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Infineon Technologies CY2304NZZXC-1T
- Part No.:
- CY2304NZZXC-1T
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Clock/Timing
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CY2304NZZXC-1T.pdf
- Description:
- IC CLK ZDB 4OUT 140MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,007
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Product details
Overview
CY2304NZZXC-1T from Cypress Semiconductor is a 3.3 V, four-output clock buffer optimized for PCI-X and general-purpose timing distribution. It supports DC–140 MHz input frequencies, delivers ≤60 ps typical output-to-output skew, and operates across 0 °C to 70 °C commercial temperature range in an 8-pin TSSOP package - deployed in server motherboard clock trees and peripheral interface timing subsystems.
For engineers reviewing the CY2304NZZXC-1T datasheet, CY2304NZZXC-1T pinout, CY2304NZZXC-1T application, or CY2304NZZXC-1T equivalent, key selection criteria include output skew budget, 3.3 V supply compatibility, industrial-grade thermal resistance (θJA = 165 °C/W), OE-controlled output enable functionality, and TSSOP-8 footprint constraints for high-density PCB layouts.
Technical Context
The CY2304NZZXC-1T implements a single-input, four-output fanout architecture with active-HIGH output enable (OE) control and CMOS-compatible input threshold (VDD/2). All outputs are internally matched for low skew and driven with rail-to-rail swing under 24 mA load.
It is characterized over 1–140 MHz at 3.0–3.6 V supply and 0–70 °C ambient, with propagation delay (2.5–5 ns) and rise/fall times (≤1.5 ns) guaranteed by design and characterization - not 100% production tested per unit.
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 voltage ripple |
| Input Frequency Range | DC to 140 MHz - supports PCI-X 133 MHz, PCIe reference clocks, and legacy parallel bus timing |
| Output-to-Output Skew | 60 ps typical / 100 ps max - enables synchronous sampling across multiple downstream devices without added deskew circuitry |
| Propagation Delay | 2.5–5 ns - defines worst-case timing margin between input edge and earliest output edge |
| Load Capacitance | 25 pF - specifies maximum trace + IC input capacitance per output before signal integrity degradation |
| Operating Temperature | 0 °C to 70 °C - validated for commercial-grade computing and peripheral applications, not extended industrial use |
Pinout & Package
Package: 8-pin TSSOP (4.40 mm body width), lead-free, RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: BUF_IN | Clock input | Single-ended CMOS input with VDD/2 threshold; accepts DC–140 MHz signals |
| 2: OE | Output enable | Active-HIGH control; drives all four outputs to high-impedance when LOW |
| 3: OUTPUT1 | Buffered clock output | CMOS output capable of driving 24 mA sink/source into 25 pF load |
| 4: GND | Ground reference | Common return path for supply and signal currents; must be low-inductance connection |
| 5: OUTPUT4 | Buffered clock output | Electrically identical to OUTPUT1–3; matched routing critical for skew control |
| 6: VDD | Power supply | 3.3 V supply pin; requires local 0.1 µF ceramic decoupling adjacent to pin |
| 7: OUTPUT3 | Buffered clock output | One of four synchronized outputs; pin position minimizes trace length asymmetry |
| 8: OUTPUT2 | Buffered clock output | Final output in pinout sequence; layout symmetry with OUTPUT1 reduces inter-output skew |
Key Features
| Feature | Design Value |
|---|---|
| Four matched CMOS outputs | Enables simultaneous clocking of multiple ASICs/FPGAs without external fanout or buffering |
| 60 ps typical output skew | Reduces timing uncertainty across memory controllers, I/O bridges, and PCI-X peripherals |
| OE-controlled three-state outputs | Allows dynamic clock gating during system sleep or configuration phases without external logic |
| 140 MHz max frequency support | Covers PCI-X 133 MHz (133.33 MHz) with margin for jitter and PVT variation |
| 3.3 V single-supply operation | Eliminates need for level-shifting or dual supplies in legacy 3.3 V system designs |
Applications
| PCI-X Server Backplane Timing | Embedded Control Plane Clock Distribution |
|---|---|
Use Scenario: Distributing 133 MHz PCI-X reference clock across multiple slots and bridge chips on a 2U server motherboard. IC Role / Device Role / Timing Role: Primary clock fanout buffer ensuring phase-aligned delivery to all downstream PCI-X agents. Use Value: 60 ps typical skew maintains setup/hold margins across 12+ inch backplane traces and multiple receiver inputs. | Use Scenario: Providing synchronized clocks to FPGA fabric, microcontroller peripherals, and ADC/DAC interfaces in an industrial PLC controller. IC Role / Device Role / Timing Role: General-purpose clock repeater isolating sensitive analog and digital domains from shared clock source noise. Use Value: OE pin allows runtime clock disable to reduce EMI during idle states while preserving timing integrity on wake-up. |
| Legacy Peripheral Interface Synchronization | Multi-Chip Module Reference Clock Fanout |
Use Scenario: Driving clock inputs of SATA PHY, USB 2.0 transceivers, and PCIe endpoint controllers from a common 100 MHz oscillator. IC Role / Device Role / Timing Role: Low-skew clock distributor enabling mixed-interface coexistence on compact embedded carrier boards. Use Value: 1.5 ns max rise/fall time preserves edge fidelity across disparate loads, minimizing duty cycle distortion. | Use Scenario: Feeding identical clock signals to four die in a stacked SiP package where inter-die skew must be sub-100 ps. IC Role / Device Role / Timing Role: On-package timing hub delivering phase-coherent clocks to heterogeneous compute and I/O dies. Use Value: TSSOP-8 footprint and matched internal paths meet tight skew requirements without requiring custom silicon solutions. |
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; 100 MHz max frequency; 150 ps max skew | Not suitable for 3.3 V systems or >100 MHz PCI-X; requires level translation | Select only if legacy 5 V infrastructure and lower-frequency operation are fixed constraints |
| ON Semi NB3N3010BDR2G | 3.3 V supply; 133 MHz max; 75 ps max skew; integrated termination resistors | Better for point-to-point DDR clocking but lacks OE control and has higher skew than CY2304NZZXC-1T | Prefer when board space is limited and termination integration offsets need for external resistors |
Compared with IDT 5V2310APG and ON Semi NB3N3010BDR2G, the CY2304NZZXC-1T offers superior skew performance (60 ps typ) and native 3.3 V compatibility - making it optimal for PCI-X 133 MHz fanout where timing margin and supply simplicity are critical.
Availability
CY2304NZZXC-1T is available at Aetrix Electronics and suitable for PCI-X server timing, embedded control plane synchronization, and legacy peripheral interface clock distribution requiring stable component supply and commercial-temperature grade reliability.
Supply support for CY2304NZZXC-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 computing, automotive, and industrial markets.
The CY2304NZ family targets cost-sensitive, high-volume clock distribution in PCI-X, PCI, and general-purpose digital systems - emphasizing low skew, 3.3 V compatibility, and TSSOP packaging for mainstream PCB assembly.
FAQ
What is the minimum supply voltage required for reliable operation of CY2304NZZXC-1T?
The CY2304NZZXC-1T operates reliably down to 3.0 V per its specified operating conditions. Below this voltage, propagation delay increases, output drive strength degrades, and input threshold (VDD/2) shifts - potentially causing metastability or failure to meet 140 MHz timing. Designers must ensure power rail regulation stays within 3.0–3.6 V across all load and temperature conditions.
Does CY2304NZZXC-1T support spread-spectrum clocking (SSC)?
No, the CY2304NZZXC-1T does not support spread-spectrum clocking. Its internal buffer architecture provides fixed-phase, low-jitter fanout without modulation capability. For SSC applications, designers must apply spread-spectrum input externally - though doing so introduces deterministic phase variation that may exceed skew budgets in tightly synchronized systems.
Can OE be left unconnected or tied to VDD permanently?
No - OE must be actively driven HIGH or LOW. Leaving OE floating risks indeterminate output states due to noise coupling, potentially causing bus contention or unintended clock pulses. If always-enabled operation is required, OE should be hard-wired to VDD via a short trace; if dynamic control is unnecessary, a 10 kΩ pull-up resistor to VDD is acceptable for robustness against ESD transients.
Is thermal derating required for continuous operation at 85 °C ambient?
Yes - although the CY2304NZZXC-1T is rated for 0–70 °C commercial operation, junction temperature must remain ≤150 °C. At 85 °C ambient, even with θJA = 165 °C/W, power dissipation must stay below 40 mW (calculated as (150–85)/165). This limits usable frequency/load combinations; full-speed operation at elevated ambient requires enhanced PCB copper pour or forced airflow.
CY2304NZZXC-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:
- 0°C ~ 70°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-TSSOP
CY2304NZZXC-1T FAQ
1.How can I place an order for CY2304NZZXC-1T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY2304NZZXC-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 CY2304NZZXC-1T reliable?
The price and inventory of CY2304NZZXC-1T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY2304NZZXC-1T is usually 5 days.
3.What payment methods are accepted for CY2304NZZXC-1T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY2304NZZXC-1T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY2304NZZXC-1T?
CY2304NZZXC-1T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY2304NZZXC-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 CY2304NZZXC-1T?
For technical support, including CY2304NZZXC-1T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY2304NZZXC-1T requirements.
6.How does Aetrix verify that CY2304NZZXC-1T is sourced from the original manufacturer or authorized distributors?
All CY2304NZZXC-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 CY2304NZZXC-1T meets industry standards.
7.What is the process for return or replacement of CY2304NZZXC-1T?
All CY2304NZZXC-1T units undergo pre-shipment inspection (PSI). If there is an issue with CY2304NZZXC-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 CY2304NZZXC-1T part is unused and in its original packaging.
Return procedure for CY2304NZZXC-1T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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