SN74HC253ANG4 Dual 4-Input Multiplexer with 3-State Outputs

The SN74HC253ANG4 is a high-performance, dual 4-input multiplexer with 3-state outputs designed and manufactured by Texas Instruments. This integrated circuit (IC) is part of the 'HC' family, which signifies that it is fabricated using silicon-gate CMOS technology. This technology ensures that the device has the speed of LSTTL gates with significantly lower power consumption.

The SN74HC253ANG4 features two individual 4-input multiplexers with 3-state outputs that can be used independently or combined for a wide variety of logical functions. Each multiplexer has four binary control inputs (A, B, C, and D) and an enable input (E). When the enable input is high, the respective 3-state output (Y) is in the high-impedance state, which effectively disconnects the output from the circuit. This feature is particularly useful when implementing bus-oriented systems, as it allows multiple outputs to be connected to a common bus without the risk of contention.

With a typical operating voltage range of 2V to 6V, the SN74HC253ANG4 is versatile and can be used in a variety of digital applications. The device can operate over a wide temperature range, making it suitable for industrial applications as well as consumer electronics.

The IC is offered in a 16-pin DIP (Dual In-line Package) with a suffix 'N', which is easy to handle and integrate into various types of printed circuit boards (PCBs). This package is compatible with through-hole technology, which is beneficial for prototyping and educational purposes, where manual assembly is often required.

Some of the key features of the SN74HC253ANG4 include:

• Two 4-input multiplexers with 3-state outputs
• Wide operating voltage range (2V to 6V)
• Low power consumption characteristic of CMOS devices
• High impedance state during power down
• Significant drive capability to drive bus lines directly
• Industry-standard DIP packaging for easy integration

Overall, the SN74HC253ANG4 from Texas Instruments is a reliable and flexible component for digital designers looking to implement multiplexing functions with the added benefit of a 3-state output for bus-connected systems.