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SN74BCT640NSR is listed in the Buffers, Drivers, Receivers, Transceivers range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC TRANSCEIVER INVERT 5.5V 20SO. Review the specifications below when checking this part for your BOM.
The SN74BCT640NSR is an octal bus transceiver manufactured by Texas Instruments, featuring three-state outputs and inverting polarity. It operates within a supply voltage range of 4.5 V to 5.5 V and supports surface-mount installation in an SOIC-20 package. The device provides high-level output current of -32 mA and low-level output current of 64 mA, with a propagation delay of 10 ns. It functions reliably across an operating temperature range from 0°C to +70°C.
Verify the specific suffix 'NSR' corresponds to the tape-and-reel packaging format required for your assembly process. Confirm that the SOIC-20 footprint matches your PCB design guidelines. Ensure the commercial temperature range (0°C to +70°C) meets your environmental specifications before finalizing procurement.
Select this component when an inverting octal transceiver is required for 5V logic systems. It is suitable for applications needing bidirectional data transfer with three-state capability. Consider the 10 ns propagation delay and drive strength requirements against your system's timing constraints and load conditions.
This part belongs to the SN74BCT series, which bridges bipolar and CMOS technologies. It shares the SOIC-20 package form factor with other octal logic devices like the SN74ABT540. The BCT series is designed for high-speed performance while maintaining compatibility with standard TTL and CMOS logic families.
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