USB 2.0 half-duplex transceiver at 12 Mbps
The Maxim Integrated MAX3451EEUD+ is a USB 2.0 half-duplex transceiver in a 14-TSSOP package, handling one driver and one receiver at a fixed data rate of 12 Mbps. It operates from a 3V to 3.6V supply rail and includes 250 mV of receiver hysteresis for noise rejection on the USB differential pair. The industrial temperature range (-40°C to 85°C) suits it for outdoor telecom, factory-floor USB hubs, and instrumentation ports that see thermal cycling.
Supply rail and signal margin
The 3V to 3.6V supply range maps directly to a 3.3V nominal rail with 300 mV of headroom on each side. If your system uses a 3.0V LDO, the transceiver still meets its full spec — no dropout concern. The 250 mV receiver hysteresis is a practical margin boost: on a noisy USB bus with long cables or shared ground returns, that hysteresis prevents false edge triggering that a zero-crossing comparator would see.
Active production — no LTB clock ticking
This part carries an Active lifecycle status. There is no last-time-buy notice, no NRND flag. For a BOM line that needs a USB 2.0 half-duplex transceiver, this is a straightforward fit without obsolescence risk. The ROHS3 compliance covers current reflow and lead-free assembly requirements.