74LV251D,112

Signal Switches, Multiplexers, Decoders Overview

The NXP USA Inc. 74LV251D,112 is an 8-input multiplexer with 3-State outputs housed in a 16-pin Plastic SO package (SOT109-1). It operates within a DC supply voltage range of 1.0 V to 3.6 V and supports an ambient temperature range of -40°C to +125°C. The device features true and complement outputs that enter a high impedance OFF-state when the output enable input is HIGH. Propagation delays from inputs to outputs typically range from 14 ns to 20 ns at 3.3 V with a 15 pF load.

Signal Switches, Multiplexers, Decoders Feature Summary

• Provides multifunction capability by selecting one bit of data from up to eight sources
• Features both assertion and negation outputs for flexible logic design
• Allows multiplexer expansion by tying outputs together via 3-State control

Signal Switches, Multiplexers, Decoders Applications

• Data routing in digital systems
• Universal function generation
• Multiplexing multiple signal lines to a single destination

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix matches the required package type, as the 74LV251 series includes DIL, SSOP, and TSSOP variants. Confirm the manufacturer designation aligns with current Nexperia or NXP branding standards. Ensure the component meets RoHS compliance requirements for your assembly process. Check for any product change notices regarding pinout or electrical characteristics updates.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component for low-voltage applications requiring compatibility with TTL input levels between 2.7 V and 3.6 V. It serves as a pin and function compatible replacement for 74HC/HCT251 devices. Consider the standard output capability and MSI classification for general-purpose logic designs. Evaluate power dissipation constraints based on the plastic SO package thermal characteristics.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74LV series of low-voltage CMOS logic devices. It is functionally equivalent to other 8-channel multiplexers in the industry but optimized for operation down to 1.0 V. The device is manufactured using Si-gate CMOS technology to ensure low static power consumption while maintaining high-speed performance suitable for modern digital interfaces.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Public confirmed substitute part numbers include 74LV251N, 74LV251DB, and 74LV251PW.