74AHC126D-Q100,118

Logic - Buffers, Drivers, Receivers, Transceivers

In logic circuits, the 74AHC126D-Q100 is a quadruple bus buffer gate (a logic buffer) with 3-state outputs which are ideal for driving bus lines. It has two independent sets of four non-inverting buffers. Each of the two data inputs and two outputs are connected to the four buffers in each register. The outputs haveactive-low output-enable (OE\) inputs that when driven low will put the outputs into a high-impedance state. In a high-impedance state there is no current flow, so the outputs no longer affect the lines they are driving, allowing for multiple devices to drive the same bus. It operates from a single supply voltage ranging from 1.8V to 5.5V and is specified in the unconditionally stable region.

The 74AHC126D-Q100 has a versatile range of applications in many types of data or address buses because the outputs are 3-state, allowing multiple devices to drive the same bus. It is used in a variety of applications including display files, address latches, and multiplexers, as well as data buses. It can be used as a buffer in address buses where a multiplexer is used to select the address bits. It is also used in data buses where multiple devices share the same bus, such as in a memory system or microcontroller.

The 74AHC126D-Q100 has an output-enable (OE\) pin which can be used to control the outputs. The OE pin is active-low, meaning when it is driven low, the output will be in a high-impedance state, allowing for multiple devices to drive the same bus. When OE is driven high, the output will switch to its active output state. The 74AHC126D-Q100 can also be used as an inverter, as the output will be the inverse of the input.

The 74AHC126D-Q100 is also used in memory and peripheral systems, where it can be used to buffer address and data bits and provide the necessary drive for input and output lines. It is also used in many microcontroller and microprocessor systems due to its low power consumption and ability to drive data and address lines. It is also used in clock distribution systems where it can buffer and distribute clock signals.

The working principle of the 74AHC126D-Q100 is simple. It has two data inputs and two outputs that are connected to the four buffers in each register. The outputs have active-low output-enable (OE\) inputs that when driven low will put the outputs into a high-impedance state. When the OE is driven high, the output will switch to its active output state, which can be either high or low depending on the logic level of the inputs. If the inputs are low, the output will be high and vice versa.

The 74AHC126D-Q100 is a versatile logic buffer that can be used in a variety of systems for data bus buffering, address bus buffering, microcontroller systems, memory systems and clock distribution. It is characterized by a low power consumption and a single supply voltage range from 1.8V to 5.5V. It can also be used as an inverter, and the outputs will be in a high-impedance state when the OE input is low.