MC74ACT253D

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The MC74ACT253D is a dual 4-input multiplexer with complementary output. It is a member of the Advanced CMOS Logic family, which is the industry standard offering performance characteristics superior to traditional Logic devices. The device has a significantly lower power dissipation than traditional TTL devices, and allows high speed logic systems operating up to 25 MHz. The MC74ACT253D is designed to be pin-compatible in most functions with 74ALS244 and 74ACT244 devices.

The MC74ACT253D utilizes an advanced CMOS process that allows very low power dissipation while providing high speed performance. Input structures are designed to make the input pins of this device immune to problems such as ground bounce and supply-noise common in TTL circuits. The complementary output enables easy interfacing to other logic families without the need for external pull-up resistors.

The MC74ACT253D is a high performance 4-input multiplexer with two control inputs A and B for selecting one of four active Low data inputs D0-D3. Output Y will be equal to the selected input (D0-D3) whenever A and B are both Low. When A is Low and B is High, Y will be High (inactive). The MC74ACT253D is primarily intended for use in applications requiring low power dissipation, high speed, and low noise.

The four active Low data inputs allow this multiplexer to be used as a signal switch, providing the ability to connect any input to any output quickly. This device can also be used as a digital decoder by utilizing the B input as an enable line. Additionally, the MC74ACT253D can be used as a digital logic buffer.

The MC74ACT253D is used in a variety of applications, including digital data processing, communication systems, switching systems, computer memory systems, and industrial control systems. It is available in a 14-pin plastic DIP (dual in-line package) or a 14-pin ceramic flat package. The device is also available in an 18-pin flat package for increased functionality.

The operation of the MC74ACT253D is relatively simple. The two control inputs, A and B, determine the output of the multiplexer. For a given control input combination, the multiplexer will select one of the four active Low data inputs (D0-D3) and drives the corresponding output (Y) according to the control inputs. When both control inputs A and B are Low, the multiplexer selects the active Low data input and activates the output Y.

The MC74ACT253D is fabricated using advanced CMOS processes, providing a superior level of densety and power efficiency. This device operates at the CMOS and TTL voltages, with a maximum supply voltage of 5.5V. With a maximum supply voltage of 5.5V and guaranteed performance to these voltage levels, the MC74ACT253D can be used directly with a variety of logic families.

In conclusion, the MC74ACT253D is a versatile logic device offering high performance and low power. It is a dual 4-input multiplexer with complementary output, allowing it to be used as a signal switch, digital decoder and digital logic buffer. The device is used in a wide range of applications and is available in a variety of packages. It is an ideal choice for any application requiring low power dissipation, high speed, and low noise.

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