SN74ALVCH16260DL

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Logic - Latches

A logic latch is a type of digital circuit element that captures a binary data bit and holds it until the next input signal changes. It is a form of storage, but the operation of the circuit is governed by a control input, unlike a memory based on storage cells. This makes the latch useful for implementing sequential logic networks.

The SN74ALVCH16260DL is a particular type of logic latch. It is an advanced 16-bit latch with 25ns tpd (turned-on delay) and is primarily used for high speed applications. It is resistant to ESD (electrostatic discharge), has logic gate equivalent input structure and contains no internal clocking logic. This makes it particularly well-suited to use in applications such as microprocessors, secondary storage, video RAM and audio RAM.

Working Principle

The SN74ALVCH16260DL has two distinct operation modes: asynchronous and synchronous. In asynchronous mode, the latch is activated with a low logic at the input, which it replicates to the output when the input to the clock pin goes high. In synchronous mode, the latch responds to the signal at the ‘D’ input port, and because the signal arrives with a corresponding clock pulse, variation in the time at which the signal is prepared is eliminated.

The SN74ALVCH16260DL can also be used in multiplexer configurations. A multiplexer is a device that selects one of several inputs, and the SN74ALVCH16260DL can be used to facilitate this. The selection is determined by a binary input that is used to select either the ‘D’ or the ‘CK’ input as the data source.

The SN74ALVCH16260DL, like all latches, is important for all types of digital logic circuits. It is used to store a binary data bit in a single device for use in complex logic networks and can be used to implement a wide you range of sequential circuits.

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