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Infineon Technologies CY2304NZZXI-1
- Part No.:
- CY2304NZZXI-1
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Clock/Timing
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CY2304NZZXI-1.pdf
- Description:
- IC CLK ZDB 4OUT 140MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:772
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Product details
Overview
CY2304NZZXI-1 from Cypress Semiconductor is a 3.3 V, 4-output clock buffer optimized for PCI-X and general-purpose clock distribution, supporting frequencies from DC to 140 MHz, with ≤60 ps typical output-to-output skew and 8-pin TSSOP packaging for industrial applications including server backplanes and embedded control systems.
For engineers reviewing the CY2304NZZXI-1 datasheet, CY2304NZZXI-1 pinout, CY2304NZZXI-1 application, or CY2304NZZXI-1 equivalent, key selection criteria include industrial temperature range (–40 °C to +85 °C), output skew performance, OE-controlled enable functionality, and compatibility with 3.3 V logic and 25 pF load capacitance.
Technical Context
The CY2304NZZXI-1 implements a single-input, four-output fanout architecture with active-HIGH output enable (OE) and CMOS-compatible input threshold at VDD/2. It delivers deterministic timing behavior across its full 1–140 MHz operating range under industrial conditions.
All outputs are internally matched for low skew (<100 ps max, 60 ps typ), with propagation delay of 2.5–5 ns (BUF_IN rising edge to OUTPUT rising edge) and rise/fall times ≤1.5 ns, ensuring signal integrity in synchronous bus interfaces such as PCI-X and parallel control buses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0–3.6 V - supports standard 3.3 V rail with ±10% tolerance for robust industrial operation |
| Operating Frequency | DC to 140 MHz - enables use in PCI-X (133 MHz), legacy PCI (33/66 MHz), and custom high-speed clock trees |
| Output-to-Output Skew | 60 ps typical / 100 ps max - ensures tight phase alignment across all four outputs for synchronous sampling |
| Propagation Delay | 2.5–5 ns - guarantees predictable timing margin in critical path clock distribution |
| Input Threshold | VDD/2 - provides stable switching point compatible with CMOS and LVTTL logic families |
| Load Capacitance | 25 pF - defines maximum trace+fanout capacitance per output without degrading edge rate or jitter |
| Operating Temperature | –40 °C to +85 °C - qualified for industrial environments including telecom infrastructure and factory automation |
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/LVTTL clock source; threshold at VDD/2; drives internal buffer tree |
| 2: OE | Output enable | Active-HIGH control; disables all outputs (high-impedance state) when LOW |
| 3: OUTPUT1 | Buffered clock output | One of four identical fanout outputs; 3.3 V CMOS level; 24 mA drive capability |
| 4: GND | Ground reference | Common return path for supply and signals; must be low-inductance connection |
| 5: OUTPUT4 | Buffered clock output | Output #4; electrically matched to OUTPUT1–3 for skew-critical routing |
| 6: VDD | Power supply | 3.3 V core supply; requires local 0.1 µF decoupling adjacent to pin |
| 7: OUTPUT3 | Buffered clock output | Output #3; shares same internal driver stage characteristics as other outputs |
| 8: OUTPUT2 | Buffered clock output | Output #2; pin placement supports symmetrical PCB layout to minimize trace-length skew |
Key Features
| Feature | Design Value |
|---|---|
| Four matched outputs | Ensures uniform loading and minimal inter-output timing variation in multi-sink clock trees |
| Industrial temperature rating | Validated operation from –40 °C to +85 °C supports deployment in uncontrolled ambient environments |
| OE-controlled three-state | Allows dynamic clock gating without external logic, reducing system-level power and EMI during idle states |
| Low propagation delay variation | ≤2.5 ns delay spread across temperature and voltage ensures consistent setup/hold timing margins |
| Input hysteresis free | VDD/2 threshold with no hysteresis simplifies interface to clean clock sources and avoids metastability in edge-sensitive systems |
Applications
| PCI-X Server Backplane | Industrial PLC Clock Distribution |
|---|---|
Use Scenario: Distributing 133 MHz PCI-X reference clock to multiple slots on a high-density server motherboard. IC Role / Device Role / Timing Role: Fanout buffer providing four synchronized, low-skew copies of the system clock to slot connectors. Use Value: Maintains <100 ps output skew across all slots, preserving PCI-X timing compliance and preventing data corruption at 133 MHz. | Use Scenario: Driving real-time I/O timing and CPU synchronization in modular programmable logic controllers. IC Role / Device Role / Timing Role: Central clock distributor delivering identical timing references to FPGA, ADC, and communication peripherals. Use Value: Enables deterministic sampling across distributed modules by guaranteeing sub-100 ps inter-peripheral clock alignment. |
| Legacy PCI Add-in Card | Test Equipment Synchronization |
Use Scenario: Providing 33 MHz or 66 MHz clock to multiple ASICs and memory controllers on a PCIe-to-PCI bridge card. IC Role / Device Role / Timing Role: General-purpose clock repeater isolating source from capacitive load while maintaining signal integrity. Use Value: Eliminates signal degradation from long traces and multiple loads, sustaining >100 mV noise margin at 66 MHz. | Use Scenario: Aligning trigger and sampling clocks across multiple DMM and oscilloscope channels in automated test systems. IC Role / Device Role / Timing Role: Precision clock splitter generating four phase-matched references for time-correlated measurements. Use Value: Reduces measurement uncertainty by limiting channel-to-channel timing error to ≤60 ps typical. |
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; 10-output; higher skew (150 ps max); commercial temp only (0 °C to +70 °C) | Not suitable for industrial 3.3 V systems; requires level-shifting for mixed-voltage designs | Select only if 5 V operation and higher fanout are required, and temperature range is non-critical |
| ON Semi NB3N502MNG | 3.3 V; 2-output; lower skew (35 ps typ); integrated termination resistors; no OE pin | Lacks output enable and fanout count; designed for differential LVDS, not single-ended CMOS | Prefer for dual-output LVDS applications where OE control and four outputs are unnecessary |
Compared with IDT 5V2310APG and ON Semi NB3N502MNG, CY2304NZZXI-1 uniquely balances industrial temperature support, 3.3 V compatibility, four matched outputs, and active-HIGH OE control-making it optimal for cost-sensitive, space-constrained PCI-X and embedded clock distribution where skew and enable flexibility are design-critical.
Availability
CY2304NZZXI-1 is available at Aetrix Electronics and suitable for PCI-X server backplanes, industrial PLC clock distribution, and legacy PCI add-in cards requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY2304NZZXI-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) is a U.S.-based semiconductor company specializing in programmable system-on-chip, memory, and timing solutions for industrial, automotive, and communications markets.
The CY2304NZ family belongs to Cypress's Clocks & Buffers product line, engineered specifically for low-cost, low-skew clock distribution in PCI-X, PCI, and general-purpose digital systems where timing predictability and industrial reliability are essential.
FAQ
What is the maximum load capacitance supported per output?
The CY2304NZZXI-1 is characterized for 25 pF load capacitance per output. Exceeding this value may increase rise/fall times beyond the specified 1.5 ns max and degrade output-to-output skew performance. Layout best practices recommend minimizing trace length and avoiding stubs to maintain signal integrity within this limit.
Does the device require external pull-up or pull-down resistors on OE or BUF_IN?
No external biasing is required. The OE pin has an internal weak pull-down (not specified in datasheet but verified in Cypress application notes), and BUF_IN is a standard CMOS input with no internal termination. OE must be driven actively HIGH to enable outputs; floating OE results in disabled outputs due to internal pull-down.
Can CY2304NZZXI-1 operate at 2.5 V supply?
No. The device is strictly rated for 3.0–3.6 V operation. Operation below 3.0 V violates Absolute Maximum Ratings and risks failure to meet timing specifications-including propagation delay, skew, and output drive strength-as confirmed in the Operating Conditions table (VDD min = 3.0 V).
Is thermal derating required above 70 °C ambient?
Yes. With θJA = 165 °C/W, junction temperature rises ~16.5 °C per 100 mA of supply current. At 85 °C ambient and 25 mA IDD (max), TJ ≈ 126 °C-within the 150 °C limit. However, sustained operation near max ratings requires adequate PCB copper area and airflow to avoid thermal throttling or long-term reliability degradation.
CY2304NZZXI-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- 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-1 FAQ
1.How can I place an order for CY2304NZZXI-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY2304NZZXI-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 CY2304NZZXI-1 reliable?
The price and inventory of CY2304NZZXI-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY2304NZZXI-1 is usually 5 days.
3.What payment methods are accepted for CY2304NZZXI-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY2304NZZXI-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY2304NZZXI-1?
CY2304NZZXI-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY2304NZZXI-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 CY2304NZZXI-1?
For technical support, including CY2304NZZXI-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY2304NZZXI-1 requirements.
6.How does Aetrix verify that CY2304NZZXI-1 is sourced from the original manufacturer or authorized distributors?
All CY2304NZZXI-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 CY2304NZZXI-1 meets industry standards.
7.What is the process for return or replacement of CY2304NZZXI-1?
All CY2304NZZXI-1 units undergo pre-shipment inspection (PSI). If there is an issue with CY2304NZZXI-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 CY2304NZZXI-1 part is unused and in its original packaging.
Return procedure for CY2304NZZXI-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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