SN74LVC244APWT

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC244APWT is an octal buffer and line driver manufactured by Texas Instruments, belonging to the LVC (Low-Voltage CMOS) logic family. It features eight non-inverting channels with three-state outputs, designed for operation within a supply voltage range of 1.65V to 3.6V. The device supports mixed-mode signal operations, allowing 5V tolerant inputs while operating at lower voltages. It is housed in a 20-pin TSSOP package with a maximum width of 4.40mm. Key electrical characteristics include output drive currents of ±24mA and a propagation delay typical of 5.9ns at 3.3V. The component operates across an extended temperature range from -40°C to +125°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight non-inverting buffered channels with three-state output control for efficient bus management.
• Supports mixed-mode signal operation, enabling compatibility between 5V input signals and 3.3V or lower power supplies.
• Incorporates Ioff functionality to prevent excessive current draw during hot-insertion or partial power-down scenarios.
• Delivers high-speed performance with low static power consumption suitable for battery-operated systems.

Buffers, Drivers, Receivers, Transceivers Applications

• Data bus buffering and driving in portable consumer electronics
• Clock distribution and signal conditioning in industrial control systems
• Memory interface drivers in computing and telecommunications equipment
• Asynchronous communication links requiring level shifting between different voltage domains

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'PWT' against official Texas Instruments documentation to confirm tape-and-reel packaging specifications and moisture sensitivity level. Ensure the ordered part matches the required operating temperature range and pinout configuration for your PCB layout. Cross-reference the manufacturer's latest datasheet revision to confirm RoHS compliance status and any recent design changes affecting pin definitions or electrical parameters.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits that require driving multiple loads from a single source while maintaining signal integrity across varying voltage levels. The LVC series offers a balance of speed and power efficiency ideal for modern low-voltage applications. Consider the TSSOP-20 package constraints regarding thermal dissipation and board space. Evaluate the need for three-state outputs to manage shared bus architectures effectively without additional external gating components.

Buffers, Drivers, Receivers, Transceivers Part Context

This device is part of the broader SN74LVC244 family, which includes variants with different packaging options such as SOIC and QFN. The LVC technology represents Texas Instruments' solution for low-voltage, high-speed digital logic applications. It serves as a standard interface component in systems transitioning from traditional 5V logic to 3.3V and 1.8V standards, ensuring backward compatibility while reducing overall system power consumption.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Compatible substitutes include SN74LVC244ADWR and SN74LVC244PWRE4. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution. Alternative packages like SOIC-20 may require footprint adjustments. Ensure replacement parts meet the same temperature and voltage specifications for reliable system operation.