SN74LVC244ADWE4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC244ADWE4 is an octal buffer and line driver from Texas Instruments, belonging to the LVC logic family. It features eight non-inverting channels 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 powered by 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 at 6.7 ns at 2.7 V and 5.7 ns at 3.3 V. It operates over an extended temperature range from -40°C to +125°C and is housed in a 20-pin SOIC package.

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 operations, enabling compatibility between 5-V input signals and lower voltage power supplies.
• Includes Ioff circuitry to prevent excessive current draw during hot-insertion or partial power-down scenarios.

Buffers, Drivers, Receivers, Transceivers Applications

• Data bus buffering and line driving in embedded systems
• Clock distribution and signal buffering in consumer electronics
• Interface bridging between different voltage domains in industrial equipment

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the E4 suffix indicates lead-free construction compliant with RoHS standards. Confirm the specific package variant matches design requirements, as the base model may offer alternative housing options. Ensure the ordering part number aligns with the required tape-and-reel or tube packaging configuration for manufacturing integration.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits requiring low-voltage operation with high noise immunity and fast switching speeds. The LVC series offers superior performance compared to standard CMOS logic at reduced voltages. Consider the 5-V tolerance feature if interfacing with legacy 5-V peripherals without additional level shifting components.

Buffers, Drivers, Receivers, Transceivers Part Context

This device is part of the broader SN74LVC244A family of octal buffers. It shares functional similarities with other LVC series drivers but is distinguished by its specific pinout and package configuration. The E4 suffix typically denotes environmental compliance modifications within the same functional specification.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC244ADW serves as a direct functional equivalent without the environmental suffix. SN74LVC244APW provides identical functionality in a TSSOP-20 package. SN74LVCH244ADWRE4 offers similar buffering capabilities with potential differences in internal hysteresis characteristics.