MC74AC161DG

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The MC74AC161DG is a CMOS logic device that belongs to the family of logic counters and dividers. It is designed for high-speed applications, with a maximum operating frequency of 100 MHz when used with a single power supply voltage of 5V. The device is composed of four stages of 4-bit synchronous counters, each having four data outputs (Q, Q1, Q2, Q3, and Qbar). The counters are fully-programmable and can be cascaded, allowing for up to 16-bit (9 + 4 bit) counting capability. The MC74AC161DG is an essential component of a variety of industrial, automotive, and medical applications, as well as digital electronics and communication systems.

The MC74AC161DG integrates a wide range of attractive features. It has synchronous preset and clear, which allows the reset and clear operations to occur at the same time. It also features asynchronous terminal count, so that the device can both count up and count down. Finally, it offers edge-triggered clock control, which allows for a more accurate and reliable operation. Additionally, the device has an ultra-low power consumption, making it ideal for applications that require a high-frequency count.

The MC74AC161DG is designed with a power-down feature which means that the device can be activated and deactivated with a single low voltage signal, allowing for an efficient and energy-saving operation. Additionally, this device is equipped with an automatic power-on reset, which ensures that the contents of the register are cleared on startup. This is especially useful in applications that require a reset at each occurrence of a power-on cycle.

The Counters and dividers of the MC74AC161DG are based on a flip-flop design. This design consists of two data inputs, a clock input, and four outputs, one of which is an inverted form of the other. The clock input is used to synchronize the flip-flop. When the clock receives a low-to-high transition, the contents of the data register will be sampled. The logic state of the data inputs will determine the output levels of the two outputs and the contents of the register are updated accordingly. The device has a total of three enable inputs and a reset input, which enable the user to select a number of counter/divider/preset or reset configurations.

The MC74AC161DG is an ideal solution for a range of industrial, automotive and medical applications, as well as digital electronics and communication systems. All of its features come together to provide a robust and reliable logic device for counting and dividing tasks. With its ease of use and low power consumption, the MC74AC161DG is sure to prove itself to be a popular choice for high-speed count and divide applications.

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