SN74AS869DW

Timing:	Synchronous
Base Part Number:	74AS869
Supplier Device Package:	24-SOIC
Package / Case:	24-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
Voltage - Supply:	4.5V ~ 5.5V
Trigger Type:	Positive Edge
Count Rate:	45MHz
Series:	74AS
Reset:	Synchronous
Number of Bits per Element:	8
Number of Elements:	1
Direction:	Up, Down
Logic Type:	Binary Counter
Part Status:	Active
Packaging:	Tube

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The SN74AS869DW is a high-performance four-bit binary synchronous counter. It can count from 0-15 with any desired sequence and can also count up and down. This device has four inputs - CLOCK, CLK, D, and CE. CLK is the clock input that controls the sequence of counting, CE is the clear/enable line, which is used to reset the counter and enable it to begin counting. The D input is used for gating the clock.The SN74AS869DW is mainly used in digital logic and control systems, where it is used for setting up, controlling and monitoring counters and dividers. It is also being used in communication systems that require accurate timing of digital data. The device provides good speed and accuracy, making it very useful for these types of applications.The SN74AS869DW operates in two modes: synchronous and asynchronous. In synchronous mode, the outputs will change on each high-going or low-going clock transition. In asynchronous mode, the outputs will change only on the low-going clock transition. In both cases, the output of the SN74AS869DW can be used to increment or decrement the count, depending on the logic levels of the three control inputs.The SN74AS869DW can be used to divide the incoming clock into fractions of its original frequency. It can be used to divide by two, three, four, or more if desired. This is very useful in clock generations, where the clock frequency must be divided by an integer in order to provide an exact timing signal. The SN74AS869DW can also be used as a counter, where it will count the number of times it has been clocked, and display the corresponding binary output. This is useful for counting events such as input pulses, elapsed time, and many other applications. The SN74AS869DW offers advanced features such as preset and clear capability, which allow the counter to be preset to any desired value. This can be useful when the counter is used as a timer, or when the counter needs to be set to a specific count in order to measure the frequency of an input signal. The device has low power consumption, making it ideal for battery-powered or portable devices. It is offered in a wide variety of packages, making it compatible with many existing designs. The SN74AS869DW is a highly reliable and versatile device, making it an ideal choice for many applications. It offers superior performance, and is an excellent choice for applications requiring a high-speed, low-power, and accurate binary synchronous counter.

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