SN74LVCH245AGQNR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVCH245AGQNR is an octal bus transceiver from Texas Instruments featuring three-state outputs. It operates within a supply voltage range of 2 V to 3.6 V and supports TTL/CMOS input levels with LVTTL output levels. The device provides bidirectional data transmission with a propagation delay of 7 ns. It is housed in a 20-pin VQFN package and functions as a non-inverting logic circuit. The component is rated for industrial temperatures, operating between -40°C and +85°C, and delivers a low-level output current of 24 mA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bus transceiver architecture enabling eight-bit bidirectional data transfer
• Three-state outputs allowing direct connection to bus lines without additional drivers
• Compatible with mixed 1.8-V, 2.5-V, and 3.3-V environments via LVCH technology

Buffers, Drivers, Receivers, Transceivers Applications

• Memory mapping control circuits
• Clock drivers and buffered oscillators
• Bidirectional bus interfaces in embedded systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'GQNR' against the manufacturer's official datasheet to confirm the exact package type and temperature grade. Ensure compatibility with existing PCB footprints for the VQFN-20 configuration. Check for end-of-life status or obsolescence notices prior to finalizing procurement plans.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring robust bidirectional data flow between different voltage domains. The LVCH series offers improved performance over standard LVC devices while maintaining pin-to-pin compatibility. Consider the 20-pin VQFN package constraints regarding thermal dissipation and board space availability during layout.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVCH245A family of octal bus transceivers. It shares functional similarities with other members like the SN74LVC245AZQNR but utilizes LVCH technology for enhanced speed and lower power consumption. The QNR suffix typically denotes a specific tape-and-reel packaging format suitable for automated surface-mount assembly processes.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include SN74LVCH245ADWR and SN74LVCH245ARGYRG4. Verify package dimensions and pinout alignment before substitution. Alternative families such as SN74AHC245 offer similar functionality but may require voltage level adjustments.