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MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, MAX3491
3.3V Powered, 10Mbps and Slew-Rate Limited, True RS-485/RS-422 Transceivers


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Data Sheet
FULL DATA SHEET (PDF, 208kB)
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Description
The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 are 3.3V, low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The MAX3483 and MAX3488 feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The partially slew-rate-limited MAX3486 transmits up to 2.5Mbps. The MAX3485, MAX3490, and MAX3491 transmit at up to 10Mbps.

Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if both inputs are open circuit.

The MAX3488, MAX3490, and MAX3491 feature full-duplex communication, while the MAX3483, MAX3485, and MAX3486 are designed for half-duplex communication.

Key Features   Applications/Uses
  • Operate from a Single 3.3V Supply-No Charge Pump!
  • Interoperable with +5V Logic
  • 8ns Max Skew (MAX3485/MAX3490/MAX3491)
  • Slew-Rate Limited for Errorless Data Transmission (MAX3483/MAX3488)
  • 2nA Low-Current Shutdown Mode (MAX3483/MAX3485/MAX3486/MAX3491)
  • -7V to +12V Common-Mode Input Voltage Range
  • Allows up to 32 Transceivers on the Bus
  • Full-Duplex and Half-Duplex Versions Available
  • Industry Standard 75176 Pinout (MAX3483/MAX3485/MAX3486)
  • Current-Limiting and Thermal Shutdown for Driver Overload Protection

 
  • Industrial Control Local Area Networks
  • Integrated Services Digital Networks
  • Low-Power RS-485/RS-422 Transceivers
  • Packet Switching
  • Telecommunications
  • Transceivers for EMI-Sensitive Applications

    Key Specifications:   RS-422/485 Line Driver/Receivers
    Part Number Number of Tx/Rx Duplex Supply Voltage (V) Typ. ICC (mA) Data Rate (kbps) Tx EN Rx EN Typ. Shutdown ICC (µA) Number of Rx/Tx on Bus Package Price**
    MAX3483  1Tx + 1Rx Half 3.3 1 250 Yes Yes 0.002 32 PDIP/8
    SOIC/8
    $1.60 @ 1k
    MAX3485  Half 10,000 Yes Yes 0.002 PDIP/8
    SOIC/8
    $1.60 @ 1k
    MAX3486  Half 2,500 Yes Yes 0.002 PDIP/8
    SOIC/8
    $1.60 @ 1k
    MAX3488  Full 250 No No  -  PDIP/8
    SOIC/8
    $1.60 @ 1k
    MAX3490  Full 10,000 No No  -  PDIP/8
    SOIC/8
    $1.60 @ 1k
    MAX3491  Full 10,000 Yes Yes 0.002 PDIP/14
    SOIC/14
    $1.60 @ 1k
    See All RS-422/485 Line Driver/Receivers (150)
    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.

    Application Notes
  • Application Note 367: Explanation of Maxim RS-485 Features - MAX3483, MAX3485, MAX3486
  • Application Note 639: Maxim Leads the Way in ESD Protection - MAX3485, MAX3490
  • Application Note 651: ESD Protection for I/O Ports - MAX3485, MAX3490

    Evaluation Kits
    none

    Design Guides
  • INTERFACE (PDF)

    Reliability Reports
  • Show FIT data for:
  • Reliability Report: MAX3483xxA.pdf MAX3486xxA.pdf
  • Request Reliability Report for:

    Software/Models
  • MAX3485 IBIS Model
  • MAX3490 IBIS Model

    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: 1-79 of 79

    MAX3483 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3483C/D  
    DICE SALES;

    Use pkgcode/variation: DICE*
    See data sheet
    MAX3483CPA+  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8+3*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3483CPA  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8-3*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3483EPA+  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8+3*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3483EPA  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8-3*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3483CSA+  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3483CSA+T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3483CSA  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3483CSA-T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3483ESA+  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3483ESA+T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3483ESA  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3483ESA-T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3485 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3485C/D  
    DICE SALES;

    Use pkgcode/variation: DICE*
    See data sheet
    MAX3485EPA+  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8+3*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3485CPA+  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8+3*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3485CPA  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8-3*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3485EPA  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8-3*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3485CSA-T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3485CSA+T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3485CSA+  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3485CSA  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3485ESA+  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3485ESA+T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3485ESA  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3485ESA-T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3486 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3486C/D  
    DICE SALES;

    Use pkgcode/variation: DICE*
    See data sheet
    MAX3486CPA+  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8+3*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3486CPA  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8-3*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3486EPA  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8-3*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3486CSA-T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3486CSA  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3486CSA+  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3486CSA+T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3486ESA+T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3486ESA+  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3486ESA-T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3486ESA  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3488 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3488C/D  
    DICE SALES;

    Use pkgcode/variation: DICE*
    See data sheet
    MAX3488CPA+  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8+3*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3488EPA+  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8+3*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3488CPA  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8-3*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3488EPA  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8-3*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3488CSA+T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3488CSA-T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3488CSA  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3488CSA+  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3488ESA  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3488ESA-T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3488ESA+  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3488ESA+T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3490 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3490C/D  
    DICE SALES;

    Use pkgcode/variation: DICE*
    See data sheet
    MAX3490CPA+  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8+3*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3490CPA  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8-3*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3490EPA  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8-3*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3490EPA+  
    PDIP;8 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P8+3*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3490CSA+  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3490CSA  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3490CSA-T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3490CSA+T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3490ESA-T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3490ESA  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8-5*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3490ESA+T  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3490ESA+  
    SOIC;8 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S8+5*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3491 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3491C/D  
    DICE SALES;

    Use pkgcode/variation: DICE*
    See data sheet
    MAX3491CPD+  
    PDIP;14 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P14+4*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3491CPD  
    PDIP;14 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P14-4*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3491EPD+  
    PDIP;14 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P14+4*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3491EPD  
    PDIP;14 pin;
    Dwg: 21-0043 (PDF)
    Use pkgcode/variation: P14-4*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3491CSD-TG002  
    SOIC;14 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S14-4*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3491CSD-G002  
    SOIC;14 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S14-4*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3491CSD  
    SOIC;14 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S14-4*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3491CSD-T  
    SOIC;14 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S14-4*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3491CSD+T  
    SOIC;14 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S14+4*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3491CSD+  
    SOIC;14 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S14+4*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3491ESD+  
    SOIC;14 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S14+4*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3491ESD  
    SOIC;14 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S14-4*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3491ESD-T  
    SOIC;14 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S14-4*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3491ESD+T  
    SOIC;14 pin;
    Dwg: 21-0041 (PDF)
    Use pkgcode/variation: S14+4*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    Notes and Comments
  • Slew-rate limiting reduces EMI and reflections (MAX3483)
  • Guaranteed 10Mbps data rate (MAX3485)
  • Guaranteed 2.5Mbps data rate (MAX3486)
  • Slew-rate limiting reduces EMI and reflections (MAX3488)
  • Guaranteed 10Mbps data rate (MAX3490)
  • MAX3490 plus driver/receiver enable (MAX3491)

    More Information
  • RS-485 Resources

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