SN74LVC244ADBR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC244ADBR is an octal buffer and line driver from Texas Instruments, belonging to the LVC logic series. It features eight non-inverting inputs with three-state outputs, designed for operation within a supply voltage range of 1.65 V to 3.6 V. The device supports mixed-mode signal operations, allowing 5-V tolerant inputs while operating at lower voltages. Key electrical characteristics include a maximum low-level output current of 24 mA and a high-level output current of -24 mA. Propagation delay is specified as 6.7 ns at 2.7 V and 5.7 ns at 3.3 V. It operates over a temperature range of -40°C to +85°C and is housed in a 20-pin SSOP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight non-inverting buffered channels with three-state output control for efficient data bus management.
• Supports mixed-mode signal operations, enabling compatibility between 5-V devices and 3.3-V systems through 5-V tolerant inputs.
• Incorporates Ioff circuitry to prevent excessive current draw during partial-power-down or hot-insertion events.

Buffers, Drivers, Receivers, Transceivers Applications

• Data bus-oriented communications systems requiring signal buffering.
• Clock distribution networks for driving multiple loads.
• Memory module address and data bus drivers.

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DBR' corresponds to the SSOP-20 package and tape-and-reel shipping configuration. Confirm RoHS compliance status and lead times directly with authorized distributors, as manufacturing schedules are subject to change. Ensure the application environment remains within the specified -40°C to +85°C operating temperature range for reliable performance.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing low-voltage systems requiring high drive capability and input tolerance. The LVC series offers faster switching speeds compared to standard HC/HCT logic while maintaining lower power consumption. Consider the SSOP-20 package constraints for PCB layout and thermal management requirements relative to alternative packages like SOIC or TSSOP.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVC244 family of octal buffers. It shares functional similarities with other Texas Instruments logic families such as AHC and ALVC but is optimized for the 1.65-V to 3.6-V supply range. The LVC technology provides a balance of speed and power efficiency suitable for portable and battery-operated applications.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct pin-compatible alternatives include SN74LVC244ADW (SOIC-20) and SN74LVC244APWR (TSSOP-20). Verify that substitute parts maintain the same 3.6-V maximum rating and 5-V input tolerance specifications.