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Diodes Incorporated PI6C49CB04BJWEX
- Part No.:
- PI6C49CB04BJWEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Clock Buffers, Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
PI6C49CB04BJWEX.pdf
- Description:
- IC CLK BUFFER 1:4 200MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,279
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Product details
Overview
PI6C49CB04BJWEX from Diodes Incorporated is an industrial-grade, low-skew 1-to-4 LVCMOS/LVTTL fanout buffer designed for precision clock distribution. It delivers four synchronized outputs with ≤45ps max output skew, ≤0.173ps typical additive phase jitter at 3.3V, and supports up to 200MHz maximum output frequency in 3.3V mode. Used in FPGA clock trees, industrial PLCs, and test equipment requiring deterministic timing.
For engineers reviewing the PI6C49CB04BJWEX datasheet, PI6C49CB04BJWEX pinout, PI6C49CB04BJWEX application, or PI6C49CB04BJWEX equivalent, key selection criteria include guaranteed part-to-part skew, multi-voltage core/output supply support (1.5V–3.3V), and industrial temperature range (−40°C to +105°C) compliance.
Technical Context
The PI6C49CB04BJWEX uses a single-rail input architecture with internal pulldown resistors (51kΩ typical) on CLK, enabling direct connection to open-drain or unterminated sources. Its output drivers are optimized for LVCMOS/LVTTL levels across VDDO = 1.5V/1.8V/2.5V/3.3V, with matched rise/fall times (1.0–1.5ns) and propagation delay variation ≤2.5ns over voltage/temperature.
It operates with independent core (VDD) and output (VDDO) supplies, supporting mixed-voltage systems - e.g., 1.8V core with 1.5V outputs - while maintaining sub-250ps output-to-output skew under matched loading. Additive jitter remains ≤0.05ps RMS (typical) at 156.25MHz under 2.5V/3.3V conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Frequency | 200MHz at 3.3V - enables high-speed FPGA and ASIC clocking without external PLL multiplication |
| Output Skew (max) | 45ps - ensures tight timing alignment across all four outputs for synchronous logic domains |
| Additive Phase Jitter (typ) | 0.173ps RMS @ 3.3V - preserves signal integrity in jitter-sensitive serial interfaces (e.g., PCIe Gen3 reference clocks) |
| Supply Range (VDD/VDDO) | 1.425–3.6V dual-rail - allows flexible power domain partitioning in mixed-signal SoC systems |
| Operating Temp | −40°C to +105°C - certified for industrial control, motor drives, and outdoor telecom infrastructure |
| Input Pulldown Resistor | 51kΩ typical - eliminates need for external biasing when interfacing with open-drain clock sources |
| Output Impedance | 5–12Ω - provides controlled drive strength compatible with 50Ω PCB traces and standard logic loads |
Pinout & Package
Package: 8-pin SOIC (W), 150mil wide, RoHS-compliant, halogen-free "Green" construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VDDO | Power | Independent output-stage supply rail - sets LVCMOS/LVTTL output voltage level (1.5V/1.8V/2.5V/3.3V) |
| 2 VDD | Power | Core logic supply - powers internal buffer circuitry; may differ from VDDO for mixed-voltage operation |
| 3 CLK | Input | LVCMOS/LVTTL clock input with integrated 51kΩ pulldown - accepts rail-to-rail signals without external termination |
| 4 GND | Power | Dedicated ground return for both core and output stages - minimizes noise coupling between logic and output drivers |
| 5 Q0 | Output | Buffered clock output - identical timing characteristics to Q1–Q3; supports 5pF load at 200MHz |
| 6 Q1 | Output | Buffered clock output - matched propagation delay and skew relative to Q0/Q2/Q3 |
| 7 Q2 | Output | Buffered clock output - fully symmetrical with other outputs; no priority or hierarchy |
| 8 Q3 | Output | Buffered clock output - enables 1:4 fanout without external buffering or trace-length matching |
Key Features
| Feature | Design Value |
|---|---|
| Low output skew | ≤45ps max (3.3V) - ensures simultaneous edge arrival across all four outputs for synchronous sampling |
| Multi-voltage operation | VDD and VDDO independently configurable from 1.425V to 3.6V - supports heterogeneous logic families on same board |
| Integrated input pulldown | 51kΩ internal resistor on CLK - eliminates BOM cost and layout area for external biasing components |
| Industrial temperature range | −40°C to +105°C operation - validated for continuous use in factory automation and outdoor base stations |
| Low additive jitter | 0.05ps RMS (typ) @ 156.25MHz - meets jitter budget for 10GbE PHY reference clocks and SERDES applications |
Applications
| FPGA Clock Distribution | Industrial PLC Timing |
|---|---|
|
Use Scenario: Distributing a single master clock to multiple FPGA banks (I/O, logic, transceivers) on a high-density control board. IC Role / Device Role / Timing Role: Fanout buffer providing four electrically isolated, low-skew copies of the system clock. Use Value: Eliminates inter-bank setup/hold violations by guaranteeing ≤45ps skew between outputs, enabling deterministic timing closure. |
Use Scenario: Synchronizing real-time I/O modules, motion controllers, and HMI displays in modular PLC backplanes. IC Role / Device Role / Timing Role: Central clock repeater ensuring deterministic cycle alignment across distributed control nodes. Use Value: Maintains <±250ps output-to-output skew over −40°C to +105°C, preserving deterministic scan-cycle execution. |
| Test Equipment Clock Tree | Industrial Ethernet Switch |
|
Use Scenario: Generating parallel clock domains for ADC/DAC channels, pattern generators, and digital analyzers in benchtop instruments. IC Role / Device Role / Timing Role: Low-jitter clock splitter feeding multiple data converters and logic analyzers simultaneously. Use Value: 0.173ps typical additive jitter preserves ENOB in 16-bit+ ADC systems and reduces bit error rates in high-speed digital capture. |
Use Scenario: Providing synchronized 125MHz clocks to PHYs, MACs, and packet processors in ruggedized Gigabit Ethernet switches. IC Role / Device Role / Timing Role: Timing hub delivering phase-aligned clocks to multiple Ethernet subsystems with shared reference. Use Value: Dual-supply flexibility (e.g., 2.5V core / 1.8V outputs) matches mixed-voltage PHY/MAC interface requirements without level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar clock fanout buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ICS85301AMLF | Higher max frequency (350MHz), but fixed 3.3V-only supply and no VDD/VDDO separation | Requires external level-shifting for mixed-voltage designs; less suitable for 1.5V/1.8V output domains | Select when >200MHz operation is required and all loads operate at 3.3V |
| PI6C20400LEX | Lower skew (25ps typ), but only 1.8V/2.5V/3.3V VDDO support - no 1.5V output mode | Cannot drive 1.5V logic directly; lacks internal CLK pulldown, requiring external biasing | Select when ultra-low skew is critical and 1.5V outputs are not needed |
Compared with ICS85301AMLF and PI6C20400LEX, the PI6C49CB04BJWEX uniquely combines 1.5V output capability, integrated CLK pulldown, and industrial temperature rating - making it optimal for cost-sensitive, mixed-voltage industrial clock trees where layout simplicity and thermal robustness are prioritized over extreme frequency or sub-25ps skew.
Availability
PI6C49CB04BJWEX is available at Aetrix Electronics and suitable for FPGA clock distribution, industrial PLC timing, and test equipment clock tree applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for PI6C49CB04BJWEX 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and integrated circuits, specializing in high-performance analog, logic, and timing solutions for industrial, computing, and communications markets.
The PI6C49CB04BJWEX belongs to Diodes' Pericom® clock buffer product line, engineered specifically for low-skew, multi-voltage clock distribution in harsh-environment industrial systems - emphasizing reliability, thermal stability, and design-in simplicity.
FAQ
What supply configurations does the PI6C49CB04BJWEX support?
The device supports independent core (VDD) and output (VDDO) supplies ranging from 1.425V to 3.6V each. Valid combinations include 1.8V core with 1.5V outputs for driving low-voltage logic, or 3.3V core with 2.5V outputs for mixed-signal interfaces. All configurations are specified across −40°C to +105°C.
Does the PI6C49CB04BJWEX require external pull-up or pull-down resistors on CLK?
No. The CLK input includes an internal 51kΩ pulldown resistor, allowing direct connection to open-drain clock sources or unconnected inputs without external biasing. This reduces BOM count and improves layout efficiency in space-constrained industrial PCBs.
How is output skew guaranteed across temperature and voltage?
Output skew is characterized and guaranteed ≤45ps maximum at 3.3V and ≤250ps maximum across all operating voltages and temperatures. This is achieved through matched internal driver design and process compensation, verified per DS42945 Rev 2-2 test conditions.
Can the PI6C49CB04BJWEX drive 50Ω transmission lines directly?
Yes. With nominal output impedance of 5–12Ω and rise/fall times of 1.0–1.5ns, the device can drive 50Ω PCB traces terminated at the load. For best signal integrity at 200MHz, maintain trace length ≤2 inches and avoid stubs - no series termination required due to low intrinsic output impedance.
PI6C49CB04BJWEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Fanout Buffer (Distribution)
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 1:4
- Differential - Input:Output:
- No/No
- Input:
- LVCMOS, LVTTL
- Output:
- LVCMOS, LVTTL
- Frequency - Max:
- 200 MHz
- Voltage - Supply:
- 1.425V ~ 3.6V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
PI6C49CB04BJWEX FAQ
1.How can I place an order for PI6C49CB04BJWEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI6C49CB04BJWEX 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 PI6C49CB04BJWEX reliable?
The price and inventory of PI6C49CB04BJWEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI6C49CB04BJWEX is usually 5 days.
3.What payment methods are accepted for PI6C49CB04BJWEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI6C49CB04BJWEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI6C49CB04BJWEX?
PI6C49CB04BJWEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI6C49CB04BJWEX 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 PI6C49CB04BJWEX?
For technical support, including PI6C49CB04BJWEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI6C49CB04BJWEX requirements.
6.How does Aetrix verify that PI6C49CB04BJWEX is sourced from the original manufacturer or authorized distributors?
All PI6C49CB04BJWEX 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 PI6C49CB04BJWEX meets industry standards.
7.What is the process for return or replacement of PI6C49CB04BJWEX?
All PI6C49CB04BJWEX units undergo pre-shipment inspection (PSI). If there is an issue with PI6C49CB04BJWEX, 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 PI6C49CB04BJWEX part is unused and in its original packaging.
Return procedure for PI6C49CB04BJWEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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