SN74AHC573DBR Integrated Circuits (ICs)

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The 74AHC573DBR is a high-performance octal D-type flip-flop with non-inverting register, commonly utilized as a data latch in logic circuit applications. The device is a D-Type flip-flop, with each flip-flop featuring non-inverting D-Input and Q-Output with individual set, reset, and clock inputs. All D inputs are in the low state when the reset line is driven low, and all Q outputs are reset into the high state.

The 74AHC573DBR includes advanced circuit techniques in order to ensure high speed performance, low power consumption, and greater output drive capability. Its two simultaneous active-low active reset (R) inputs can reset all outputs to the high logic state. The enable input (E) can be used to enable the clock inputs (CPx) individually, allowing any of the eight flip-flops in the device to be disabled individually. This feature is useful when multiplexing data.

The basic operation of the AHC573DBR can be broken down into two distinct functions, the latches and the flip-flops. Latching captures a set of data and the flip-flops hold the pre- captured data. In its simplest form, the device can be thought to have two separate blocks; the latch and the register. The latch is a circuit with two active-low inputs (S and R) that stores data. When the latch is in the active state, logical ones (low state) at the set (S) and reset (R) inputs will establish and retain the data at the latch’s output (Q). The register takes the data from the latch and drives it onto the bus.

When data is loaded into the latch and the latch is activated, the outputs drive the bus with the data stored. When the clock (CP) input is enabled, the data is sent to the bus, and a new set of data is latched into the latch. This data is again driven onto the bus when the clock (CP) is disabled, allowing the device to act as a shift register. This technique of continuously shifting data through the device is commonly used in computer memory applications (SRAM and DRAM), as well as clock-synchronized I/O operations.

On the other hand, the flip-flops in the AHC573DBR can be used for running counters and sequencing, or even for controlling multiplexers that switch data. This is done by feeding the output of one flip-flop back into the input of another so that changing the state of one output generates an output on another. This can be especially effective when combined with the inputs from the latch.

The AHC573DBR is a great choice for applications where data needs to be stored, shifted, clocked, and/or manipulated. Along with the advanced circuit techniques applied to give superior performance and drive capability, the device is also available in various packages, making it a great choice for different size requirements.

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