SN74ACT574DWR Integrated Circuits (ICs)

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The SN74ACT574DWR is a member of Texas Instruments’ line of logic flip flops. As a flip flop, it is used to store a single bit of information.

Ranging from ultra low-power to standard-power, TI’s flip flop family offers the flexibility to meet design requirements for the lowest power, greatest speed, or a balance between the two. The SN74ACT574DWR is part of TI’s standard-power family of flip flops, offering higher speed and greater versatility.

Application Field

The SN74ACT574DWR is suitable for use in systems where standard-power devices are required, such as control logic, data registers, state machines, address control logic and similar applications. It is specifically designed for applications with high noise immunity, due to its excellent EMI performance and its ability to be used over a wide range of supply and temperature conditions.

Working Principle

The SN74ACT574DWR is composed of two sections: a D-type flip flop and a gated D latch. In operation, the J and K inputs determine the state of the outputs. A low-level signal will force the outputs to a low level, and a high-level signal will cause the outputs to remain at the state assumed before the low-level signal appeared.

When RESET is low, all inputs are ignored, and the outputs are both forced to the low state. As long as RESET is low, a signal at either of the inputs will not cause a change at the outputs. The signal must be held until RESET returns to the high state. When RESET returns to the high state, the outputs will remain at the same state they had before RESET went low, unless a change has occurred in the J and K inputs.

The gated D latch is enabled by the ENABLE input and allows data to be stored whenever ENABLE is high. When ENABLE is low, the current state of D will be stored in the latch, and will remain even when ENABLE is low. Thus, when enabled, the SN74ACT574DWR is capable of storing information.

The SN74ACT574DWR’s design combines the advantages of both a D-type flip flop and a gated D latch, allowing it to be used in a variety of applications. Its speed and versatility make it an ideal choice for control logic, data registers, state machines, address control logic and more.

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