Features and Benefits
- Robust Protection to Withstand Load Dumps, Miswiring, and Connector Failures
- ±70V Fault Protection
- Overvoltage Current Limiting
- Current Protection at Transmitter Outputs
- Thermal Shutdown Protection
- Flexible Power Requirements Simplify Design
- +3.0V to +5.5V Single Supply Voltage
- True RS-232 Performance (Up to 250kbps) Even from +3.0V Supply Voltage
- AutoShutdown Simplifies Power Savings
- Automatically Enters Shutdown Mode if RS-232 Cable is Disconnected or Receivers are Inactive Automatically Activates from Shutdown When Any Valid Transition is Sensed
- 1µA Typical Shutdown Current
The MAX13223E is a +3.0V to +5.5V-powered EIA/TIA-232 and V.28 communications interface with fault protection on the RS-232 line interface. This allows shorts of the transmitter outputs and receiver inputs to voltages in the ±70V range without adversely affecting the MAX13223E.
The MAX13223E achieves 1µA supply current using Maxim's AutoShutdown™ feature. The MAX13223E automatically enters a low-power shutdown mode when the RS-232 cable is disconnected or the receivers are inactive. The device turns on again when a valid transition at any receiver input is sensed. A proprietary, high-efficiency, dual charge-pump power supply and a low-dropout transmitter combine to deliver true RS-232 performance from a single +3.0V to +5.5V supply.
The MAX13223E has two receivers and two drivers and is guaranteed to run at data rates of 250kbps for one transmitter switching while maintaining RS-232 output levels.
The MAX13223E operates from input voltages ranging from +3.0V to +5.5V and is available in a 20-pin, 6.5mm x 4.4mm, TSSOP package. The MAX13223E is specified over the -40°C to +85°C temperature range.
- Base Stations
- Industrial Equipment
- POS Terminal Equipment
- Telecomm Equipment
- Telematics Equipment
- Utility Meters
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
MAX13223E Reliability Data1/12/2023
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.
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