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

Product Details

Key Features

Parametric specs for RS-232 Line Driver/Receivers
# Rx 5
# Tx 3
VSUPPLY (V) 3.3
Data Rate (kbps) (min) 120
ICC (mA) (typ) 1.5
Internal Charge Pump Yes
External Caps 2
Cap. Value (µF) (nom) 0.33/0.68
Package/Pins SSOP/24
Budgetary
Price (See Notes)
5.83
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Simplified Block Diagram

Technical Docs

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Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Parameters

Parametric specs for RS-232 Line Driver/Receivers
# Rx 5
# Tx 3
VSUPPLY (V) 3.3
Data Rate (kbps) (min) 120
ICC (mA) (typ) 1.5
Internal Charge Pump Yes
External Caps 2
Cap. Value (µF) (nom) 0.33/0.68
Package/Pins SSOP/24
Budgetary
Price (See Notes)
5.83

Key Features

SUPERIOR TO BIPOLAR:
  • 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

Applications/Uses

  • Computers: Notebooks/Palmtops/Subnotebooks
  • Instruments
  • Peripherals
  • Printers

Description

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.

Simplified Block Diagram

MAX212: Typical Operating Circuit MAX212: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.