Infineon Technologies CY22392FXCT

Overview

CY22392FXCT from Cypress Semiconductor is a flash-programmable, three-PLL clock generator in 16-pin TSSOP package, supporting 3.3 V operation, up to 200 MHz output frequency, ±50 ppm initial accuracy, and programmable crystal load capacitance (6–30 pF). It delivers six configurable clock outputs (CLKA–CLKD, CLKE, XBUF) for timing synthesis in multimedia SoCs and industrial controllers.

For engineers reviewing the CY22392FXCT datasheet, CY22392FXCT pinout, CY22392FXCT application, or CY22392FXCT equivalent, this device offers field-programmable PLL configuration, glitch-free 3-bit frequency select (S0–S2), ultra-low-jitter outputs, and CyClocksRT™-based design entry with power estimation-critical for high-accuracy clock tree validation and EMI-sensitive timing systems.

Technical Context

The CY22392FXCT integrates three independent PLLs, each with 11-bit P and 8-bit Q dividers, enabling precise frequency synthesis from an 8–30 MHz crystal or 1–166 MHz driven reference. Its 4×4 crosspoint switch routes reference, PLL1, PLL2, or PLL3 to four 7-bit post-dividers (CLKA–CLKD), while CLKE derives directly from PLL1 via /2, /3, or /4 synchronous division.

Crystal drive strength is programmable to match diverse crystal manufacturers; on-die linear 6-bit load capacitors (0.375 pF resolution) reduce temperature- and bias-induced frequency drift. Power management includes SHUTDOWN/OE (sub-5 µA shutdown current) and S2/SUSPEND (selective PLL/output disable) with guaranteed glitch-free transitions during frequency reconfiguration.

Key Specifications

Pinout & Package

Package: 16-pin TSSOP (4.4 mm × 5.0 mm, 0.65 mm pitch), RoHS-compliant, JEDEC MO-153 compliant.

Key Features

Applications

Equivalent & Alternatives

Two verified alternatives support migration paths for design continuity and supply resilience.

Compared with Si5338A-D-GM and CY22393FXCT, the CY22392FXCT provides unique flash-based field programmability without host dependency, making it optimal for secure, standalone timing upgrades and rapid prototyping-while CY22393FXCT extends its capabilities for thermally demanding environments, and Si5338A suits complex multi-protocol synchronization where I²C control is already present.

Availability

CY22392FXCT is available at Aetrix Electronics and suitable for video processing systems, industrial PLC controllers, medical imaging front-ends, and test & measurement equipment requiring stable component supply, long-term lifecycle assurance, and field-programmable timing flexibility.

Supply support for CY22392FXCT 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 programmable system-on-chip (PSoC), memory, and timing solutions for industrial, automotive, and consumer markets.

The CY22392FXCT belongs to Cypress's CyberClocks™ family of flash-programmable clock generators, designed specifically for high-accuracy, multi-frequency timing synthesis in resource-constrained embedded systems where flexibility, security, and zero-footprint configuration are essential.

FAQ

What programming tools are required to configure CY22392FXCT before PCB assembly?

The CY22392FXCT must be programmed using Cypress's CyClocksRT™ software and the CY3672 development kit with CY3698 adapter for prototypes. Production programming is supported by third-party programmers from BP Microsystems and HiLo Systems, or through Cypress-authorized distributors offering pre-programmed units with configuration-specific part number extensions.

Can CY22392FXCT accept a 100 MHz driven clock instead of a crystal?

Yes-CY22392FXCT accepts driven clock inputs up to 166 MHz in commercial grade. To use this mode, leave XTALOUT unconnected (floating), configure the device to bypass internal crystal oscillator, and apply the clock directly to XTALIN. The on-die load capacitors are automatically disabled in driven-clock mode.

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

SHUTDOWN/OE disables all active circuitry (PLLs, oscillator, dividers) and forces outputs to high-impedance, drawing <5 µA. S2/SUSPEND enables selective suspension: users can define which PLLs and outputs remain active via configuration registers, allowing partial functionality retention (e.g., keep PLL1 running while suspending PLL2 and CLKD) without full relock delay.

Is the CY22392FXCT pin-compatible with earlier CY2292 devices?

Yes-CY22392FXCT maintains identical 16-pin TSSOP/SOIC pinout and basic functional mapping with the CY2292, enabling drop-in replacement. However, it adds wider P/Q dividers, enhanced crystal drive control, and improved jitter performance; existing CY2292 firmware and layouts require only minor register updates to leverage new features.