SN74AHCT245DWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AHCT245DWR is an octal bus transceiver with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes SOIC-20 packaging. The device features TTL-voltage compatible inputs, allowing for effective level translation from 3.3 V to 5 V systems. Key electrical parameters include a propagation delay of 1 ns to 10 ns depending on load conditions, output drive currents of ±8 mA, and low quiescent current. It supports bidirectional data transmission controlled by DIR and OE pins.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• TTL-voltage compatible inputs facilitate seamless integration with legacy logic families
• Bidirectional data transfer capability between two independent 8-bit buses
• Low drive characteristics minimize output ringing and overshoot on high-speed lines

Buffers, Drivers, Receivers, Transceivers Applications

• Enable or disable digital signals in complex bus architectures
• Hold signal states during controller reset sequences
• Debounce mechanical switches in input circuits

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant (DW) against the orderable addendum to ensure compatibility with existing PCB footprints. Confirm RoHS compliance status and lead finish specifications (NIPDAU) required for your assembly process. Check the moisture sensitivity level rating to determine storage and handling requirements before soldering.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing 3.3 V logic sources with 5 V buses due to its specific input threshold levels. Ensure the application requires standard CMOS drive strength rather than high-current capabilities found in F-series devices. Verify that the operating temperature range meets the environmental constraints of the final system design.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4AHCT245 family of octal bus transceivers designed for asynchronous communication. It serves as a bridge between different voltage domains while maintaining signal integrity through controlled edge rates. The device is widely used in microprocessor-based systems requiring robust data bus management.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74AHC245DWR offers similar functionality but with different voltage thresholds suitable for pure CMOS applications rather than TTL-compatible interfaces.