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MAX4888, MAX4889
2.5Gbps PCI Express Passive Switches

High-Speed PCI Express Passive Switches Enable Gen I Switching


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Data Sheet
FULL DATA SHEET (PDF, 276kB)
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Description
The MAX4888/MAX4889 high-speed passive switches route PCI Express® (PCIe) data between two possible destinations. The MAX4888 is a quad single-pole/double-throw (4 x SPDT) switch ideally suited for switching two half lanes of PCIe data between two destinations. The MAX4889 is an octal single-pole/double-throw (8 x SPDT) switch ideal for switching four half lanes of PCIe data between four destinations. The MAX4888/MAX4889 feature a single digital control input (SEL) to switch signal paths.

The MAX4888/MAX4889 are fully specified to operate from a single 3.0V to 3.6V power supply and also operate down to +1.65V. The MAX4888 is available in a 3.5mm x 5.5mm, 28-pin TQFN package. The MAX4889 is available in a 3.5mm x 9.0mm, 42-pin TQFN package. Both devices operate over the -40°C to +85°C temperature range.

Key Features   Applications/Uses
  • Single 1.65V to 3.6V Power-Supply Voltage
  • Low Same-Pair Skew of 7ps
  • Low 120µA (Max) Quiescent Current
  • Supports PCIe Gen I Data Rates
  • Flow-Through Pin Configuration for Ease of Layout
  • Industry-Compatible Pinout
  • Lead-Free Packaging

 
  • Desktop Computers
  • Laptops
  • Servers/Storage Area Networks

    Key Specifications:   Switches and Multiplexers (Low Voltage)
    Part Number Configuration Number of Channels Normally (Open/Closed) VSUPPLY, Single (min) (V) VSUPPLY, Single (max) (V) RON (max) (Ω) Bandwidth (MHz) tON (max) (nS) tOFF (max) (nS) CON (pF) COFF (pF) Price**
    MAX4888  SPDT 4 Open/Closed 1.6 3.6 7 1,250 250 50 2 1 $1.40 @ 1k
    MAX4889  8 $1.75 @ 1k
    See All Switches and Multiplexers (Low Voltage) (124)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Evaluation Kits
  • MAX4889AEVKIT

    Design Guides
  • MUX & SWITCH (PDF)

    Reliability Reports
  • Show FIT data for:
  • Reliability Report: MAX4888.pdf
  • Request Reliability Report for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-8 of 8

    MAX4888 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4888ETI  



    -40°C to +85°C See data sheet
    MAX4888ETI-T  



    -40°C to +85°C See data sheet
    MAX4888ETI+  
    THIN QFN;28 pin;
    Dwg: 21-0184 (PDF)
    Use pkgcode/variation: T283555+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4888ETI+T  
    THIN QFN;28 pin;
    Dwg: 21-0184 (PDF)
    Use pkgcode/variation: T283555+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4889 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4889ETO  



    -40°C to +85°C See data sheet
    MAX4889ETO-T  



    -40°C to +85°C See data sheet
    MAX4889ETO+  
    THIN QFN;42 pin;
    Dwg: 21-0181 (PDF)
    Use pkgcode/variation: T423590M+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4889ETO+T  
    THIN QFN;42 pin;
    Dwg: 21-0181 (PDF)
    Use pkgcode/variation: T423590M+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
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    Document Ref.: 19-0724; Rev 0; 2007-09-28
    This page last modified: 2008-07-22



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