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The MAXIM 78Q2133S/F is a MicroPHY Fast Ethernet transceiver supporting 10BASE-T and 100BASE-TX standards. It integrates MII, ENDECs, scrambler/descrambler, dual-speed clock recovery, and auto-negotiation functions. The device operates from a single 3.3V ± 0.3V supply with typical power consumption of approximately 290mW. It supports data rates up to 100Mbps and features an adaptive equalizer for accurate clock and data recovery. The component is rated for industrial operation within a temperature range of -40°C to +85°C.
Verify the specific ordering suffix against official documentation to confirm package type and temperature rating. Confirm that the 'S' and 'F' designations align with the required industrial specifications. Ensure compatibility with the intended MAC interface before procurement.
Select this model for applications requiring an industrial temperature range (-40°C to +85°C). Compare against the 78Q2123 if commercial temperature range (0°C to 70°C) is sufficient. Verify that the 32-QFN or 32-TQFN package fits the PCB layout constraints.
This component belongs to the MicroPHY family of Fast Ethernet transceivers. It is designed as a compact solution for embedded Ethernet markets, offering integrated PHY functions in a small footprint. The 78Q2133 variant specifically targets industrial environments compared to its commercial counterpart.
The 78Q2123 is a direct functional substitute with a different temperature rating. Verify package compatibility when substituting between QFN and TQFN variants.