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Infineon Technologies CY2544QC013T
- Part No.:
- CY2544QC013T
- Manufacturer:
- Infineon Technologies
- Package:
- 24-UFQFN Exposed Pad
- Datasheet:
-
CY2544QC013T.pdf
- Description:
- IC CLOCK GENERATOR 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,830
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Product details
Overview
CY2544QC013T from Cypress Semiconductor is a quad-PLL programmable clock generator with spread spectrum capability, designed for high-precision timing synthesis in multi-clock domain systems. It delivers nine programmable LVCMOS outputs (3–166 MHz), supports 1.8 V input reference and 2.5/3.0/3.3 V output bank supplies, and integrates Fractional-N PLLs for zero-PPM frequency error-used in PC motherboard clock trees and embedded networking controllers.
For engineers reviewing the CY2544QC013T datasheet, CY2544QC013T pinout, CY2544QC013T application, or CY2544QC013T equivalent, key selection criteria include its 24-pin QFN package, independent 3-bank voltage control (1.8/2.5/3.0/3.3 V), glitch-free frequency switching via FS0–FS2, dual spread-spectrum PLLs (PLL3/PLL4), and one-time programmability for EMI-optimized clock profiles.
Technical Context
The CY2544QC013T implements four fully independent Fractional-N PLLs-two with spread spectrum (PLL3, PLL4) using Lexmark or Linear modulation-and accepts either an 8–48 MHz crystal (XIN/EXCLKIN) or 8–166 MHz external clock (CLKIN) as reference. Its crossbar switch enables arbitrary routing of any PLL or reference source to any of nine outputs.
Three output banks (Bank1: CLK1–CLK3; Bank2: CLK4–CLK6; Bank3: CLK7–CLK9) each support independent VDD_CLK_Bx supply (1.8/2.5/3.0/3.3 V), enabling mixed-voltage clock distribution. Glitch-free switching is achieved through synchronous divider reconfiguration under FS0–FS2 control, preserving system timing integrity during dynamic frequency changes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PLL Count | Four independent Fractional-N PLLs; enables simultaneous synthesis of unrelated frequencies from single reference. |
| Output Count & Type | Nine LVCMOS clock outputs; individually assignable to PLL1–PLL4, XIN, or CLKIN via crossbar switch. |
| Frequency Range | 3–166 MHz output; supports nonstandard frequencies with zero-PPM accuracy via fractional division. |
| Spread Spectrum | Center-spread (±0.125% to ±2.5%) or down-spread (–0.25% to –5.0%) on PLL3/PLL4; reduces EMI peak amplitude. |
| Input Reference | Crystal: 8–48 MHz at XIN/EXCLKIN; external clock: 8–166 MHz at CLKIN; 1.8 V logic level for CY2544 variant. |
| Supply Voltages | VDD = 2.5/3.0/3.3 V; three independent output bank supplies (VDD_CLK_B1/B2/B3) configurable to 1.8/2.5/3.0/3.3 V. |
| Package | 24-pin QFN (4×4 mm, 0.5 mm pitch); thermally enhanced for stable operation across commercial temperature range. |
Pinout & Package
24-pin QFN (4×4 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad. Pin 1 marked by top-side dot; pins arranged counterclockwise starting from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 12, 18, 19, GND | Power Ground | Six dedicated ground connections minimize noise coupling between PLLs and output banks. |
| 2, 6, 8, 11, 13, 15, 17, 20, CLK1–CLK9 | Programmable Clock Output | LVCMOS outputs with per-bank voltage control; CLK3/CLK4/CLK7 are multifunction (output/input). |
| 3, 14, 16, VDD_CLK_B1/B2/B3 | Output Bank Supply | Independent power rails for each output bank enable mixed-voltage clocking without level shifters. |
| 4, PD#/OE | Power-Down / Output Enable | Configurable active-low control: full chip shutdown (PD#) or selective clock gating (OE). |
| 9, 10, OE/FS1, CLK4/FS2 | Frequency Select Input | FS0 (CLK3), FS1 (OE/FS1), FS2 (CLK4/FS2) select among eight preprogrammed frequency sets per PLL. |
| 21, CLKIN | External Reference Input | 1.8 V LVCMOS-compatible 8–166 MHz clock input; requires valid EXCLKIN signal for proper operation. |
| 23, XOUT | Crystal Oscillator Output | Drives external crystal; used only with crystal mode (XIN/EXCLKIN as 8–48 MHz resonator input). |
| 24, XIN/EXCLKIN | Crystal or External Clock Input | Primary reference input: crystal (8–48 MHz) or external clock (1.8 V LVCMOS, 8–166 MHz). |
Key Features
| Feature | Design Value |
|---|---|
| Quad Fractional-N PLL Architecture | Enables precise synthesis of up to four unrelated frequencies from one reference, eliminating need for multiple oscillators. |
| Per-Bank Voltage Programmability | Three independent VDD_CLK_Bx supplies allow concurrent 1.8 V, 2.5 V, and 3.3 V clock outputs on same device. |
| Glitch-Free Frequency Switching | FS0–FS2 controlled divider reconfiguration ensures no runt pulses or phase discontinuities during clock rate changes. |
| One-Time Programmable NVM | Stores custom PLL coefficients, spread spectrum settings, drive strength, and crystal load capacitance permanently. |
| Dual Spread-Spectrum PLLs | PLL3 and PLL4 support user-selectable center/down spread with Lexmark/Linear profiles for targeted EMI reduction. |
Applications
| PC Motherboard Clock Tree | Network Interface Controller (NIC) |
|---|---|
|
Use Scenario: Generating synchronized clocks for CPU, memory controller, PCIe, SATA, and USB subsystems on x86-based motherboards. IC Role / Device Role / Timing Role: Central clock generator providing nine low-jitter, independently voltage-configurable outputs with spread spectrum on critical buses. Use Value: Eliminates discrete clock ICs and reduces BOM count while meeting Intel Platform Environment Control (PECI) jitter specs (<150 fs RMS). |
Use Scenario: Delivering precise, EMI-compliant clocks to 1/10/25 GbE PHYs, MACs, and packet buffer interfaces in enterprise switches. IC Role / Device Role / Timing Role: Multi-PLL timing hub synchronizing data paths across SerDes lanes, MAC logic, and management interfaces. Use Value: Center-spread on PLL3 reduces 125 MHz Ethernet reference harmonics by >10 dB, easing FCC Class B compliance. |
| Industrial PLC Backplane | Embedded Media Gateway |
|
Use Scenario: Providing isolated, voltage-matched clocks to FPGA I/O banks, ADC/DAC sampling engines, and real-time Ethernet controllers. IC Role / Device Role / Timing Role: Deterministic clock source with programmable drive strength and bank-level voltage control for mixed-signal backplane timing. Use Value: Independent VDD_CLK_Bx rails prevent cross-talk between analog and digital clock domains; glitch-free switching supports runtime reconfiguration. |
Use Scenario: Driving audio codec, video processor, and wireless SoC clocks in set-top boxes and streaming gateways. IC Role / Device Role / Timing Role: Single-chip clock synthesizer delivering 24.576 MHz (audio), 27 MHz (video), and 40/80 MHz (Wi-Fi) simultaneously. Use Value: Fractional-N PLLs achieve exact frequencies without external VCXOs; spread spectrum on video clock lowers radiated emissions near HDMI ports. |
Equivalent & Alternatives
CY2544QC013T has two confirmed functional alternatives with documented compatibility and defined trade-offs:
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si5332A-D-GM | Multi-output clock generator with integrated jitter cleaners; higher integration but requires external configuration EEPROM. | Superior jitter performance (<80 fs RMS) and wider frequency range (0.002–350 MHz), but lacks one-time programmability. | Select for ultra-low-jitter applications where external configuration and higher cost are acceptable. |
| ICS843002AGI-01LFT | Quad-PLL clock generator with similar 9-output architecture; fixed 3.3 V core and I/O supply, no spread spectrum. | Lower EMI mitigation capability; suitable only where spread spectrum is not required and 3.3 V-only operation is acceptable. | Select when legacy 3.3 V system design prohibits mixed-voltage clocking and EMI reduction is handled externally. |
Compared with Si5332A-D-GM and ICS843002AGI-01LFT, CY2544QC013T uniquely combines one-time programmability, per-bank voltage flexibility, and dual spread-spectrum PLLs in a compact QFN-making it optimal for cost-sensitive, EMI-constrained, mixed-voltage embedded platforms requiring field-programmable timing.
Availability
CY2544QC013T is available at Aetrix Electronics and suitable for PC motherboard design, industrial PLC backplane timing, and embedded media gateway development requiring stable component supply and long-term lifecycle support.
Supply support for CY2544QC013T 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) designs high-performance timing, memory, and microcontroller solutions for computing, communications, and industrial markets.
CY2544 belongs to Cypress's programmable clock generator product line, engineered specifically for EMI-aware, multi-domain clock synthesis in space-constrained, mixed-voltage systems with stringent jitter and configurability requirements.
FAQ
What is the maximum output frequency supported by CY2544QC013T?
CY2544QC013T supports output frequencies from 3 MHz to 166 MHz across all nine clock outputs. This range is achievable using its four Fractional-N PLLs and programmable output dividers, with guaranteed performance validated per AC Electrical Specifications in the official datasheet (Document Number: 001-12563 Rev. *M).
Does CY2544QC013T require external programming hardware?
No-CY2544QC013T features one-time programmable (OTP) nonvolatile memory. Final configuration (PLL coefficients, spread spectrum parameters, drive strength, etc.) is written once using Cypress's ClockBuilder Desktop software and standard USB-to-I²C adapter; no in-system programming hardware is needed after initial setup.
Can CY2544QC013T operate with a 1.8 V VDD supply?
No-CY2544QC013T is the 2.5/3.0/3.3 V VDD variant (CY2544 series). It uses an internal regulator to derive 1.8 V core voltage from the 2.5/3.0/3.3 V VDD supply at pin 22. The 1.8 V VDD version is CY2546, not CY2544QC013T.
How many spread-spectrum-capable PLLs does CY2544QC013T have?
CY2544QC013T has two spread-spectrum-capable PLLs: PLL3 and PLL4. Each supports both center-spread (±0.125% to ±2.5%) and down-spread (–0.25% to –5.0%) modes with selectable Lexmark or Linear modulation profiles, controlled via the CLK7/SSON multifunction pin.
CY2544QC013T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 24-UFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Clock Generator
- PLL:
- Yes with Bypass
- Input:
- LVCMOS, Crystal
- Output:
- Clock
- Number of Circuits:
- 4
- Ratio - Input:Output:
- 1:9
- Differential - Input:Output:
- No/No
- Frequency - Max:
- 166MHz
- Divider/Multiplier:
- Yes/No
- Voltage - Supply:
- 2.25V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 24-QFN (4x4)
CY2544QC013T FAQ
1.How can I place an order for CY2544QC013T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY2544QC013T 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 CY2544QC013T reliable?
The price and inventory of CY2544QC013T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY2544QC013T is usually 5 days.
3.What payment methods are accepted for CY2544QC013T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY2544QC013T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY2544QC013T?
CY2544QC013T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY2544QC013T 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 CY2544QC013T?
For technical support, including CY2544QC013T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY2544QC013T requirements.
6.How does Aetrix verify that CY2544QC013T is sourced from the original manufacturer or authorized distributors?
All CY2544QC013T 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 CY2544QC013T meets industry standards.
7.What is the process for return or replacement of CY2544QC013T?
All CY2544QC013T units undergo pre-shipment inspection (PSI). If there is an issue with CY2544QC013T, 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 CY2544QC013T part is unused and in its original packaging.
Return procedure for CY2544QC013T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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