SN74LVCH244ARGYR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVCH244ARGYR is an octal buffer and line driver manufactured by Texas Instruments, belonging to the LVCH logic family. It features eight non-inverting channels with three-state outputs, designed for low-voltage operation between 1.65 V and 3.6 V. The device utilizes a 20-pin VQFN package (ARGY) and supports mixed-mode signal operations, allowing compatibility with 5-V inputs while operating at lower supply voltages. Key electrical characteristics include a maximum propagation delay of 7 ns and output drive currents of ±24 mA. It operates within a temperature range of -40°C to +85°C and includes Ioff circuitry to prevent excessive current draw during hot-insertion events.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight-channel buffering with three-state outputs for efficient bus management
• Supports mixed-mode signal operations enabling 5-V tolerant input interfaces
• Incorporates Ioff functionality to facilitate safe hot-insertion and partial power-down modes

Buffers, Drivers, Receivers, Transceivers Applications

• Memory module data bus buffering
• Clock distribution networks
• Control signal routing in embedded systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix to confirm the package type and tape-and-reel quantity. Ensure the voltage supply requirements align with the 1.65 V to 3.6 V operational range. Confirm RoHS compliance status and moisture sensitivity level prior to assembly planning. Cross-reference the datasheet revision date to ensure all electrical parameters match the design specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing low-voltage systems requiring high-density buffering with minimal power consumption. The LVCH series offers optimized performance for 1.8-V and 2.5-V applications compared to standard LVC devices. Consider the VQFN package for space-constrained PCB layouts. Verify that the 5-V input tolerance meets the interface requirements of upstream components without additional level shifting.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments SN74LVCH244A family of octal buffers. It shares functional similarities with the SN74LVC244 but is optimized for lower voltage swings typical of modern portable electronics. The ARGY suffix denotes a 20-lead Very Thin Quad Flat No-Lead package, distinguishing it from SOIC or TSSOP variants within the same logical family.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include other SN74LVCH244 variants with different packaging such as SN74LVCH244ADWR or SN74LVCH244PWRE4. Ensure pinout compatibility and thermal performance meet the application requirements when swapping package types.