CY2292FXCT

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY2292FXCT is a field-programmable, three-PLL general-purpose clock generator manufactured by Infineon Technologies. It utilizes EPROM technology for customizable frequency generation and operates within a commercial temperature range of 0°C to 70°C. The device supports configurable 3.3 V or 5.0 V supply voltages (4.5 V to 5.5 V for 5 V operation; 3.0 V to 3.6 V for 3.3 V operation). Input frequencies range from 1 MHz to 30 MHz via an external reference clock, or 10 MHz to 25 MHz using an external crystal. Output frequencies span from 76.923 kHz to 90 MHz at 5.0 V, and up to 66.6 MHz at 3.3 V. It features four configurable outputs (CLKA–CLKD) and a CPUCLK output with smooth slewing capabilities. The component is housed in a 16-pin SOIC package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Three integrated phase-locked loops (CPLL, SPLL, UPLL) enable the generation of multiple custom frequencies from a single source.
• EPROM programmability allows for field customization using dedicated programming tools.
• CPUCLK output supports smooth frequency slewing between 20 MHz and maximum limits to optimize power consumption.
• Integrated power management includes shutdown and suspend modes to reduce current draw when inactive.

Clock Generators, PLLs, Frequency Synthesizers Applications

• PC motherboard clock generation
• Synchronous system timing
• Green applications requiring dynamic frequency scaling

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify that the specific ordering suffix 'T' corresponds to the tape and reel packaging format required for automated assembly processes. Confirm the voltage configuration matches the target system's 3.3 V or 5.0 V requirements. Ensure compatibility with the Cypress FTG Programmer (CY3670) and adapter (CY3095) if field programming is necessary.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model for designs requiring field-programmable flexibility rather than factory-fixed configurations. Consider the 16-pin SOIC package constraints and thermal characteristics (83 °C/W junction-to-ambient). Verify that the required output frequencies fall within the specified ranges for the chosen operating voltage and temperature grade.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the CY2292 family of EPROM-programmable clock generators originally developed by Cypress Semiconductor, now part of Infineon Technologies. It serves as a successor to industry-standard ICD2023 and ICD2028 devices, offering upward compatibility while providing enhanced configurability for modern synchronous systems.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The CY2292SC series represents the factory-programmable variant of the same functional family. For direct replacement, verify that the fixed factory configuration meets the design requirements, as the FXCT requires external programming.

Clock Generators, PLLs, Frequency Synthesizers FAQ

How does the CY2292FXCT handle output tristate conditions?

When the SHUTDOWN/OE input is pulled LOW, the outputs enter a tristate condition. Due to weak pull-downs on all outputs, the pins are pulled low during this state to prevent floating signals.

What is the purpose of the S2/SUSPEND input?

The S2/SUSPEND input can be configured to shut down a customizable set of outputs and/or PLLs when held LOW, allowing for granular power saving without affecting other active components.

Can the CY2292FXCT operate with both 3.3 V and 5.0 V supplies?

Yes, the device is configurable for either 3.3 V or 5.0 V operation. The internal ROM tables allow for customization based on the selected voltage level.