74FCT388915TBJG

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The 74FCT388915TBJG is a unique device from a leading semiconductor manufacturer – Fairchild Semiconductor. This device belongs to the Clock/Timing clock generators, PLLs, frequency synthesizers product line and it is a programmable oscillator with selectable divide by 2 and 3.This oscillator is a digital combinational circuit that is used to produce a constant frequency from relatively slow digital signals. With this device, the user has the flexibility to divide the input clock signals by either 2 or 3, and obtain a more desirable output frequency. The 74FCT388915TBJG can be programmed to produce a wide range of frequencies, and is widely used in applications such as clock and data recovery, phase locked loops, spread spectrum phase locked loops and fractional-N synthesizers.The 74FCT388915TBJG\'s functioning hinges on two high speed NAND gates and two configuration switches. The 74FCT388915TBJG\'s output frequency can be changed by altering the NAND gate’s logic levels. This can be achieved by adjusting the configuration switches - a single switch to adjust the output duty cycle, and one to set the divide-by-2 or divide-by-3 mode. The device also has two control pins (Cp/4 and D/3). When both these pins are high, the device is configured to divide the incoming frequency by 2, giving an output frequency equal to the input frequency divided by 2. When the Cp/4 pin is low and the D/3 pin is high, the device is configured to divide the incoming frequency by 3, giving an output frequency of input frequency divided by 3. The 74FCT388915TBJG thus enables easy frequency division, which can be used in various applications.The device was designed for operating temperatures between 0°C and 85°C and its slew rate is 5.4 V/ns. It is an low-power CMOS device with a maximum current of 40 mA for a supply voltage of 5V. The device is packaged in a 14 pin DIP or 14 pin SOIC package and functions using supply voltage ranging from 2.7 to 5.5V.The 74FCT388915TBJG can be seen in various applications such as telecom, industrial and automotive. In addition, it can also be used in TV and radio equipment, computer peripherals and set-top boxes.Overall, the 74FCT388915TBJG is an ideal solution for applications requiring frequency division, such as clock and data recovery, phase locked loops and fractional-N synthesizers. It is an efficient, low-cost and low-power CMOS device that provides reliable performance in an array of applications.

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