? 1,151 - Immediate
Digi-Reel® 1

Tape & Reel, Cut Tape and Digi-Reels are all derived from the same manufacturer’s part number. Inventory from Tape & Reel is used to fulfill Cut Tape and Digi-Reel orders and will impact the total quantity available.

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23:23:06 4/30/2016