Diodes Incorporated
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3.3V, 133MHz, 1:7 Output Low Skew Clock Driver with 20-Ohm Output Termination Resistor

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Product Description

PI49FCT3280x is a 3.3V very low-skew clock buffer from a single low-capacitance input that produces five outputs on PI49FCT32802 and seven outputs on PI49FCT32803. Excellent output signals to power and ground ratio minimize power and ground noise, and also improves output performance.
The PI49FCT3280x integrates series damping resistors on all outputs.


  • Low skew: < 200ps 
  • Fast switching frequency >133 MHz 
  • Fast output rise/fall time < 1.5ns 
  • Low propagation delay < 2.5ns 
  • Low input capacitance < 6.0pF 
  • 5V Tolerant input
  • Rail-to-Rail CMOS outputs 
  • Industrial Temperature: –40°C to +85°C 
  • 3.3V ±10% operation 
  • Packages (Pb-free & Green available):
    • – 16-pin 150-mil wide QSOP (Q) 
    • – 16-pin 173-mil wide TSSOP (L)

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Standard
Function Buffer
Number of Outputs 7
Output Type(s) CMOS
Maximum Output Frequency (MHz) 133
Additive Jitter (ps) N/A
Supply Voltage (V) 3.3
Input Type(s) CMOS
Skew (ps) 200
Ambient or Junction Temperature (°C) -40 to 85 °C

Technical Documents

Recommended Soldering Techniques


Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2488 2020-10-20 2021-01-20 Fab Porting from Global Foundries to MagnaChip, Assembly Site Transfer, and BOM Change
PCN-2326 - Rev 3 (Interim Update) 2018-04-20 2020-12-30 Fab Porting from Global Foundries to MagnaChip