SN74LVC1G139DCUT

Overview

The SN74LVC1G139DCUT is a single 2-to-4 line decoder manufactured by Texas Instruments. It operates within a supply voltage range of 1.65V to 5.5V and supports an operating temperature range from -40°C to +85°C. The device features active-low outputs with low ON-state output impedance for driving capacitive loads. It utilizes a VSSOP-8 package measuring 2.00mm x 2.30mm with a height of 0.90mm. The component belongs to the 74LVC logic family and includes two address inputs, four data outputs, and two enable inputs.

Feature Summary

• Provides decoding functionality for converting two binary address bits into one of four active-low data outputs
• Features dual enable inputs that allow flexible control over decoder activation states
• Maintains low ON-state output impedance to effectively drive capacitive loads without signal degradation

Applications

• Memory address decoding in embedded systems
• Chip select generation for peripheral devices
• Power management circuit control logic

Procurement Notes

Verify the specific suffix DCUT indicates tape and reel packaging configuration distinct from standard tray or tube formats. Confirm the moisture sensitivity level and reflow soldering profile requirements align with your assembly process specifications. Ensure the active-low output polarity matches your system design requirements before integration.

Selection Notes

Select this component when a single high-speed decoder is required in a compact surface-mount footprint. The wide voltage range supports both low-power and standard logic interfaces. Verify that the two-enable input architecture fits your control scheme compared to simpler single-enable alternatives.

Part Context

This part belongs to the Texas Instruments SN74LVC1G series of single-function logic devices. The LVC family offers compatibility with various logic families while providing improved switching speeds. The VSSOP-8 package provides a space-efficient solution for dense printed circuit board layouts requiring minimal component area.

Replacement Considerations

Direct substitutes include other SN74LVC1G139 variants such as SN74LVC1G139DCKR or SN74LVC1G139DCUR, differing primarily in packaging format. Cross-brand equivalents like Toshiba TC7W139F may require verification of pinout and electrical parameter compatibility.