The MC74HC4051N is a high-speed silicon-gate CMOS analog multiplexer/demultiplexer with a single-pole eight-throw configuration (SP8T). This device functions as an 8-channel switch that can select one of eight analog or digital input signals to be connected to a single output, or conversely, route a single input signal to one of eight outputs. Control inputs determine which channel is selected. The device offers high speed, low power consumption, and a wide operating voltage range, making it suitable for diverse applications.

Applications

• Analog signal multiplexing and demultiplexing
• Audio and video signal routing
• Data acquisition systems
• Automatic test equipment (ATE)
• Process control systems

Features

• High Speed: tPD = 14 ns (typ) at VCC = 5V
• Low Power Dissipation: ICC = 4 μA (max) at TA = 25°C
• Wide Operating Voltage Range: 2V to 6V
• Low On-Resistance: RON = 70 ohms (typ) at VCC = 5V
• High Off-Resistance: ROFF = 10^12 ohms (typ)
• TTL-Compatible Control Inputs
• Enable Input for Switch Control

Benefits

• Efficiently routes multiple analog or digital signals.
• Reduces power consumption in battery-powered applications.
• Accommodates a wide range of signal levels with its flexible operating voltage.
• Minimizes signal loss with its low on-resistance.
• Prevents signal leakage when the switch is off, ensuring signal integrity.

Additional Details

The MC74HC4051N is available in a 16-pin DIP (Dual In-line Package). It operates over a temperature range of -55°C to +125°C. The TTL-compatible control inputs simplify interfacing with standard logic circuits. The Enable input provides a convenient method for disabling all channels. The high off-resistance ensures minimal signal leakage between channels. This device is well-suited for applications where multiple signals must be selectively switched or routed with high speed and minimal signal distortion. The propagation delay is typically 14 ns at 5V, enabling fast switching speeds. The outputs can drive 10 LSTTL loads.