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The XRT91L31IQTR-F is a SONET/SDH transceiver manufactured by MaxLinear, designed for high-speed telecommunications interfaces. It supports data rates of 622.08 Mb/s and 155.52 Mb/s, corresponding to OC-12/STM-4 and OC-3/STM-1 standards respectively. The device operates on a single 3.3 V power supply with a voltage range of 3.135 V to 3.465 V. It features nine channels and is housed in a PQFP-64 surface-mount package. The component is rated for an industrial operating temperature range from -40°C to +85°C.
The XRT91L31IQTR-F is listed as an End-of-Life (EOL) product by the manufacturer. Availability is restricted, and distributors may not stock this item in all regions. Verification of current supply status and alternative sourcing options is required before procurement planning.
Select this component for applications requiring OC-12 or OC-3 SONET/SDH physical layer connectivity. Ensure the design accommodates the 3.3 V supply requirement and the PQFP-64 footprint. Verify that the -40°C to +85°C temperature range meets the environmental specifications of the target system.
This part belongs to the XRT91L31 series of telecom interface ICs. It is functionally related to the XRT91L30IQ but differs in specific configuration or packaging suffixes. The 'TR' in the model number indicates tape-and-reel packaging, distinct from the tray-packaged XRT91L31IQ.
As an EOL product, direct substitutes are limited. Review the XRT91L30IQ for potential pin-compatible alternatives within the same family, though functional verification is necessary. Consult MaxLinear for recommended obsolescence management strategies.