CY2544QC014

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The CY2544QC014 is a Clock Generator, a type of Frequency Synthesizer made and marketed by Cypress Semiconductor Corp. It is designed to support and synchronize both clocked, I/O and memory buses, providing improved timing margins and comprehensive system clocking compatibility. The CY2544QC014 also features a programmable input/output multiplexer feature and configurable I/O banks which allow for multiple timing configurations, a JTAG test feature, and flexible verification with I/O user options.

The CY2544QC014 Clock Generator is composed of an oscillator circuit and a PLL circuit. The oscillator circuit consists of an external clock signal input, a programmable frequency divider, and an internal clock signal output. The programmable frequency divider allows for setting of the frequency output. An internal clock signal and a programmable divider are provided for I/O bus synchronization and memory bus synchronization. An internal JTAG port is provided for setting user parameters during manufacturing tests.

The PLL circuit consists of two programmable frequency multiplier, two differential voltage controlled oscillators, an input clock signal, and an internal output signal. The programmable frequency multiplier and the differential voltage controlled oscillators allow for calculating of the frequency output of the PLL circuit, with the frequency output depending on the voltage applied to the oscillators. The internal input signal is made up of the output signal of the oscillator circuit. Finally, the internal output signal is an output clock signal which can be used by the system.

The CY2544QC014 Clock Generator finds its application field primarily in systems requiring multiple and disparate clocking interfaces such as high speed memory clocks, chip-to-chip clocking applications, and power management clocking. It is extremely useful when it needs to be able to synchronize all of these clocks, yet also have the ability to generate and propagate different frequencies for various tasks all at the same time, simplifying the overall clock distribution. Additionally, its specialized I/O feature can be used to pass user test and debug data from tested devices quickly and easily to the Cypress Semiconductor Corp. test engineering team. This allows for quicker identification and troubleshooting of design issues in a relatively short amount of time.

The CY2544QC014 Clock Generator provides a precise clocking solution for multiple clocking needs in a single integrated package. It is reliable, low power, low jitter, and can be programmed and configured to match any system clocking requirements. Its precise and comprehensive system clocking compatibility makes it ideal for multiple clocking needs, while its internal JTAG port allows for quick and easy data verification during manufacturing tests. The CY2544QC014 Clock Generator is therefore a reliable, cost effective, and integral part of many system designs.

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