NJU4051BD

Overview

The NJU4051BD is a single 8-channel multiplexer featuring three binary control inputs and an inhibit input. It connects one of eight channels to a common output based on control signals. The device operates within a supply voltage range of 3V to 18V. Key electrical parameters include a maximum quiescent current of 600µA at VDD=5V, a maximum on-state resistance of 600Ω at VDD=5V, and a channel leakage current of ±1000nA. Switching times are limited to 500ns for both turn-on and turn-off. The component utilizes C-MOS technology and is housed in a 16-DIP package with a width of 0.300 inches (7.62mm).

Feature Summary

• Single 8-channel multiplexer architecture with three binary control inputs and an inhibit function.
• Wide operating voltage range supporting 3V to 18V supply levels.
• C-MOS technology implementation ensuring low power consumption characteristics.

Applications

• Signal routing in data acquisition systems
• Multiplexing analog or digital signals in measurement equipment
• Channel selection in communication interfaces

Procurement Notes

Verify the specific package variant during procurement as the DIP16 configuration is designated as Not Recommended for New Design (NRND) by the manufacturer since February 2023. Confirm that the ordering suffix BD corresponds to the DIP16 package type. Ensure compatibility with existing board layouts if replacing older designs, as alternative packages such as DMP or SSOP may be available for new implementations.

Selection Notes

Select this component when an 8-channel multiplexer is required with a wide supply voltage range up to 18V. Consider the on-state resistance specifications which vary with supply voltage; lower resistance values are achieved at higher voltages like 15V. Verify that the 16-DIP package fits the assembly constraints, noting the NRND status of this specific package form factor for future-proofing design requirements.

Part Context

The NJU4051B series serves as a CMOS-compatible alternative to legacy devices such as the RCA CD4051B and Motorola MC14051B. It provides standard multiplexing functionality within the Nisshinbo Micro Devices portfolio. The BD suffix specifically denotes the 16-pin Dual In-line Package (DIP) variant, distinguishing it from other package options like DMP or SSOP available in the same functional family.

Replacement Considerations

Direct equivalents include the RCA CD4051B and Motorola MC14051B. For new designs, consider alternative packages from the NJU4051B family such as NJU4051BM or NJU4051BV, as the DIP16 version is marked as Not Recommended for New Design.

FAQ

What is the maximum on-state resistance at a 5V supply?

At a supply voltage (VDD) of 5V, the maximum on-state resistance (Ron) is 600Ω.

How does the inhibit input affect operation?

When the inhibit input is high, all channels are turned off regardless of the state of the binary control inputs A, B, and C.

Is the DIP16 package recommended for new designs?

No, the DIP16 package (NJU4051BD) is designated as Not Recommended for New Design (NRND) as of February 2023.