Product Overview: 74HC251DB

The 74HC251DB is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL (LSTTL). Manufactured by NXP, a renowned leader in the semiconductor industry, this multiplexer is part of the 74HC series, known for its robust performance and compatibility with a wide range of digital systems.

Key Features

• Logic Type: 8-input multiplexer with 3-state output
• Operating Voltage: Ranges from 2.0V to 6.0V, making the device suitable for a variety of operating environments and compatible with TTL levels.
• Output Capability: Capable of driving up to 15 LSTTL loads, thanks to its high current output.
• Propagation Delay: Features a typical propagation delay of 8ns, ensuring swift data selection and output.
• Power Dissipation: Exhibits a low power consumption with a typical static current of only 2µA, making it an energy-efficient choice.

Product Specifications

The 74HC251DB operates as an 8-input multiplexer with one output channel. It allows the selection of one out of eight data inputs, which is then directed to the output. The selection is determined by three select inputs (S0, S1, S2). Additionally, the device features an enable input (E), which, when active, forces the output into a high-impedance state, effectively disconnecting the output from the circuit, a useful feature for implementing multiplexer trees or for interfacing with bus lines.

Applications

Due to its versatility and high performance, the 74HC251DB is suitable for a wide range of applications, including:

• Data multiplexing
• Signal gating
• Function generation
• Computer logic
• System control

Quality and Reliability

NXP's commitment to quality ensures that the 74HC251DB meets strict industry standards for performance and reliability. The device is available in a DB package, which is a small outline package, making it suitable for space-constrained applications.