MAX3224

1µA Supply Current, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus


Please check latest availability status for a specific part variant.

Description

The MAX3224–MAX3227/MAX3244/MAX3245 are 3V-powered EIA/TIA-232 and V.28/V.24 communications interfaces with automatic shutdown/wakeup features and high data-rate capabilities.

All devices achieve a 1µA supply current using Maxim's revolutionary AutoShutdown Plus™ feature. These devices automatically enter a low-power shutdown mode when the RS-232 cable is disconnected or the transmitters of the connected peripherals are inactive, and the UART driving the transmitter inputs is inactive for more than 30 seconds. They turn on again when they sense a valid transition at any transmitter or receiver input. AutoShutdown Plus saves power without changes to the existing BIOS or operating system.

The MAX3225/MAX3227/MAX3245 also feature MegaBaud™ operation, guaranteeing 1Mbps for highspeed applications such as communicating with ISDN modems. The MAX3224/MAX3226/MAX3244 guarantee 250kbps operation. The transceivers have a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a +3.0V to +5.5V supply with a dual charge pump. The charge pump requires only four small 0.1µF capacitors for operation from a 3.3V supply. The MAX3224-MAX3227 feature a logic-level output (READY) that asserts when the charge pump is regulating and the device is ready to begin transmitting.

All devices are available in a space-saving TSSOP and SSOP packages.
MAX3224, MAX3225, MAX3226, MAX3227, MAX3244, MAX3245: Typical Operating Circuits MAX3224, MAX3225, MAX3226, MAX3227, MAX3244, MAX3245: Typical Operating Circuits Enlarge+

Key Features

  • For Smaller Packaging:
    • MAX3228/MAX3229: +2.5V to +5.5V RS-232 Transceivers in UCSP™
  • For Low-Voltage or Data Cable Applications:
    • MAX3380E/MAX3381E: +2.35V to +5.5V, 1µA, 2 Tx/2 Rx RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pins
  • For Integrated ESD Protection:
    • MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E: ±15kV ESD-Protected, Down to 10nA, +3.0V to +5.5V, Up to 1Mbps, True RS-232 Transceivers (MAX3246E Available in UCSP)

Applications/Uses

  • Battery-Powered Equipment
  • Cell Phones
  • Handheld Equipment
  • Notebook, Subnotebook, and Palmtop Computers
  • Peripherals
  • Printers

See parametric specs for RS-232 Line Driver/Receivers (136)


Part NumberVSUPPLY
(V)
TxRxData Rate
(kbps)
ICC
(mA)
Internal Charge PumpExt. CapsCap. Value
(µF)
Rx Active in ShutdnPackage/PinsBudgetary
Price
mintypnomSee Notes
MAX3224 
3.3
5
222500.3Yes40.12
PDIP/20
SSOP/20
TQFN/20
TSSOP/20
$2.69 @1k
MAX3225 2210002
PDIP/20
SSOP/20
TQFN/20
TSSOP/20
$2.69 @1k
MAX3226 112502
SSOP/16
$1.85 @1k
MAX3227 1110002
SSOP/16
$1.75 @1k
MAX3244 352505
SOIC (W)/28
SSOP/28
$1.92 @1k
MAX3245 3510005
SOIC (W)/28
SSOP/28
$1.92 @1k

Pricing 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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Tools & Models

  • MAX3245 IBIS Model
  • Product Reliability Reports: MAX3224.pdf 
    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

    Related Resources


    MAX22088
    Homebus Transceiver

    • High Integration Reduces BOM and Footprint
    • Configurability Enables Flexible Design
    • Integrated Protection for Robust Communication

    MAX14829
    Low Power IO-Link Device Transceiver with Dual Drivers

    • Low Power Dissipation Reduces the Thermal Footprint for Small Sensors
    • High Configurability and Integration Reduce SKUs
    • Selectable Driver Integrated Protection Enables Robust Communication

    MAX33014E
    +5V, 5Mbps CAN Transceiver with ±65V Fault Protection, Fault Detection and Reporting, ±25V CMR, and ±40kV ESD Protection

    • Integrated Protection Increases Robustness
    • Family Provides Flexible Design Options
    • Fault Detection and Reporting

    MAX33015E
    +5V, 5Mbps CAN Transceiver with ±65V Fault Protection, Fault Detection and Reporting, ±25V CMR, and ±40kV ESD Protection

    • Integrated Protection Increases Robustness
    • Family Provides Flexible Design Options
    • Fault Detection and Reporting

    MAX33012E
    +5V, 5Mbps CAN Transceiver with ±65V Fault Protection, Fault Detection and Reporting, ±25V CMR, and ±40kV ESD Protection

    • Integrated Protection Increases Robustness
    • Family Provides Flexible Design Options
    • Fault Detection and Reporting

    MAX33011E
    +5V, 5Mbps CAN Transceiver with ±65V Fault Protection, Fault Detection and Reporting, ±25V CMR, and ±40kV ESD Protection

    • Integrated Protection Increases Robustness
    • Family Provides Flexible Design Options
    • Fault Detection and Reporting

    MAX22026
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22027
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22028
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22027F
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22026F
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22025F
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22028F
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22025, MAX22025F
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22520
    One-Time Programmable (OTP) Industrial Sensor Output Driver

    • High Configurability Supports a Wide Range of Sensor Designs
    • Robust Design for Harsh Industrial Environments
    • Small Form Factor for Compact Designs