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Infineon Technologies CY2304NZZI-1
- Part No.:
- CY2304NZZI-1
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Clock/Timing
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CY2304NZZI-1.pdf
- Description:
- IC CLK ZDB 4OUT 140MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,089
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Product details
Overview
CY2304NZZI-1 from Cypress Semiconductor is a 3.3 V, four-output clock buffer optimized for PCI-X and general-purpose clock distribution. It accepts a single input (BUF_IN) and drives four CMOS-compatible outputs with ≤60 ps typical output-to-output skew, DC–140 MHz operation, and industrial temperature range (–40 °C to +85 °C), deployed in server backplanes and embedded control timing trees.
For engineers reviewing the CY2304NZZI-1 datasheet, CY2304NZZI-1 pinout, CY2304NZZI-1 application, or CY2304NZZI-1 equivalent, key selection criteria include output skew budget, 3.3 V supply compatibility, OE-controlled output enable functionality, TSSOP-8 thermal performance (θJA = 165 °C/W), and industrial-grade reliability for mission-critical clock fanout.
Technical Context
The CY2304NZZI-1 implements a simple but high-fidelity clock fanout architecture with no internal PLL or frequency synthesis-input clock passes directly to all four outputs through low-skew buffers. Its OE pin enables synchronous disabling of all outputs to reduce system-level noise during idle states.
All outputs are rail-to-rail CMOS, specified for 24 mA drive strength at VOL ≤ 0.8 V and VOH ≥ 2.0 V under load, with propagation delay tightly controlled (2.5–5 ns) and duty cycle maintained within 40–60% across 1–140 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0–3.6 V - ensures compatibility with standard 3.3 V logic rails and tolerance to board-level ripple. |
| Max Operating Frequency | 140 MHz - supports full-speed PCI-X 133 MHz and high-end microcontroller clock distribution. |
| Output-to-Output Skew | 60 ps typical / 100 ps max - guarantees tight phase alignment across four downstream clocks for synchronous bus interfaces. |
| Propagation Delay | 2.5–5 ns - enables predictable timing closure in multi-clock-domain systems with minimal added latency. |
| Operating Temperature | –40 °C to +85 °C - validated for industrial environments including base station control cards and industrial PLCs. |
| Output Drive Strength | ±24 mA - sufficient to drive 50 Ω transmission lines or multiple CMOS inputs without external termination. |
| Input Threshold | VDD/2 - simplifies interface with standard 3.3 V LVCMOS sources without level-shifting. |
Pinout & Package
Package: 8-pin TSSOP (4.4 mm body width), lead-free, industrial temperature grade.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: BUF_IN | Clock Input | Single-ended CMOS clock source; threshold at VDD/2; accepts DC–140 MHz signals. |
| 2: OE | Output Enable | Active-HIGH control; asserts high to enable all four outputs; pulls low to force outputs to high-impedance state. |
| 3: OUTPUT1 | Buffered Clock Output | CMOS output with 24 mA drive; synchronized to BUF_IN with <5 ns propagation delay. |
| 4: GND | Ground Reference | Primary return path for supply and signal currents; must be low-inductance connection to minimize noise coupling. |
| 5: OUTPUT4 | Buffered Clock Output | Electrically identical to OUTPUT1–3; contributes to ≤100 ps output-to-output skew specification. |
| 6: VDD | Power Supply | 3.3 V nominal supply; requires local 0.1 µF ceramic decoupling adjacent to pin. |
| 7: OUTPUT3 | Buffered Clock Output | One of four matched outputs; pin placement minimizes trace-length mismatch on PCB layout. |
| 8: OUTPUT2 | Buffered Clock Output | Final buffered output; shares same electrical characteristics and timing behavior as other outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Four matched CMOS outputs | Enables simultaneous clock distribution to multiple ASICs/FPGAs without inter-output timing violation. |
| Output enable (OE) control | Allows dynamic power gating of clock tree to reduce standby current and EMI during idle cycles. |
| Low 60 ps typical output skew | Supports PCI-X 133 MHz timing margins where skew <100 ps is required between address/control clocks. |
| Industrial temperature rating | Validated operation from –40 °C to +85 °C ensures reliability in uncontrolled ambient environments. |
| 8-pin TSSOP footprint | Minimizes PCB area while maintaining manufacturability and thermal dissipation (θJA = 165 °C/W). |
Applications
| PCI-X Server Backplane | Industrial PLC Timing Module |
|---|---|
Use Scenario: Distributing 133 MHz PCI-X reference clock to multiple slot connectors on a server motherboard. IC Role / Device Role / Timing Role: Fanout buffer ensuring sub-100 ps skew across four downstream clock domains for synchronous bus arbitration. Use Value: Meets PCI-X specification skew requirement while eliminating need for discrete resistor networks or additional buffering stages. | Use Scenario: Providing synchronized 50–100 MHz clocks to dual-core microcontrollers and FPGA-based I/O expansion modules. IC Role / Device Role / Timing Role: Central timing hub generating phase-aligned clocks for real-time deterministic control loops. Use Value: Enables precise inter-device synchronization without external delay-matching components or calibration. |
| Embedded Network Switch | Test Equipment Clock Tree |
Use Scenario: Driving clocks to multiple PHYs and MAC controllers in a Layer-2 Ethernet switch ASIC design. IC Role / Device Role / Timing Role: Low-jitter, low-skew clock repeater isolating upstream oscillator from capacitive loading of multiple PHYs. Use Value: Prevents oscillator frequency pulling and maintains signal integrity across 4–8 parallel clock paths. | Use Scenario: Generating four precisely aligned test clocks for multi-channel digital pattern generators or logic analyzers. IC Role / Device Role / Timing Role: Reference clock distributor delivering matched-edge timing to independent channel timing ICs. Use Value: Eliminates channel-to-channel timing drift in high-speed automated test equipment (ATE) systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar clock buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT 5V2310APG | 3.3 V, 4-output, but uses LVCMOS/LVTTL mixed I/O; higher IDD (35 mA typical); no OE pin. | Lacks output enable; less suitable for dynamic clock gating in power-sensitive systems. | Select when OE functionality is unnecessary and legacy LVTTL compatibility is required. |
| ON Semi NB3N502MNR2G | 3.3 V, 4-output; includes internal 50 Ω series termination; lower skew (45 ps typ); no OE. | Optimized for point-to-point HCSL/LVDS-like loads; not intended for multi-drop CMOS fanout. | Prefer for high-speed serial link clocking where on-die termination reduces layout complexity. |
Compared with IDT 5V2310APG and ON Semi NB3N502MNR2G, the CY2304NZZI-1 uniquely combines industrial temperature support, active-high OE control, and guaranteed 100 ps max skew in an industry-standard TSSOP-8 package-making it optimal for PCI-X and general-purpose CMOS clock fanout where configurability and robustness are prioritized over ultra-low skew or integrated termination.
Availability
CY2304NZZI-1 is available at Aetrix Electronics and suitable for PCI-X server backplanes, industrial PLC timing modules, and embedded network switches requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY2304NZZI-1 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 programmable solutions for industrial, automotive, and communications markets.
The CY2304NZ family targets cost-sensitive, high-reliability clock distribution in infrastructure and control systems-emphasizing low skew, industrial temperature operation, and pin-compatible scalability across buffer configurations.
FAQ
What is the function of the OE pin on CY2304NZZI-1?
The OE (Output Enable) pin is an active-HIGH control that enables or disables all four outputs simultaneously. When OE is logic HIGH, outputs reflect the BUF_IN signal with specified timing; when OE is LOW, all outputs enter high-impedance state. This allows dynamic clock gating to reduce system power and EMI during idle periods without affecting the input clock source.
Can CY2304NZZI-1 operate at 2.5 V supply?
No. CY2304NZZI-1 is specified only for 3.0–3.6 V operation per its Absolute Maximum Ratings and Electrical Characteristics tables. Operation below 3.0 V violates the minimum supply requirement and may result in undefined output behavior, increased skew, or failure to meet propagation delay specifications. It is not compatible with 2.5 V or 1.8 V logic families.
Is external termination required for CY2304NZZI-1 outputs?
No external termination is required for standard CMOS loads. The device drives 24 mA into resistive loads and is designed for direct connection to CMOS inputs or short PCB traces. For longer traces (>10 cm) or transmission-line routing, series or parallel termination may be needed-but this is layout-dependent, not device-mandated. The datasheet specifies performance with CL = 25 pF, matching typical CMOS input capacitance.
Does CY2304NZZI-1 support spread-spectrum clocking (SSC)?
No. CY2304NZZI-1 is a passive fanout buffer with no internal modulation circuitry or SSC input capability. It preserves the duty cycle and jitter profile of the input clock (BUF_IN) without modification. Spread-spectrum functionality must be implemented upstream-e.g., by the oscillator or clock generator feeding BUF_IN-and the buffer will replicate the modulated waveform within its specified bandwidth (DC–140 MHz).
CY2304NZZI-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- PLL:
- No
- Main Purpose:
- PCI Express (PCIe)
- Input:
- LVCMOS, LVTTL
- Output:
- LVCMOS
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 1:4
- Differential - Input:Output:
- No/No
- Frequency - Max:
- 140MHz
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-TSSOP
CY2304NZZI-1 FAQ
1.How can I place an order for CY2304NZZI-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY2304NZZI-1 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 CY2304NZZI-1 reliable?
The price and inventory of CY2304NZZI-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY2304NZZI-1 is usually 5 days.
3.What payment methods are accepted for CY2304NZZI-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY2304NZZI-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY2304NZZI-1?
CY2304NZZI-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY2304NZZI-1 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 CY2304NZZI-1?
For technical support, including CY2304NZZI-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY2304NZZI-1 requirements.
6.How does Aetrix verify that CY2304NZZI-1 is sourced from the original manufacturer or authorized distributors?
All CY2304NZZI-1 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 CY2304NZZI-1 meets industry standards.
7.What is the process for return or replacement of CY2304NZZI-1?
All CY2304NZZI-1 units undergo pre-shipment inspection (PSI). If there is an issue with CY2304NZZI-1, 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 CY2304NZZI-1 part is unused and in its original packaging.
Return procedure for CY2304NZZI-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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