SN74F153DBR

Overview

The SN74F153DBR is a dual 1-of-4 data selector/multiplexer from the Texas Instruments F/FAST logic series. It features two independent multiplexing sections, each with four data inputs (C0–C3) and one output (Y), sharing common select lines A and B. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range of 0°C to 70°C. It utilizes a 16-pin Small-Outline Package (SOIC).

Feature Summary

• Performs parallel-to-serial conversion by selecting one of four data inputs based on binary address signals.
• Includes separate strobe (enable) inputs for each section to facilitate cascading operations.
• Integrates inverters and drivers to provide full binary decoding for the AND-OR gate structure.

Applications

• Multiplexing multiple data lines into a single transmission path.
• Implementing combinational logic functions through data selection.
• Parallel-to-serial data conversion in digital communication systems.

Procurement Notes

Verify that the ordering suffix 'DR' corresponds to the SOIC package and tape-and-reel carrier format. Confirm RoHS compliance status and lead finish specifications against the latest TI Package Option Addendum. Ensure the selected variant matches the required commercial temperature range and pinout configuration for your PCB layout.

Selection Notes

Select this component when designing circuits requiring dual independent 4-to-1 multiplexing within the F/FAST logic family. Consider the shared select input architecture for simplified addressing. Evaluate the propagation delay characteristics relative to system timing requirements and ensure the package dimensions fit the available board space constraints.

Part Context

This part belongs to the SN74F153 family of dual 1-of-4 data selectors. The 'SN74' prefix indicates standard commercial grade operation, while the 'F' denotes the FAST logic family known for high-speed performance. The 'DBR' suffix specifies the plastic small-outline package type and reel packaging method used for surface-mount assembly.

Replacement Considerations

Compatible substitutes include SN74F153DR and SN74F153DRG4. Verify pin compatibility and electrical parameters before substitution. Other variants such as SN74HC153 offer different speed and voltage characteristics but may not be direct replacements without circuit modification.