MC9300 Series, Latches

Latches refers to a specific category of digital logic devices that are built as integrated circuits. Latches are elementary digital memory devices that can store and retain a logic state, which can be updated at any time when a latch enable signal is active. Latches are similar to flip-flops, but they differ in that they do not rely on clock signals to change state. Instead, latches can update their stored value whenever the latch enable signal is valid. This enables them to respond in real-time to changes in input signals. Transparent latches, a common type of latch, have the additional feature of allowing the outputs to reflect the current state of the inputs while the latch enable signal is active. This means that the output of a transparent latch can change immediately as the input changes, rather than waiting for the stored state to stabilize. Latches are widely used in various digital systems where dynamic storage and retrieval of data is required. They are commonly found in applications such as register files, data processing units, and control circuits. The ability of latches to capture and retain input signals based on the status of the latch enable signal makes them valuable components for managing real-time data in electronic systems. Integrated circuits providing latch functionality offer configurable options such as different latch types, input and output configurations, and latch enable control signals. These ICs are designed to efficiently store and update data based on the latch enable signal, contributing to the overall functionality and performance of digital systems. In summary, Integrated Circuits (ICs) - Logic - Latches are digital logic devices built as integrated circuits that provide elementary memory functionality. Latches can store and update a logic state based on a latch enable signal, allowing for real-time response to input changes. Transparent latches further enable immediate reflection of input states at the outputs. Latches are extensively used in digital systems for dynamic data storage and retrieval, playing a crucial role in various applications.