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Infineon Technologies CY2304NZZXI-1T
- Part No.:
- CY2304NZZXI-1T
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Clock/Timing
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CY2304NZZXI-1T.pdf
- Description:
- IC CLK ZDB 4OUT 140MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,284
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Product details
Overview
CY2304NZZXI-1T 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 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 CY2304NZZXI-1T datasheet, CY2304NZZXI-1T pinout, CY2304NZZXI-1T application, or CY2304NZZXI-1T equivalent, key selection criteria include output skew budget, industrial-grade thermal performance (θJA = 165 °C/W), OE-controlled output enable functionality, and TSSOP-8 footprint compatibility with legacy PCI-X clock tree layouts.
Technical Context
The CY2304NZZXI-1T implements a single-input, quad-output fanout buffer with active-HIGH output enable (OE) logic controlling all four outputs simultaneously. Its internal architecture delivers matched propagation paths to ensure sub-100 ps output skew across full frequency range.
It operates strictly at 3.3 V (3.0–3.6 V), supports load capacitance up to 25 pF per output, and guarantees 2.5–5 ns propagation delay (BUF_IN rising edge to OUTPUT rising edge) with 40–60% duty cycle preservation at 140 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0–3.6 V - Ensures stable operation under industrial rail tolerances without external regulation. |
| Max Operating Frequency | 140 MHz - Supports full-speed PCI-X 133 MHz and high-end peripheral clocking. |
| Output-to-Output Skew | 60 ps typical / 100 ps max - Enables synchronous sampling across multiple downstream devices. |
| Propagation Delay | 2.5–5 ns - Predictable timing margin for setup/hold calculations in clock-forwarding designs. |
| Input Threshold | VDD/2 - Compatible with standard 3.3 V CMOS logic families without level translation. |
| Thermal Resistance θJA | 165 °C/W - Validates suitability for compact PCB layouts without forced airflow. |
Pinout & Package
Package: 8-pin TSSOP (4.40 mm body width), lead-free, tape-and-reel packaging (CY2304NZZXI-1T).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: BUF_IN | Primary clock input | Single-ended CMOS input referenced to VDD/2; accepts DC–140 MHz signals. |
| 2: OE | Output enable control | Active-HIGH logic; drives all four outputs to high-impedance when LOW. |
| 3: OUTPUT1 | Buffered clock output | CMOS-compatible output with 24 mA drive strength and matched delay path. |
| 4: GND | Ground reference | Dedicated ground pin minimizes noise coupling between input and outputs. |
| 5: OUTPUT4 | Buffered clock output | Electrically identical to OUTPUT1–3; contributes to <100 ps inter-output skew. |
| 6: VDD | Power supply | 3.3 V supply pin; requires local 0.1 µF decoupling per datasheet layout guidelines. |
| 7: OUTPUT3 | Buffered clock output | One of four synchronized outputs; pin placement enables orthogonal routing on dense boards. |
| 8: OUTPUT2 | Buffered clock output | Final buffered output; pin location adjacent to VDD supports low-inductance power delivery. |
Key Features
| Feature | Design Value |
|---|---|
| Quad-output fanout | Drives four independent loads with matched delay-eliminates need for discrete buffer cascading. |
| Industrial temperature range | –40 °C to +85 °C operation validated per JEDEC JESD22-A104 - suitable for server chassis and industrial controllers. |
| Low output skew | ≤60 ps typical skew ensures simultaneous edge arrival across all outputs - critical for multi-lane synchronization. |
| Output enable control | Single-pin OE disables all outputs to high-Z - enables dynamic clock gating without external logic. |
| Small-footprint packaging | 8-pin TSSOP occupies <12 mm² PCB area - reduces board space vs. SOIC-8 or QFN alternatives. |
Applications
| PCI-X Server Backplane Clock Distribution | Industrial PLC Timing Module |
|---|---|
Use Scenario: Distributing 133 MHz PCI-X reference clock to multiple slot connectors on a backplane. IC Role / Device Role / Timing Role: Fanout buffer providing low-skew, impedance-matched clock replication with OE-based hot-plug isolation. Use Value: Eliminates timing violations caused by trace-length mismatches; OE allows safe insertion/removal of add-in cards without clock glitches. | Use Scenario: Synchronizing real-time I/O modules and motion control ASICs in programmable logic controllers. IC Role / Device Role / Timing Role: Central clock distributor delivering phase-aligned clocks to FPGA, ADC, and PWM peripherals. Use Value: Sub-100 ps skew ensures deterministic sampling across analog and digital subsystems operating at 100+ MHz. |
| Embedded Network Switch Timing | Test Equipment Reference Clock Tree |
Use Scenario: Driving clock inputs of multiple Ethernet PHYs and packet processors in Layer-2/Layer-3 switches. IC Role / Device Role / Timing Role: General-purpose clock buffer replicating 125 MHz SerDes reference clock with minimal jitter addition. Use Value: Maintains signal integrity across 4–8 PHYs; 3.3 V CMOS outputs interface directly with PHY clock inputs without level shifters. | Use Scenario: Building calibrated clock distribution networks in automated test equipment (ATE) mainframes. IC Role / Device Role / Timing Role: Precision fanout stage feeding multiple instrument timing ICs and DACs from a master OCXO source. Use Value: 60 ps typical skew enables sub-nanosecond timestamp alignment across measurement channels. |
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 | 5 V supply only; 3.3 V tolerant inputs; 100 ps max skew; SOIC-8 package | Requires 5 V rail; not drop-in compatible with 3.3 V-only systems | Select only if existing design uses 5 V infrastructure and SOIC-8 footprint is preferred. |
| ON Semi NB3N502MNG | 3.3 V operation; LVCMOS outputs; 150 ps max skew; 8-pin SOIC | Higher skew limits use in high-speed PCI-X; SOIC-8 increases board area vs. TSSOP | Acceptable for lower-frequency industrial control where <100 ps skew is not required. |
Compared with IDT 5V2310APG and ON Semi NB3N502MNG, CY2304NZZXI-1T uniquely combines 3.3 V native operation, 60 ps typical skew, and space-saving TSSOP-8 packaging-making it optimal for new industrial and server designs constrained by voltage, timing, and footprint.
Availability
CY2304NZZXI-1T is available at Aetrix Electronics and suitable for PCI-X server backplanes, industrial PLC timing modules, and embedded network switch timing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY2304NZZXI-1T 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 system-on-chip solutions for industrial, automotive, and communications markets.
The CY2304NZ family targets cost-sensitive, high-volume clock distribution needs in PCI-X, embedded computing, and industrial control-emphasizing low skew, industrial temperature support, and pin-efficient packaging.
FAQ
Is CY2304NZZXI-1T pin-compatible with CY2304NZZI-1?
Yes. Both share identical 8-pin TSSOP pinout, electrical specifications, and functional behavior. The "T" suffix denotes tape-and-reel packaging; the base device (CY2304NZZI-1) is tube-packaged. No PCB redesign is needed when switching between them.
Does CY2304NZZXI-1T support spread-spectrum clocking?
No. The CY2304NZZXI-1T is a fixed-frequency fanout buffer with no internal modulation circuitry. It preserves input duty cycle and edge rates but does not generate or accept spread-spectrum control signals.
What is the maximum capacitive load per output?
The datasheet specifies a maximum load capacitance of 25 pF per output. Exceeding this may increase rise/fall times beyond 1.5 ns and degrade output-to-output skew performance, especially above 100 MHz.
Can OE be left unconnected in always-enabled operation?
No. OE must be actively driven HIGH (≥2.0 V) for normal operation. Leaving OE floating risks indeterminate output states due to noise susceptibility; a 10 kΩ pull-up resistor to VDD is recommended for default-enable configurations.
CY2304NZZXI-1T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
CY2304NZZXI-1T FAQ
1.How can I place an order for CY2304NZZXI-1T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY2304NZZXI-1T 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 CY2304NZZXI-1T reliable?
The price and inventory of CY2304NZZXI-1T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY2304NZZXI-1T is usually 5 days.
3.What payment methods are accepted for CY2304NZZXI-1T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY2304NZZXI-1T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY2304NZZXI-1T?
CY2304NZZXI-1T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY2304NZZXI-1T 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 CY2304NZZXI-1T?
For technical support, including CY2304NZZXI-1T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY2304NZZXI-1T requirements.
6.How does Aetrix verify that CY2304NZZXI-1T is sourced from the original manufacturer or authorized distributors?
All CY2304NZZXI-1T 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 CY2304NZZXI-1T meets industry standards.
7.What is the process for return or replacement of CY2304NZZXI-1T?
All CY2304NZZXI-1T units undergo pre-shipment inspection (PSI). If there is an issue with CY2304NZZXI-1T, 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 CY2304NZZXI-1T part is unused and in its original packaging.
Return procedure for CY2304NZZXI-1T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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