CD74HC151E

Signal Switches, Multiplexers, Decoders Overview

The CD74HC151E is an 8-input multiplexer manufactured by Harris Corporation, belonging to the 74HC logic series. It features eight binary data inputs (I0 through I7), three binary select inputs (S0 through S2), and a single enable input (E). The device routes one selected data input to complementary outputs Y and Y-bar. It operates within a supply voltage range of 2.0 V to 6.0 V and supports a maximum frequency of 38 MHz. The component is housed in a 16-pin Dual In-Line Package (PDIP) with a width of 0.300 inches (7.62 mm). It functions across an industrial temperature range of -55°C to +125°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Provides high-speed CMOS logic performance for efficient data routing applications
• Features wide power supply voltage compatibility ranging from 2.0 V to 6.0 V
• Includes built-in ESD protection exceeding 2000 V via HBM standards
• Offers complementary true and inverted outputs for flexible signal processing

Signal Switches, Multiplexers, Decoders Applications

• Phase Lock Loop (PLL) circuit implementations
• Clock generation and timing synchronization systems
• Frequency synthesis and digital signal routing tasks

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify manufacturer origin carefully as Harris Corporation assets were acquired by Texas Instruments. Confirm RoHS compliance status, as documentation indicates some variants may not meet current environmental regulations. Ensure the specific suffix matches the required package type and operating temperature range. Cross-reference datasheets to confirm functional equivalence with modern replacements if necessary.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a single 8-to-1 multiplexer is required within a 74HC family design. It is suitable for applications needing wide voltage operation and high noise immunity. Consider the 16-PDIP package for through-hole prototyping or legacy board designs. Verify that the 38 MHz speed rating meets the system's clock requirements.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the standard 74HC logic family, widely used in general-purpose digital electronics. The 74HC151 variant specifically handles 8-channel data selection. While originally produced by Harris, these components are often sourced through secondary markets or distributors holding legacy inventory after corporate restructuring.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The SN74HC151N from Texas Instruments serves as a direct functional substitute. Other compatible options include the CD74HC151M in SOIC packaging or the 74HC151PW from NXP Semiconductors. Ensure pinout compatibility and electrical specifications match before substitution.