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Infineon Technologies CY22393FXCT
- Part No.:
- CY22393FXCT
- Manufacturer:
- Infineon Technologies
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CY22393FXCT.pdf
- Description:
- IC CLOCK GENERATOR 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,585
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Product details
Overview
CY22393FXCT from Infineon Technologies (formerly Cypress Semiconductor) is a three-PLL, serial- and flash-programmable clock generator in 16-pin TSSOP package. It delivers up to six CMOS clock outputs (CLKA–CLKC, CLKD, CLKE) with programmable frequencies from 1 MHz to 200 MHz, ultra-low jitter, and configurable crystal load capacitance (6–30 pF). Designed for commercial-temperature embedded systems requiring multi-frequency clock synthesis from a single 8–30 MHz crystal.
For engineers reviewing the CY22393FXCT datasheet, CY22393FXCT pinout, CY22393FXCT application, or CY22393FXCT equivalent, this device supports in-system reconfiguration via two-wire serial interface (SCLK/SDAT), glitch-free frequency switching using S0/S1/S2 inputs, flash-based nonvolatile configuration storage, and flexible power management (SHUTDOWN/OE, S2/SUSPEND).
Technical Context
The CY22393FXCT integrates three independent PLLs-each with an 11-bit P-divider and 8-bit Q-divider-enabling precise frequency synthesis from a common reference. Its 4×4 crosspoint switch routes PLL outputs to six configurable clock pins, while a /2-/3-/4 synchronous post-divider on PLL1 feeds CLKE. All PLLs support serial programming and retain settings in on-chip flash memory.
Crystal oscillator performance is enhanced by on-die linear parallel-plate load capacitors (6–30 pF, 0.375 pF step), programmable drive strength, and bypass capability for driven reference inputs up to 166 MHz. The device operates at 3.3 V only and includes dedicated analog (AVDD/AGND) and digital (VDD/GND) supply domains for noise isolation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PLL Count | Three fully independent PLLs for concurrent multi-frequency synthesis |
| Output Count | Six CMOS clock outputs (CLKA–CLKC, CLKD, CLKE) with individual 7-bit dividers |
| Input Frequency Range | 8–30 MHz crystal or 1–166 MHz driven reference clock |
| Output Frequency Range | 1–200 MHz (CMOS), with guaranteed glitch-free switching between eight preloaded configurations |
| Crystal Load Capacitance | Programmable 6–30 pF in 0.375 pF steps via 6-bit register for optimal crystal pullability and stability |
| Supply Voltage | 3.3 V ±5% (VDD, AVDD); separate analog/digital rails reduce supply-induced jitter |
| Interface | Two-wire serial (SCLK/SDAT) supporting in-system programming and dynamic updates without reset |
Pinout & Package
Package: 16-pin TSSOP (4.4 mm × 5.0 mm, 0.65 mm pitch), RoHS-compliant, NiPdAu lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XTALIN (Pin 4) | Reference input | Accepts fundamental-mode parallel-resonant crystal (8–30 MHz) or driven clock (1–166 MHz); XTALOUT must be left floating for driven mode |
| XTALOUT (Pin 5) | Crystal feedback | Drives crystal in oscillator mode; internal load caps applied unless bypassed for external clock input |
| CLKA–CLKC (Pins 10, 9, 1) | Configurable clock outputs | Each has independent 7-bit divider; CLKA/CLKB share dual-register selection via S0/S1/S2 for glitch-free switching |
| CLKD/CLKE (Pins 7, 8) | Configurable clock outputs | CLKD routed from crosspoint switch; CLKE sourced from PLL1 post-divider (/2, /3, or /4) |
| SHUTDOWN/OE (Pin 16) | Power control | Active-low: places all outputs in high-impedance state and shuts down internal circuitry when asserted |
| S2/SUSPEND (Pin 15) | General-purpose input | Latched at startup; selects between two frequency tables for PLL1, CLKA, and CLKB dividers |
| SDAT (S0), SCLK (S1) (Pins 12, 13) | Serial interface | Two-wire bus for in-system configuration; S0/S1 values latched at power-up determine initial frequency table index |
Key Features
| Feature | Design Value |
|---|---|
| Flash-programmable configuration | Nonvolatile storage retains custom PLL/divider settings across power cycles without external EEPROM |
| Glitch-free frequency switching | S0/S1/S2 inputs select among eight preloaded configurations with zero-cycle phase discontinuity on CLKA/CLKB |
| On-die linear crystal load capacitors | 6–30 pF range in 0.375 pF increments eliminates external caps and minimizes frequency drift vs. temperature/voltage |
| Dual-domain power supply | Separate AVDD/AGND and VDD/GND rails isolate analog PLL circuitry from digital noise, reducing jitter by >30% vs. single-rail designs |
| Configurable crystal drive strength | Two-bit programmable oscillator drive level ensures reliable start-up and stable oscillation across diverse crystal ESR specs |
Applications
| Network Switch Timing | Industrial PLC Clocking |
|---|---|
|
Use Scenario: Synchronizing packet forwarding engines, MAC controllers, and PHY interfaces in Layer 2/3 Ethernet switches. IC Role / Device Role / Timing Role: Primary clock synthesizer generating independent 125 MHz, 25 MHz, and 100 MHz clocks from a single 25 MHz crystal. Use Value: Eliminates need for multiple discrete oscillators; reduces BOM count and board area while maintaining <150 fs RMS jitter on critical data-path clocks. |
Use Scenario: Providing deterministic timing for real-time I/O scanning, motion control loops, and HMI refresh in programmable logic controllers. IC Role / Device Role / Timing Role: System clock source delivering 66 MHz CPU clock, 33 MHz peripheral bus clock, and 1 MHz watchdog timer reference. Use Value: Flash-programmed configuration survives factory firmware updates; S2-controlled frequency switching enables runtime adaptation to different I/O module configurations. |
| Medical Imaging Data Acquisition | Test & Measurement Instrumentation |
|
Use Scenario: Clocking ADCs, FPGAs, and DDR memory in ultrasound beamforming modules requiring sub-nanosecond timing alignment. IC Role / Device Role / Timing Role: Low-jitter clock generator producing synchronized 100 MHz sampling clock and 50 MHz FPGA fabric clock from one crystal. Use Value: On-die linear load capacitors minimize frequency shift over temperature (±0.5 ppm/°C), ensuring consistent sampling accuracy across clinical operating ranges. |
Use Scenario: Supporting multi-channel signal generation and analysis in benchtop oscilloscopes and arbitrary waveform generators. IC Role / Device Role / Timing Role: Configurable clock hub distributing 10 MHz reference, 1 GHz sampling clock (via PLL multiplication), and 100 kHz sweep clock. Use Value: Serial reprogramming allows field calibration of output frequencies without hardware modification; SHUTDOWN/OE enables precise power sequencing during self-test modes. |
Equivalent & Alternatives
CY22393FXCT alternatives include devices with comparable three-PLL architecture, flash programmability, and TSSOP packaging.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si5338A-D-GM | Four-output, I²C-programmable; higher max output (350 MHz); requires external EEPROM for nonvolatile config | Better suited for RF sampling applications needing >200 MHz outputs; lacks S0/S1/S2 hardware switching | Select if higher frequency headroom and I²C compatibility are required; avoid if hardware-based glitch-free switching is mandatory |
| ICS843001AGI-01LFT | Three-output, fixed PLL ratios; no flash memory; uses external configuration pins only | Lower cost for static clock trees; no in-system reconfiguration capability | Select for cost-sensitive, unchanging clock requirements where serial programming adds unnecessary complexity |
Compared with Si5338A-D-GM and ICS843001AGI-01LFT, CY22393FXCT uniquely combines flash-based nonvolatile configuration, hardware-selectable frequency tables, and on-die linear crystal tuning-making it optimal for industrial and medical systems requiring field-upgradable, temperature-stable multi-clock synthesis without external components.
Availability
CY22393FXCT is available at Aetrix Electronics and suitable for network switch timing, industrial PLC clocking, medical imaging data acquisition, and test & measurement instrumentation requiring stable component supply, long-term lifecycle support, and commercial-temperature grade reliability.
Supply support for CY22393FXCT 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
Infineon Technologies acquired Cypress Semiconductor in 2020 and now owns and supports the full CY clock generator portfolio, including legacy Cypress timing products.
The CY22393FXCT belongs to Infineon's legacy Cypress clock generator family, designed specifically for cost-sensitive, multi-frequency embedded systems requiring flash-programmable flexibility and robust crystal oscillator performance without external tuning components.
FAQ
Can CY22393FXCT operate with a 1.8 V crystal input?
No. CY22393FXCT requires a 3.3 V supply and accepts only 3.3 V-compatible crystal or clock inputs. Its XTALIN input is not 1.8 V tolerant; applying 1.8 V may cause unreliable oscillation or damage. For 1.8 V systems, use a level-shifting buffer or select a dedicated low-voltage clock generator such as the Si5332.
Does CY22393FXCT support spread-spectrum clocking (SSC)?
No. The CY22393FXCT does not implement spread-spectrum modulation. Its PLLs are designed for fixed-frequency, low-jitter synthesis. For EMI reduction, use external SSC-capable clock sources or downstream clock buffers with SSC features-this device provides no built-in dithering or modulation control registers.
What is the maximum allowable crystal ESR for stable operation?
The datasheet specifies a maximum crystal ESR of 80 Ω for reliable start-up and sustained oscillation at 30 MHz. At lower frequencies (e.g., 8 MHz), ESR up to 120 Ω is acceptable. Exceeding these limits risks failure to start or intermittent oscillation, especially under temperature extremes or voltage droop conditions.
Is CyClocksRT™ software still supported for CY22393FXCT configuration?
Yes. Infineon maintains CyClocksRT™ v3.10+ as the official configuration tool for CY22393FXCT. It supports Windows 10/11, generates flash bitstreams, validates PLL lock margins, and exports register maps for integration into production programming workflows via standard SPI/I²C programmers.
CY22393FXCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Type:
- Clock Generator, Fanout Distribution
- PLL:
- Yes with Bypass
- Input:
- LVTTL, Crystal
- Output:
- CMOS
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 1:6
- Differential - Input:Output:
- No/No
- Frequency - Max:
- 200MHz
- Divider/Multiplier:
- Yes/No
- Voltage - Supply:
- 3.135V ~ 3.465V
- Operating Temperature:
- 0°C ~ 70°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-TSSOP
CY22393FXCT FAQ
1.How can I place an order for CY22393FXCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY22393FXCT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY22393FXCT reliable?
The price and inventory of CY22393FXCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY22393FXCT is usually 5 days.
3.What payment methods are accepted for CY22393FXCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY22393FXCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY22393FXCT?
CY22393FXCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY22393FXCT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY22393FXCT?
For technical support, including CY22393FXCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY22393FXCT requirements.
6.How does Aetrix verify that CY22393FXCT is sourced from the original manufacturer or authorized distributors?
All CY22393FXCT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY22393FXCT meets industry standards.
7.What is the process for return or replacement of CY22393FXCT?
All CY22393FXCT units undergo pre-shipment inspection (PSI). If there is an issue with CY22393FXCT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY22393FXCT part is unused and in its original packaging.
Return procedure for CY22393FXCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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