STMicroelectronics

M74HC4051B1R

M74HC4051B1R Description

The M74HC4051B1R is an 8:1 multiplexer/demultiplexer IC designed by STMicroelectronics, a leading manufacturer in the semiconductor industry. This component is housed in a through-hole package, specifically a 16-pin DIP (Dual In-line Package), making it suitable for applications requiring robust mechanical stability and ease of integration on printed circuit boards (PCBs). Despite its obsolete status, the M74HC4051B1R remains a popular choice for various applications due to its reliable performance and comprehensive feature set.

M74HC4051B1R Features

• Multiplexer/Demultiplexer Circuit: The M74HC4051B1R features an 8:1 multiplexer/demultiplexer circuit, allowing it to switch between eight input/output lines and a single common line. This capability is essential for applications requiring signal routing and selection.
• Low On-State Resistance: With a maximum on-state resistance (Ron) of 100 ohms, the M74HC4051B1R ensures minimal signal attenuation and power loss, making it suitable for high-current applications.
• Channel-to-Channel Matching: The device offers excellent channel-to-channel matching with a ΔRon of 5 ohms, ensuring consistent performance across all channels.
• Low Leakage Current: The maximum leakage current (IS(off)) is rated at 100nA, which is crucial for maintaining signal integrity and reducing power consumption in low-power applications.
• Wide Supply Voltage Range: The M74HC4051B1R operates within a wide supply voltage range of ±2V to ±6V for dual supply and 2V to 6V for single supply, providing flexibility in power supply design.
• High Switching Speed: The switch time (Ton, Toff) is maximized at 18ns and 29ns, respectively, enabling rapid signal switching and high-frequency operation.
• High Bandwidth: With a -3dB bandwidth of 200MHz, the M74HC4051B1R is well-suited for high-frequency applications, ensuring minimal signal distortion.
• Low Channel Capacitance: The channel capacitance (CS(off), CD(off)) is rated at 2pF and 10pF, respectively, which helps in maintaining high signal integrity and reducing signal delay.
• Compliance and Packaging: The M74HC4051B1R is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards. It is available in a tube package, facilitating easy handling and storage.

M74HC4051B1R Applications

The M74HC4051B1R is ideal for a wide range of applications due to its versatile features and robust performance. Some specific use cases include:

• Analog Signal Routing: The 8:1 multiplexing capability makes it suitable for routing analog signals in data acquisition systems, test and measurement equipment, and sensor interfaces.
• High-Frequency Applications: With a -3dB bandwidth of 200MHz, it is well-suited for high-frequency signal processing in communication systems and RF applications.
• Low-Power Applications: The low leakage current and wide supply voltage range make it ideal for battery-powered devices and portable electronics.
• Industrial Control Systems: The robust through-hole package and high switching speed ensure reliable performance in industrial control systems and automation equipment.

Conclusion of M74HC4051B1R

In summary, the M74HC4051B1R is a versatile and reliable 8:1 multiplexer/demultiplexer IC that offers a comprehensive set of features suitable for a wide range of applications. Its low on-state resistance, high switching speed, and wide supply voltage range make it an excellent choice for both analog and digital signal routing. Despite its obsolete status, the M74HC4051B1R remains a popular component due to its proven performance and compatibility with various electronic systems.