The SN74HC253AN is a high-performance, dual 4-input multiplexer with 3-state outputs designed and manufactured by Texas Instruments. This integrated circuit is part of the 74HC series, known for its high-speed CMOS technology. The device is optimized for use in a wide variety of digital applications, from signal routing and data selection to mixed-signal environments.

Key Features

• Logic Type: Multiplexer
• Number of Circuits: Dual 4-Input
• Output Type: 3-State
• Operating Voltage Range: 2 V to 6 V
• High On-Off Output Voltage Ratio: Ensures clear signal transmission
• Low Crosstalk Between Switches: Minimizes interference
• Individual Data Input: Each multiplexer has four input lines
• Common Select Inputs: Simplifies signal routing
• High-Speed Performance: Fast switching times
• Package: 16-Pin PDIP (Plastic Dual-In-Line Package)

Applications

The SN74HC253AN is suitable for various digital applications, including:

• Data routing and signal gating
• Function generation
• Communication systems
• Computer systems
• Instrumentation and test equipment

Product Description

The SN74HC253AN is designed with two identical, selectable 4-input multiplexers with 3-state outputs. It features common select inputs (S0 and S1), two separate enable inputs (1G and 2G), and two 4-input multiplexer blocks. When the enable input is high, the respective 3-state output is in the high-impedance state, which allows for connection to common buses without the risk of bus contention.

With its wide operating voltage range, the SN74HC253AN can interface with systems of different logic levels, providing design flexibility. This component is also characterized for operation from -40°C to 85°C, ensuring reliable performance in various environmental conditions.

Overall, the SN74HC253AN from Texas Instruments is a versatile and reliable choice for designers looking to implement efficient data selection and signal routing solutions in their digital systems.