SN74BCT245DBR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74BCT245DBR is an octal bus transceiver from the BCT logic family, manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features three-state outputs. The device provides bidirectional data transmission across eight channels with non-inverting polarity. It utilizes SSOP-20 surface-mount packaging and supports operation temperatures from 0°C to +70°C. Key electrical characteristics include a maximum propagation delay of 13 ns at 5 V, high low-level output current capability of 64 mA, and a maximum high-level output current of -15 mA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bidirectional data transfer between two buses controlled by direction input
• Three-state outputs allowing effective bus isolation when disabled
• High drive strength suitable for driving heavy capacitive loads
• Compatible with standard CMOS logic levels

Buffers, Drivers, Receivers, Transceivers Applications

• Mobile applications requiring low power and high speed
• Clock drivers and buffer circuits
• Memory and address bus drives
• Capacitive bus switching

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DBR' corresponds to the SSOP-20 tape and reel packaging configuration. Confirm that the 0°C to +70°C commercial temperature range meets the operational requirements, as industrial variants may carry different suffixes. Ensure compatibility with existing PCB footprints for the SSOP-20 package dimensions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a robust 5V octal transceiver with high current drive is required. The BCT technology offers faster switching speeds compared to standard LS or HC families while maintaining CMOS compatibility. Consider the 64 mA low-level sink capability for applications involving significant bus capacitance or long trace lengths.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74BCT series, which combines BiCMOS technology for high speed with CMOS input/output characteristics. It serves as a bridge between legacy 5V systems and modern low-voltage interfaces where moderate speed and high drive are necessary without the complexity of level shifters.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74BCT245DW (SOIC-20 package), SN74BCT245N (DIP-20 package). Verify pinout compatibility and thermal performance differences associated with alternative package types.