SN74LVC257ADT

Overview

The SN74LVC257ADT is a quadruple 2-line to 1-line data selector and multiplexer with 3-state outputs. It operates from 1.65V to 3.6V VCC. The device features a maximum propagation delay of 4.6ns at 3.3V. Inputs accept voltages up to 5.5V, enabling use as translators in mixed voltage systems. It provides latch-up performance exceeding 250mA per JESD 17 and ESD protection exceeding 2000V human-body model.

Feature Summary

• Operates from 1.65V to 3.6V supply voltage
• Inputs accept voltages up to 5.5V for level translation
• Maximum propagation delay of 4.6ns at 3.3V
• Latch-up performance exceeds 250mA per JESD 17

Applications

• Cable Modem Termination Systems
• Tests and Measurements
• I/O Expanders
• Motor Drivers
• Network Switches

Procurement Notes

Verify the specific package type associated with the 'DT' suffix against official Texas Instruments documentation before procurement. Confirm that the ordering information matches the required thermal and mechanical specifications for your design implementation. Ensure compatibility with your manufacturing process requirements.

Selection Notes

Select this component when designing bus-organized systems requiring signal multiplexing from 4-bit data sources. It is suitable for applications needing high-speed operation with low power consumption. Consider its ability to interface between 3.3V and 5V devices if level translation is required within the system architecture.

Part Context

This device belongs to the SNx4LVC257A family of quadruple 2-line to 1-line data selectors and multiplexers. These devices are designed for 1.65V to 3.6V VCC operation and feature 3-state outputs that do not load data lines when the output-enable input is high. They are intended for use in various digital logic applications.

Replacement Considerations

SN74LVC257ADR

FAQ

What is the maximum propagation delay of the SN74LVC257ADT?

The maximum propagation delay is 4.6ns at 3.3V.

Can the inputs be driven by 5V devices?

Yes, the inputs accept voltages up to 5.5V, allowing them to be driven by 5V devices.