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The IDT 402245K is a dual-marked interface transceiver IC, functionally equivalent to the 54FCT645DB. It serves as a serial communication bus transceiver manufactured by Integrated Device Technology (IDT). The component operates within a standard industrial temperature range and is supplied in bulk packaging designed to protect against moisture and mold growth during storage.
Verify that the received unit matches the dual marking of 402245K and 54FCT645DB. Confirm the manufacturer is Integrated Device Technology or an authorized licensee. Ensure the bulk packaging integrity remains intact to prevent moisture ingress prior to installation.
Select this component when a dual-interface transceiver compatible with the 54FCT645DB specification is required. Consider its suitability for environments where moisture resistance is critical due to the specific bulk packaging design intended to shield internal components from humidity and biological growth.
This part belongs to the family of interface transceivers produced by Integrated Device Technology. It shares functional characteristics with other FCT series devices but is specifically identified by the dual marking system. The component supports serial communication protocols commonly used in legacy and industrial digital systems.
The 54FCT645DB is the confirmed substitute part number indicated by the dual marking on the component body.