CD74HCT40103E

Timing:	Synchronous
Base Part Number:	74HCT40103
Supplier Device Package:	16-PDIP
Package / Case:	16-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 125°C
Voltage - Supply:	4.5V ~ 5.5V
Trigger Type:	Positive Edge
Count Rate:	14MHz
Series:	74HCT
Reset:	Asynchronous
Number of Bits per Element:	8
Number of Elements:	1
Direction:	Down
Logic Type:	Binary Counter
Part Status:	Active
Packaging:	Tube

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Introduction to CD74HCT40103E

CD74HCT40103E is a high-speed, high-precision logic counter/dividers.It is a high-speed and precision 5-bit asynchronous down counter especially suitable for clock, divide-by-2 and divide-by-10 applications, due to its low cost and considerable short propagation delay.The 88-lead SSOP (shrink small-outline package) version of CD74HCT40103E is available in 5-bit x 40-bit CBGA (ceramic ball-grid array) form, while the 68-lead SSOP version is available in 8-bit x 28-bit CBGA form.

Features of CD74HCT40103E

The CD74HCT40103E from Texas Instruments is a high speed, low cost, 5-bit asynchronous counter that features an asynchronous reset pin and a functional divide-by-two as well as divide-by-ten for frequency division applications.It has a clock frequency range from 0MHz to 10MHz depending on the IC used.It has a wide operating temperature range of -40°C to 85°C.

CD74HCT40103E Application Field

The CD74HCT40103E is mostly used in frequency division applications. It can be used to divide the frequency at the output of a clock or a system. It can also be used to divide the frequency generated by a pulse generator. This makes the IC ideal for use in communications and timing applications, as it can be used to generate a wide variety of pulse widths, frequencies and divide ratios. The IC is also capable of divide-by-two, divide-by-four and divide-by-ten ratios, making it useful for designing modulators, frequency synthesizers and timing systems.

CD74HCT40103E Working Principle

The CD74HCT40103E is a high-precision five-bit asynchronous down counter. It runs at a high speed and uses a low logic power in order to reduce power consumption. As it has a low propagation delay and high-speed operation, it is ideal for applications that require high-speed logic operations like timing and frequency modulation.The CD74HCT40103E uses a clocked inverting output to begin its counter cycle. The counter is then powered by its own clocked inverting output, and in this manner, it will count down from a previously-set value to zero before it is reset and powered again.When the CD74HCT40103E is used to divide a frequency, it works in the following way. It takes the input signal, divides it by the given number and produces the divided frequency at the output. This is done in a two-stage process. First, the input signal is normalized to the frequency desired, as this will increase the accuracy of the output signal. Then, the desired frequency is selected, and the counter is set to divide by the same number. As the counter counts down, the output signal is divided by the same number, resulting in the desired frequency at the output.The reset pin on the CD74HCT40103E is especially useful in applications, as it allows the counter to be reset at any given time. This allows the counter to be reset and clocked at the same time, which can be useful if a time delay is required.

Conclusion

The CD74HCT40103E is a versatile five-bit asynchronous counter suitable for frequency divisions applications. It has a high clock frequency range, a wide operating temperature range, and a low propagation delay. It uses a clocked inverting output to begin its counter cycle and features an asynchronous reset pin for resetting at any given time. Lastly, it is affordable, making it an attractive choice for many applications.

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