SN74145NS

Signal Switches, Multiplexers, Decoders Overview

The SN74145NS is a BCD-to-decimal decoder/driver from the Texas Instruments LS series, housed in a 16-pin Small Outline Package (SOP). It features inverted open-collector outputs and operates within a temperature range of 0 to 70 °C. The device accepts four binary-coded decimal inputs to activate one of ten active-low decimal outputs.

Signal Switches, Multiplexers, Decoders Feature Summary

• BCD-to-decimal decoding functionality with inverted logic
• Open-collector output configuration for flexible interfacing
• Standard plastic SOP-16 package construction

Signal Switches, Multiplexers, Decoders Applications

• Decoding binary-coded decimal signals for display drivers
• Selecting specific lines in digital control circuits
• Interface logic between microprocessors and peripheral devices

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify that the ordering suffix 'NS' corresponds to the standard plastic SOP-16 package variant. Confirm RoHS compliance status and lead finish specifications against current manufacturer documentation prior to procurement.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when an LS-series BCD-to-decimal decoder is required in a surface-mount format. Ensure the application supports open-collector outputs and operates within the specified commercial temperature limits.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the Texas Instruments 74LS logic family, designed for low-power Schottky TTL applications. It serves as a standard catalog decoder/driver, distinct from military or space-qualified variants such as the SN54145.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Compatible equivalents include SN74LS145N and SN74LS145NE4. Verify pinout compatibility and electrical characteristics before substitution.