SN74LVC1G18DCKR

Overview

The SN74LVC1G18DCKR is a single 1-to-2 demultiplexer from Texas Instruments, part of the SN74LVC1Gxx series. It operates within a supply voltage range of 1.65 V to 5.5 V and supports input levels compatible with both TTL and CMOS standards. The device features low static current consumption and provides high drive capability with output currents of ±32 mA. It is housed in a compact SC-70 (SOT-353) five-pin surface-mount package, designed for space-constrained applications requiring efficient signal routing.

Feature Summary

• Single-channel demultiplexer architecture directing one input to one of two outputs based on address selection
• Wide operating voltage compatibility supporting systems from 1.65 V to 5.5 V
• Low power consumption characteristics suitable for battery-operated portable devices
• High noise immunity and robust output drive capabilities for reliable signal integrity

Applications

• Data routing in embedded control systems
• Address decoding in memory interfaces
• Signal distribution in communication modules
• Power management circuitry for selective load activation

Procurement Notes

Verify the specific suffix 'DCKR' corresponds to the SC-70-5 package and reel tape packaging configuration. Confirm RoHS compliance status and moisture sensitivity level (MSL) ratings prior to integration into PCB assembly processes. Ensure ordering documentation matches the exact manufacturer part number to avoid substitution errors with similar logic families or pin-compatible alternatives.

Selection Notes

Select this component when a single-channel demux function is required in minimal footprint designs. The LVC series offers superior speed-power trade-offs compared to older logic families. Consider the 1.65 V minimum supply for low-voltage operation and verify that the SC-70 package dimensions align with the board layout constraints. Ensure input voltage levels match the system's logic thresholds for proper addressing functionality.

Part Context

This device belongs to the SN74LVC1Gxx family of single-function logic ICs from Texas Instruments. The LVC (Low Voltage CMOS) technology ensures compatibility with modern low-voltage digital systems while maintaining performance. The '1G' designation indicates a single gate or function per package, optimizing board space. This specific model implements demultiplexing logic, distinguishing it from buffers, inverters, or standard gates within the same series.

Replacement Considerations

Check for direct cross-references such as SN74LVC1G18DCKT or SN74LVC1G18DSFR if different packaging options are needed. Verify pinout compatibility before substituting with other demultiplexer variants like the SN74LVC1G19, which shares similar logical functions but may differ in electrical specifications or package types.