SN74F163ADBRE4

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The SN74F163ADBRE4 is a high-speed synchronous modulo-16 binary counter that is commonly used in applications for counting up or down, for example digital timing, frequency division, and pulse-width modulation. It is a medium-speed part often used in applications such as in computers, communications, and even in audio as a tone generator. The SN74F163ADBRE4 is a synchronous binary counter that can count from zero to fifteen in a single clock cycle and is designed to operate from a single 5V supply. It has four data outputs (Q0-Q3) for easy connection to other devices and two enable inputs (U & D) for enabling targeted enable control of individual outputs.

The SN74F163ADBRE4 is a synchronous modulo-16 binary counter, meaning that it counts in binary and when it reaches fifteen (or 1111 in binary) it resets itself back to zero or 0000. This makes it perfect for counting events in a single clock cycle. It is constructed with one active high enable input, U and one active low enable input, D. When both input terminals are enabled, the counter counts up and when only the D input is enabled, the counter counts down.

It consists of 16 flip-flops which are connected in cascading form, with old outputs feeding into the next input. When the clock signal is triggered, the flip-flop closest to it is triggered first, followed by the next one, and so on until the last flip-flop is triggered. Depending on the value of the U and D terminals, the flip-flops are either incremented (when both terminals are enabled) or decremented (when only D is enabled).

The SN74F163ADBRE4 is equipped with synchronous clear and preset inputs that allow for the counter to be reset, set or held to a certain value. The clear and preset inputs can be used to synchronously set the counter to zero or a predetermined number. The counter also has synchronous ternary outputs that can be used to drive other circuits, and synchronous four-phase inputs, which are used in applications such as division of frequency. This four-phase oscillator is recommended to implement the frequency division.

In addition to the above, the SN74F163ADBRE4 is also equipped with a power-on reset circuit that resets the counter to its initial state when power is applied. This prevents the counter from counting in the wrong direction when it first starts. The SN74F163ADBRE4 also features open-collector outputs for easy connection to other devices, as well as low supply current for added flexibility in power management.

The SN74F163ADBRE4 is a highly versatile binary counter and is suitable for a wide range of applications. Its ease of use and high performance make it well-suited for use in a variety of devices such as computers, communications, and audio equipment. With the ability to count up or down, reset, preset and enable targeted enable control, the SN74F163ADBRE4 makes for a great choice for timing, frequency division, and pulse-width modulation applications.

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