SN74LS259BDR 8-Bit Addressable Latches

The SN74LS259BDR from Texas Instruments is a high-performance integrated circuit that serves as an 8-bit addressable latch. This device is part of the 74LS logic family, which is known for its low power consumption and high-speed capabilities. The SN74LS259BDR is designed for use in applications requiring storage and retrieval of data bits, where the data is addressed through a unique combination of select inputs.

The latch comes in a compact SOIC-16 package, making it suitable for space-constrained applications. It operates over a wide voltage range of 4.75V to 5.25V, which makes it compatible with TTL power levels. With a typical power dissipation of 19.5 mW and a low input current of 20µA, it is an efficient choice for power-sensitive designs.

This device features a clear function that resets all latches, an important function for initializing or resetting systems. The SN74LS259BDR is capable of direct drive to data buses, thanks to its 3-state outputs, which can be put into a high-impedance state. This allows for easy connection to a bus without interfering with other devices connected to it.

The Texas Instruments SN74LS259BDR is versatile and can be used in a variety of digital applications, including microprocessor expansion, computer memory, control systems, and data storage and transfer systems. Its high level of integration and ease of use make it a reliable and cost-effective solution for designers looking to implement addressable latch functions in their digital logic systems.

For detailed specifications and application notes, please refer to the official Texas Instruments SN74LS259BDR datasheet.