Product Overview: 74HC4514N by NXP Semiconductors

The 74HC4514N is a high-speed Si-gate CMOS device from the reputable NXP Semiconductors, renowned for its logic family products that combine the advantages of both high-speed and low-power consumption. This integrated circuit is a 4-to-16 line decoder/demultiplexer with an input latch and features a fully static operation that ensures reliability and stability across applications.

Designed with 16 decoded outputs, the 74HC4514N is capable of converting a 4-bit binary input to one of sixteen mutually exclusive outputs when both the strobe input, and the enable input are held active. The input latch remains transparent to the data when latch enable (LE) is HIGH, and data on the inputs can be changed while the outputs are enabled. When LE is taken LOW, the data that was present at the inputs at this time is latched, and the outputs remain stable and unaffected by further changes on the input lines.

The 74HC4514N is equipped with an active LOW enable input (E) and an active HIGH strobe input (ST), which must both be satisfied to activate the device's decoding function. When E is HIGH, all outputs are forced LOW, and when ST is LOW, all outputs are inhibited and will also be LOW regardless of the state of E. This feature allows for easy expansion of the decoder with minimal hardware and can be particularly useful in applications where output control is required.

Featuring a wide operating voltage range from 2V to 6V and compatibility with TTL levels, this device is versatile and can be used in various systems without the need for level shifting. The 74HC4514N is provided in a standard 24-pin DIP package, making it suitable for breadboard prototyping as well as permanent PCB installations.

Common applications for the 74HC4514N include memory address decoding, data routing, and control functions in microprocessor systems, where its ability to handle multiple signals efficiently can significantly streamline system design. Its robust construction and proven logic technology make it a reliable choice for designers looking to implement complex decoding schemes in their digital projects.