Overview
Features and Benefits
- Integrated Features Saves Board Space and Simplifies Design
- Charge Pump Circuitry Eliminates the Need for a Bipolar ±12V Supply
- Wide Single-Supply Operation From +3V to +5.5V Supply
- Always-On Extra Outputs Enable Monitoring of External Devices
- Power Saving Extends Battery Life
- 1µA Supply Current in Shutdown Mode While Receiver is Active (MAX3222, MAX3237, MAX3241)
Product Details
The MAX3222/MAX3232/MAX3237/MAX3241 transceivers have a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a 3.0V to 5.5V supply with a dual charge pump. The devices require only four small 0.1µF external charge-pump capacitors. The MAX3222, MAX3232, and MAX3241 are guaranteed to run at data rates of 120kbps while maintaining RS-232 output levels. The MAX3237 is guaranteed to run at data rates of 250kbps in normal operating mode and 1Mbps in the MegaBaud™ operating mode.
The MAX3222/MAX3232 have 2 receivers and 2 drivers. The MAX3222 and MAX3232 are pin, package, and functionally compatible with the industry-standard MAX242 and MAX232, respectively.
The MAX3241 has 5 receivers and 3 drivers, while the MAX3237 has 3 receivers and 5 drivers. Receivers R1 (MAX3237/MAX3241) and R2 (MAX3241) have extra outputs in addition to their standard outputs. These extra outputs are always active, allowing external devices to be monitored without forward biasing the protection diodes in circuitry that may have VCC completely removed.
The MAX3222, MAX3232, and MAX3241 are available in space-saving TSSOP and SSOP packages with operating temperatures of either -40°C to +85°C or 0°C to 70°C.
Applications
- Battery-Powered Equipment
- Handheld Equipment
- High-Speed Modems
- Notebook, Subnotebook, and Palmtop Computers
- Peripherals
- Printers
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.
Evaluation Kits (1)
Documentation & Resources
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MAX3232 Reliability Data1/12/2023PDF157K
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RS-232-Powered Temperature Sensor12/23/2004
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Interfacing the MAX1169 ADC to a PIC Microcontroller9/29/2003
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Determining Clock Accuracy Requirements for UART Communications8/7/2003
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New RS-232 ICs Feature 1µA Supply Current, ±15kV ESD Protection, and 3V Operation8/16/2002
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Automatic Test Equipment on a Budget11/19/2001
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Guide to Selecting and Using RS-232, RS-422, and RS-485 Serial Data Standards12/29/2000
Tools & Simulations
IBIS Models
IBS
MAX3232 IBIS Model
20.29K
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.
PCN-PDN Information
Support & Discussions
MAX3232 Discussions
Sample & Buy
Ordering FAQs
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Buy Now Pricing
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List Pricing
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Lead Times
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