SN74AHCT245RGYR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AHCT245RGYR is an octal bus transceiver with three-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports bidirectional data transmission between two buses. The device features TTL-compatible inputs, allowing it to translate voltages from 3.3 V up to 5 V. It utilizes a 20-pin VQFN package (RGY) with dimensions of 4.50 mm by 3.50 mm. The component provides latch-up performance exceeding 250 mA per JESD 17 and includes direction control (DIR) and output enable (OE) pins for managing signal flow.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides asynchronous two-way communication between data buses
• Features TTL-voltage compatible inputs for level translation
• Includes direction control and output enable functions

Buffers, Drivers, Receivers, Transceivers Applications

• Enable or disable digital signals
• Hold signals during controller resets
• Debounce switches

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'R' indicates tape and reel packaging configuration. Confirm the moisture sensitivity level rating matches the assembly requirements. Ensure the RoHS compliance status aligns with environmental regulations. Check the product lifecycle status as the RGY package variant may be designated as NRND in some documentation updates.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing 3.3 V logic sources with 5 V systems requiring octal width. The AHCT series ensures compatibility with standard TTL input thresholds. Consider the thermal resistance characteristics of the VQFN package for heat dissipation needs. Verify that the operating temperature range meets the environmental conditions of the target application.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4AHCT245 family of octal bus transceivers. It shares functional similarities with other variants like the SN74AHCT245DBR but differs in physical packaging. The RGY designation specifically identifies the 20-pin Very Small Quad Flat No-lead form factor. It serves as a bridge for parallel data paths in microcontroller and memory interfaces.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74AHCT245RKSR offers an alternative VQFN package option within the same family.