M74HC151B1R

Overview

The M74HC151B1R is an 8-channel multiplexer from the STMicroelectronics 74HC series, housed in a 16-pin Plastic DIP package. It operates on a single supply voltage ranging from 2V to 6V and supports an operating temperature range of -55°C to +125°C. The device features symmetrical output impedance with minimum drive capabilities of 4mA for both high and low states. Typical propagation delay is 17ns at 6V supply, while maximum quiescent current is 4μA at 25°C.

Feature Summary

• Provides selection of one bit of data from up to eight independent sources within a single integrated circuit package.
• Features complementary outputs (Y and W) controlled by three address inputs and a strobe input for device enablement.
• Incorporates protection circuits against static discharge and transient excess voltage on all inputs.

Applications

• Universal function generator for logic functions of four variables
• Data routing and signal selection systems
• Parallel-to-serial conversion applications

Procurement Notes

Verify that the component matches the specific 16-pin Plastic DIP package configuration required for your design. Confirm the ordering code corresponds to the tube packaging format indicated in the datasheet. Ensure compatibility with the specified 2V to 6V operating voltage range and check that the -55°C to +125°C temperature rating meets your environmental requirements before finalizing procurement.

Selection Notes

Select this component when an 8-input multiplexing solution is required with wide voltage flexibility between 2V and 6V. The 74HC series offers balanced propagation delays and high noise immunity suitable for general-purpose digital logic. Consider the DIP-16 package if through-hole mounting is necessary for the application environment.

Part Context

This part belongs to the M74HC151 family of high-speed CMOS 8-channel multiplexers fabricated using silicon gate C2MOS technology. It maintains pin and function compatibility with standard 74LS151 devices while providing true CMOS low power consumption characteristics. The family includes various package options such as SOP and TSSOP for different mounting needs.

Replacement Considerations

The datasheet indicates pin and function compatibility with the 74LS151 series. Designers should verify voltage level shifting requirements when replacing LS logic with HC logic due to differing input threshold voltages.