CD40257 Quad 2-Line to 1-Line Data Selector/Multiplexer DIP-16 (CD40257 DIP IC)

The CD40257 is a high-voltage CMOS integrated circuit consisting of four independent 2-input multiplexers with 3-state outputs. It utilizes silicon-gate technology to select one of two 4-bit data words and route it to the output pins based on a single control input.

This IC is primarily used for data routing, signal switching, and bus-oriented applications in digital systems. It is a common component in Arduino electronics projects in India for multiplexing sensor data or expanding input capabilities in microcontroller-based designs.

Key Features

• Quad 2-line to 1-line data selection
• 3-state outputs for direct connection to bus lines
• High noise immunity typical of CD4000 series
• Low power consumption suitable for battery operation
• Wide operating supply voltage range
• Standardized symmetrical output characteristics
• Common Select and Output Enable control lines
• Fully static operation

Specifications

• IC Type = Data Multiplexer
• Logic Family = CD4000
• Supply Voltage = 3V to 18V
• Package Type = DIP
• Number of Pins = 16
• Mounting Type = Through-Hole
• Propagation Delay = 150ns at 5V
• Operating Temperature = -55 to 125 degrees Celsius

Interfaces

• A1-A4 = Word A Data Inputs
• B1-B4 = Word B Data Inputs
• Y1-Y4 = 3-State Data Outputs
• SEL = Data Select Input (A or B)
• OE = Output Enable (Active Low)
• VSS = Ground (0V)
• VDD = Positive Supply Voltage
• NC = No Connection