NXP 74HC238PW 3-to-8 Line Decoder/Demultiplexer
The NXP 74HC238PW is a high-speed Si-gate CMOS device that is designed to handle the demultiplexing and decoding needs of a wide range of digital systems. This integrated circuit is part of the 74HC series, known for its robust performance and compatibility with TTL (Transistor-Transistor Logic) levels. The 74HC238PW comes in a TSSOP-16 (Thin Shrink Small Outline Package) that is both space-efficient and suitable for surface-mount technology, making it an ideal choice for compact electronic designs.
The 74HC238PW is a 3-to-8 line decoder/demultiplexer with three binary weighted address inputs (A0, A1, and A2), and a trio of enable inputs (E1, E2, and E3). The device converts the binary input data into eight mutually exclusive outputs (Y0 to Y7). The outputs are active HIGH, and the chip ensures that all outputs will be LOW when E1 and E2 are HIGH or E3 is LOW. This feature makes it easy to expand the demultiplexing capability by cascading multiple devices without the need for external gating circuits.
Key features of the 74HC238PW include:
- Wide supply voltage range from 2.0V to 6.0V, accommodating various logic level requirements.
- High noise immunity characteristic of CMOS devices, ensuring reliable operation even in noisy environments.
- Low power consumption, a hallmark of the 74HC series, contributing to energy-efficient designs.
- High-speed performance with a typical propagation delay time of only 16 ns, facilitating quick data processing and throughput.
- Standardized symmetrical output impedance, which provides balanced drive capabilities.
- Compliance with JEDEC standard no. 7A, ensuring industry-standard specifications and interoperability.
- ESD protection exceeds JESD 22, safeguarding the device during handling and operation.
The NXP 74HC238PW is suitable for a variety of applications including memory decoding, data routing, and control signal generation. Its ability to interface directly with the TTL family makes it versatile for both modern and legacy systems. Whether used in consumer electronics, computing devices, or complex automation systems, the 74HC238PW provides a reliable and efficient solution for digital decoding needs.
