Infineon Technologies CY2292F

Overview

CY2292F from Cypress Semiconductor is a field-programmable, three-PLL clock generator in 16-pin SOIC package, supporting 3.3V/5V operation and delivering six low-skew outputs (CLKA–CLKD, CPUCLK, XBUF) with ≤500 ps inter-output skew. It accepts 10–25 MHz crystal or 1–30 MHz reference clock input and generates frequencies up to 90 MHz (5V) or 66.6 MHz (3.3V), enabling dynamic CPU frequency slewing for power-sensitive PC motherboard applications.

For engineers reviewing the CY2292F datasheet, CY2292F pinout, CY2292F application, or CY2292F equivalent, this device offers field-programmable EPROM configuration via CyClocks software and FTG programmer, eight selectable CPUCLK frequencies with smooth slewing, configurable shutdown/suspend control, and precise jitter performance (≤350 ps peak-to-peak for fOUT > 50 MHz).

Technical Context

The CY2292F integrates three dedicated PLLs: CPU PLL (CPLL) supports eight user-selectable frequencies with smooth slewing (1.0–20.0 MHz/ms transition rate); System PLL (SPLL) provides maximum divider flexibility across four configurable outputs; Utility PLL (UPLL) delivers highest accuracy for auxiliary timing needs. All PLLs are EPROM-programmable and operate from a single reference source.

It features dual-voltage operation (3.0–3.6 V or 4.5–5.5 V), programmable power management (SHUTDOWN/OE and S2/SUSPEND pins), and weak internal pull-downs on all outputs to prevent floating during three-state conditions. Output duty cycle is tightly controlled (45–55% for fOUT < 66 MHz; 40–60% for fOUT > 66 MHz at 1.4 V threshold).

Key Specifications

Pinout & Package

Package: 16-pin SOIC (Small Outline Integrated Circuit), surface-mount, industry-standard footprint compatible with automated PCB assembly.

Key Features

Applications

Equivalent & Alternatives

CY2292F is a field-programmable variant within the CY229x family; alternatives differ in temperature grade, programmability, and frequency limits.

Compared with CY2292 and CY2292I, the CY2292F trades factory lock-in for field adaptability-enabling late-stage frequency optimization, prototype iteration, and design reuse across platforms with differing clock trees-without sacrificing jitter, skew, or power-performance tradeoffs.

Availability

CY2292F is available at Aetrix Electronics and suitable for desktop motherboard clocking, laptop CPU power management, legacy industrial backplane replacement, and embedded SBC timing subsystems requiring stable component supply and field-programmable flexibility.

Supply support for CY2292F includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Cypress Semiconductor (now part of Infineon Technologies) is a U.S.-based semiconductor company specializing in timing, memory, and programmable logic solutions for computing and industrial markets.

The CY229x product line was designed specifically for PC motherboard and embedded system clock generation, emphasizing field programmability, low skew, and seamless compatibility with legacy ICD2023/ICD2028 timing architectures.

FAQ

What programming tools are required to configure the CY2292F?

The CY2292F requires Cypress's CyClocks software for frequency configuration and the CY3670 FTG Programmer for field programming. CyClocks calculates valid PLL divider/multiplier combinations, validates jitter and skew constraints, and exports a pinout-ready configuration file. The FTG connects via PC serial port and writes the EPROM directly-no external UV eraser or specialized lab equipment is needed.

Can the CY2292F operate with both 3.3V and 5V supplies simultaneously?

No-the CY2292F operates exclusively at either 3.3V (3.0–3.6 V) or 5V (4.5–5.5 V), selected at power-up via VDD level. Both VDD pins (pins 2 and 14) must be tied to the same supply rail. Mixed-voltage operation is not supported; however, its outputs are compatible with both 3.3V and 5V logic families due to CMOS output structure and specified VOH/VOL levels.

How does the S2/SUSPEND pin differ from SHUTDOWN/OE?

S2/SUSPEND enables selective suspension: when LOW, it can disable specific PLLs and/or outputs per EPROM configuration, preserving power while maintaining partial functionality. SHUTDOWN/OE is global-when LOW, it forces all outputs into three-state and shuts down all PLLs, oscillators, and active circuitry, reducing supply current to ≤50 µA. S2 offers granular control; SHUTDOWN/OE delivers full system sleep.

Is an external crystal load capacitor required for stable operation?

Yes-Cypress specifies optimal load capacitance of ≈17–18 pF for parallel-resonant crystals. The CY2292F's oscillator circuit is internally optimized for this range; omitting or mismatching CLOAD causes frequency inaccuracy or startup failure. For external reference clock inputs (not crystal), XTALOUT must be floated and no load capacitor is used.