The MAX3221ECAE is a high-performance, single-transmitter, single-receiver RS-232 interface device from Maxim Integrated, designed to meet the stringent requirements of battery-powered applications. It operates from a single +3.0V to +5.5V power supply, making it ideal for portable devices where power efficiency is critical.
Key Features
- Low Power Consumption: The device features a low-power shutdown mode which reduces power consumption to 1µA (typ), extending the battery life of portable devices.
- Integrated Charge Pump: With an onboard charge pump circuit, the MAX3221ECAE generates the necessary RS-232 voltage levels (+/-10V) from a single power supply, eliminating the need for multiple power sources.
- High Data Rate: Capable of supporting data rates up to 250kbps, the device is suitable for high-speed serial communication.
- Electrostatic Discharge (ESD) Protection: The MAX3221ECAE offers a robust ESD protection for the RS-232 I/O pins, ±15kV Human Body Model (HBM), ensuring reliability and durability in harsh environments.
- Small Footprint: Housed in a 16-pin SSOP (Shrink Small Outline Package), the device requires minimal board space, which is crucial for space-constrained applications.
Applications
The MAX3221ECAE is versatile and can be used in a variety of applications, including:
- Portable Computing Devices
- Battery-Powered Equipment
- Notebooks, Laptops, and PDAs
- Data Cable Applications
Technical Specifications
Parameter
Value
Supply Voltage Range
+3.0V to +5.5V
Data Rate
250kbps
Number of Receivers
1
Number of Transmitters
1
ESD Protection
±15kV HBM
Package Type
16-pin SSOP
Overall, the MAX3221ECAE from Maxim Integrated is a reliable and efficient solution for RS-232 communication in portable applications where space and power consumption are at a premium.
