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Analog Devices MAX3421EETJ+ — DC-DC Power Modules
Analog Devices

MAX3421EETJ+ USB Host/Peripheral Controller, SPI, 32-TQFN

MPNMAX3421EETJ+
End of Life

Analog Devices MAX3421EETJ+ USB peripheral/host controller, SPI interface, USB 2.0, 3V-3.6V supply, 15mA, 32-TQFN (5x5mm), -40°C to 85°C, Tube.

$16.25Ref. price · indicative, final on quote
Packaging32-WFQFN Exposed Pad
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

MAX3421EETJ+ Technical Specifications
ParameterValue
Voltage3V ~ 3.6V
Current - supply15mA
ProtocolUSB
InterfaceSPI
Operating temperature-40°C ~ 85°C
StandardsUSB 2.0
PackageTube
FunctionController
Case32-WFQFN Exposed Pad

Product details

SPI-to-USB bridge with dual-role host/peripheral capability

The MAX3421EETJ+ is a USB 2.0 controller that handles both host and peripheral roles through a simple SPI interface — no external PHY or transceiver needed beyond the USB connector and passives. The industrial temperature range (-40°C to 85°C) means this part can sit on a factory-floor PLC backplane or in an outdoor sensor hub without a heated enclosure.

The Tube packaging means this part ships in anti-static tubes of 60 or 75 units (typical QFN tube quantity) — not tape-and-reel, so factor in manual placement or a tube feeder if you're running high-volume pick-and-place.

ROHS3 compliant (exemption-free for all ten restricted substances), so it passes EU and UKCA material declarations without an exemption note.

Frequently asked questions

What is the SPI interface used for on this USB controller?

The SPI interface is the communication link between the host MCU and the MAX3421EETJ+. The MCU sends USB packets and control commands over SPI, and the controller handles the USB protocol on the other side — no parallel bus or external USB PHY required.

What compliance documentation does Analog Devices provide for MAX3421EETJ+?

Analog Devices provides ROHS3 compliance certification for the MAX3421EETJ+. The part is fully compliant with the EU RoHS directive without exemptions.