CD74HC238PWT High-Speed CMOS Logic 3-to-8 Line Decoder/Demultiplexer

The CD74HC238PWT is a high-performance, silicon-gate CMOS device from Texas Instruments that serves as a 3-to-8 line decoder or demultiplexer. It is a part of the high-speed CMOS logic family, which is renowned for its robust operation and compatibility with a wide range of applications. The IC is designed to facilitate the decoding of binary information to select one of eight output lines, making it an ideal choice for a variety of multiplexing and data-routing applications.

This integrated circuit features three binary input pins (A0, A1, A2) that determine which one of the eight output pins (Y0 to Y7) will be active. The outputs are designed to drive 10 LSTTL loads, which makes this device highly versatile for interfacing with other logic families. Additionally, the CD74HC238PWT has two active-low enable inputs (E1, E2) and one active-high enable input (E3), which must be in the proper logical state for the device to function.

The CD74HC238PWT operates over a broad voltage range of 2V to 6V and offers the feature of balanced propagation delay and transition times. This balance ensures that the system's timing is reliable and predictable, which is crucial for high-speed operations. Furthermore, the device has a significant advantage in power consumption, as it only draws a minimal amount of current in its quiescent state, making it suitable for power-sensitive applications.

Available in a TSSOP (Thin Shrink Small Outline Package) with 16 pins, the CD74HC238PWT is designed for surface-mount technology, providing a compact footprint that is beneficial for space-constrained applications. Its enhanced product features include:

• Typical operating temperature range from -55°C to 125°C
• Low input current of 1µA max
• High noise immunity characteristic of CMOS technology
• Significant power reduction compared to LSTTL logic ICs

Whether used in high-speed data processing systems, computer systems, or control systems, the CD74HC238PWT from Texas Instruments offers the reliability and performance expected from a leading semiconductor manufacturer.