Overview
Features and Benefits
- 1µA Supply Current Using AutoShutdown
- Operates from Single +2.7V to +3.6V Supply
- 28-Pin SSOP or Wide SO Packages
- Meets All EIA/TIA-232E & EIA/TIA-562 Specifications
- Mouse Driveability-Guaranteed
- Low-Cost, Surface-Mount External Components
- 235kbps Guaranteed Data Rate-LapLink® Compatible
- +5V Logic Compatible
- Complementary Receiver Output Always Active
- Flow-Through Pinout
Product Details
The MAX3212 uses Maxim's new proprietary AutoShutdown mode to reduce supply current to 1µA. The MAX3212, with 3 RS-232 drivers and 5 RS-232 receivers, is intended for 2.7V to 3.6V-powered EIA/TIA-232E and V.28/V.24 serial interface. True RS-232 levels are maintained across the operating range. A guaranteed data rate of 235kbps provides compatibility with popular software for communicating with personal computers.
Supply current is reduced to 1µA with Maxim's new AutoShutdown feature. When the MAX3212 does not sense a valid signal level on the receiver inputs, the on-board power supply and drivers shut down. This occurs if the RS-232 cable is disconnected or if the transmitters of the connected peripheral are turned off. The system turns on again when a valid level is applied to any RS-232 receiver input. As a result, the system saves power without changes to the existing software.
A second power-management feature is incorporated to permit automatic shutdown when the RS-232 connection is valid but inactive. In this case, a transition detector facilitates shutdown when the receivers are presented with stationary RS-232 levels for long periods.
Three-state drivers are provided on receiver outputs so that multiple receivers, generally of different interface standards, can be wire-ORed at the UART. The MAX3212 is available in 28-pin SO and SSOP packages.
Applications
- Battery-Powered Applications
- Instruments
- Notebook and Palmtop Computers
- Peripherals
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
-
The Evolution of the RS-232 Transceivers6/18/2010
-
Determining Clock Accuracy Requirements for UART Communications8/7/2003
-
New RS-232 ICs Feature 1µA Supply Current, ±15kV ESD Protection, and 3V Operation8/16/2002
-
Selecting and using RS-232 Interface Parts for Your Power Supply Voltages1/1/2001
-
RS-232 Features Explained1/1/2001
-
Serial-Data Interface Chip Supplies Bipolar Voltages7/9/1998
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Support & Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
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.