MAX212:+3V-Powered, Low-Power, True RS-232 Transceiver

The MAX212 RS-232 transceiver is intended for 3V-powered EIA/TIA-232E and V.28/V.24 communication interfaces where three drivers and five receivers are needed with minimum power consumption. The operating voltage range extends from 3.6V down to 3.0V while still maintaining true RS-232 and EIA/TIA-562 voltage levels. A 1µA typical shutdown mode reduces power consumption, extending battery life in portable systems. While shut down, all receivers can remain active or can be disabled under logic control. This enables a system incorporating the CMOS MAX212 to be in low-power shutdown mode and monitor incoming RS-232 activity. A guaranteed data rate of 120kbps provides compatibility with popular software for communicating with personal computers. Three-state drivers on all receiver outputs are provided so that multiple receivers, generally of different interface standards, can be wire-ORed at the UART. The MAX212 is available in both small-outline (SO) and shrink-small-outline (SSOP) packages. The SSOP package occupies less than half of the board area required by the equivalent SO package.

Key Features
  • Operates from Single +3.0V to +3.6V Supply
  • 24-Pin SSOP or Wide SO Packages
  • Meets All EIA/TIA-232E and EIA/TIA-562 Specifications
  • 3mA Max Supply Current (Unloaded)
  • 1µA Low-Power Shutdown Mode
  • All Receivers Active During Low-Power Shutdown
  • Mouse Compatible at 3.0V
  • Low-Cost, Surface-Mount External Components
  • 120kbps Guaranteed Data Rate-LapLink™ Compatible
  • Three-State Receiver Outputs
  • Evaluation Kit Available
  • Flow-Through Pinout
MAX212: Typical Operating Circuit
MAX212: Typical Operating Circuit
Applications/Uses
  • Computers: Notebooks/Palmtops/Subnotebooks
  • Instruments
  • Peripherals
  • Printers
DataSheet
titleDownload file
MAX212 Data SheetMAX212.pdf
Parametrics
Part NumberVSUPPLY
(V)
TxRxData Rate
(kbps)
ICC
(mA)
Internal Charge PumpExt. CapsCap. Value
(µF)
Rx Active in ShutdnPackage/PinsBudgetary
Price
mintypnomSee Notes
MAX2123.3351201.5Yes20.33/0.685SOIC(W)/24
SSOP/24
$4.89 @1k
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX212C/DNo Longer AvailableDICE SALES,;NA pin;DICE;0°C to +70°CSee data sheet
MAX212CAGNo Longer AvailableMAX212CAG+SSOP,;24 pin;65.8 mm²0°C to +70°CNo
MAX212CAG+ActiveSSOP,;24 pin;65.8 mm²0°C to +70°CLead Free
MAX212CAG+TActiveSSOP,;24 pin;65.8 mm²0°C to +70°CLead Free
MAX212CAG-TNo Longer AvailableMAX212CAG+TSSOP,;24 pin;65.8 mm²0°C to +70°CNo
MAX212CWGNo Longer AvailableSOIC(W),;24 pin;166.1 mm²0°C to +70°CNo
MAX212CWG-TNo Longer AvailableW.SO;24 pin0°C to +70°CSee data sheet
MAX212EAGNo Longer AvailableMAX212EAG+SSOP,;24 pin;65.8 mm²-40°C to +85°CNo
MAX212EAG+ActiveSSOP,;24 pin;65.8 mm²-40°C to +85°CLead Free
MAX212EAG+TActiveSSOP,;24 pin;65.8 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX212EAG-TNo Longer AvailableMAX212EAG+TSSOP;24 pin-40°C to +85°CSee data sheet
MAX212EVKIT-SOActiveEVKIT;0°C to +70°CSee data sheet
MAX212EWGNo Longer AvailableSOIC(W),;24 pin;166.1 mm²-40°C to +85°CNo
MAX212EWG-TNo Longer AvailableW.SO;24 pin-40°C to +85°CSee data sheet
MAX212.pdf MAX212
Determining Clock Accuracy Requirements for UART Communications MAX3206E
MAX212.pdf MAX212