74LV4020PW,118

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Logic counters, dividers, and other associated circuits are essential components of any digital electronics system. The 74LV4020PW,118 is a quintessential example of such a logic component – it provides a low-voltage, 5-stage Johnson counter with decoded outputs and is designed to be used in applications with voltage levels of up to 5V. The 74LV4020PW,118 enables the user to designate any number of clock pulses to provide a division of the applied frequency by any number up to 10,000. In addition to its use as a divider and counter, the 74LV4020PW,118 can be used as a frequency synthesizer or a programmable divide-by-N Latch when combined with external decoders and latches.

The 74LV4020PW,118 is manufactured from a very low power CMOS technology and comes with TTL compatible inputs and an output enable function. This not only makes it suitable for low power applications such as automotive electronics, it also allows for a very low quiescent current of only 7µA when in active mode. This low power consumption makes the 74LV4020PW,118 an ideal choice for applications where long battery life is needed.

The 74LV4020PW,118 includes 3 oscillator inputs (OE, PE, and CK) and several differently configured output latches (Q1 - Q5). The OE input allows the user to control the operation of the device by either enabling or disabling the oscillator while Operating Mode (PE) is used to control the operation of the internal divider and to set the division ratio. Finally, the Clock (CK) input is used to supply the sequencing clock pulses used by the internal divider. Oscillator outputs will be provided by the Q1 – Q5 latching outputs.

When power is first applied to the 74LV4020PW,118, the Q1 – Q5 latch outputs will remain high while an internal reset takes place. This ensures that the device is in its proper reset state prior to any clocking inputs. Next, the user provides continuous clock pulses (CK) and optional control of the OE or Operating Mode (PE) inputs. The internal divider divides the Clock frequency by any number within the divisor range (1–10,000). After the data is sequenced through the internal registers and clocked out via outputs Q1 – Q5, which will remain in the same state until the sequence is repeated.

The 74LV4020PW,118 is mainly used for frequency division applications such as automotive electronic systems, communications systems, frequency synthesizers, and as a Programmable Divide-by-N Latch. It also has a wide range of applications in the automotive and industrial electronics segments due to its low power consumption and robust design. It is also suitable for switching and logic functions as it has an output enable function.

The 74LV4020PW,118 is an essential part of any digital electronics systems and its wide range of applications and robust design make it a must-have component. Its low power ratings, TTL compatibility, and easily programmable divider make it an invaluable tool for engineers who require a reliable and precise frequency divider for their projects.

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