CY2292SL-1J5

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY2292SL-1J5 is a Three-PLL General-Purpose EPROM Programmable Clock Generator from Cypress Semiconductor. It operates in Commercial temperature range (0°C to +70°C) with configurable 3.3V supply voltage. The device features three integrated phase-locked loops and provides up to six configurable clock outputs, including CPUCLK, CLKA, CLKB, CLKC, and CLKD. Input frequencies range from 1 MHz to 30 MHz for reference clocks or 10 MHz to 25 MHz for external crystals. Output frequencies span 76.923 kHz to 80 MHz at 5V operation and 76.923 kHz to 66.6 MHz at 3.3V operation. It utilizes EPROM technology for factory customization.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Three integrated Phase-Locked Loops (SPLL, CPLL, UPLL) for flexible clock generation
• EPROM programmability for custom frequency configurations
• Low-skew, low-jitter outputs with skew less than 0.5 ns between related outputs
• Smooth slewing capability on CPUCLK output for power management

Clock Generators, PLLs, Frequency Synthesizers Applications

• PC motherboard clock generation
• Synchronous system timing requirements
• Green PC and laptop applications requiring frequency slewing

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific 3-digit suffix (e.g., 1J5) against the manufacturer's selector guide to confirm exact output frequencies and pinout assignments. Factory-programmable variants require submission of configuration parameters via CyClocks software to a Cypress Field Application Engineer prior to production ordering.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the CY2292SL variant specifically for 3.3V commercial temperature applications. Ensure input crystal specifications match the 10–25 MHz range or verify compatibility with 1–30 MHz external reference clocks. Confirm that the required output frequencies fall within the 3.3V operational limits of 76.923 kHz to 66.6 MHz.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The CY2292SL-1J5 belongs to the CY2292 family, which is upwardly compatible with industry standard ICD2023 and ICD2028 devices. This family provides highly configurable clock sets for modern motherboards and synchronous systems, utilizing internal ROM tables with EPROM technology for full customization without external components.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other CY2292 variants such as CY2292SC-XXX for 5V commercial operation or CY2292SI-XXX for industrial temperature ranges. Field-programmable alternatives like CY2292F or CY2292FI allow for post-manufacturing configuration but differ in programming method.