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Microchip Technology USB5742B-I/2G — Discrete Semiconductors

Microchip USB5742B-I/2G USB 3.2 Hub Controller, 2-Port

MPNUSB5742B-I/2G
End of Life

Microchip Technology USB5742B-I/2G Hub Controller, USB 2.0 / USB 3.2, SMBus, SPI interface, 56-VFQFN Exposed Pad, Tray.

$7.06Ref. price · indicative, final on quote
Microchip Technology USB5742B-I/2G datasheet (PDF)
Packaging56-VFQFN Exposed Pad
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

USB5742B-I/2G specifications
ParameterValue
Supply voltage1.08V ~ 1.32V, 3V ~ 3.6V
ProtocolUSB
InterfaceSMBus, SPI
Operating temperature-40°C ~ 85°C (TA)
StandardsUSB 2.0, USB 3.2
PackageTray
FunctionHub Controller
Case56-VFQFN Exposed Pad

Product details

Two-port USB 3.2 hub controller in a 7x7 QFN

The USB5742B-I/2G is a two-port USB hub controller from Microchip that supports both USB 2.0 and USB 3.2 Gen 1 — the 5 Gbps SuperSpeed lane plus the legacy 480 Mbps path live on the same downstream port. It talks to the upstream host over SMBus or SPI for configuration, which is the typical hook for an embedded system that needs to enumerate the hub's topology at boot without a dedicated EEPROM.

Supplied in tray packaging, which is the standard for pick-and-place lines that run QFN strips — no reel fee, but the tray count sets the minimum order increment.