MAX3243EIRHBR
High-speed communication for industrial applicationsMAX3243EIRHBR
High-speed communication for industrial applications
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Manufacturer Part # : MAX3243EIRHBR
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Package/Case: VQFN (RHB)-32
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Brand: Texas Instruments
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Product Categories : Drivers, Receivers, Transceivers
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Series : MAX3243
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
Confirm the return or exchange with our staff.
Maintain the goods in their original condition as received.
Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]
About packaging
Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.

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MAX3243EIRHBR DataSheet
Pricing (USD)
Quantity | Unit Price | Ext. Price |
---|---|---|
1 | $0.722 | $0.72 |
10 | $0.588 | $5.88 |
30 | $0.521 | $15.63 |
100 | $0.455 | $45.50 |
500 | $0.415 | $207.50 |
1000 | $0.395 | $395.00 |
These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.
Interested Parts
MAX3243EIRHBR Details
The MAX3243EIRHBR is a high-speed, low-power RS-232 transceiver from Maxim Integrated, designed for reliable serial communication in a variety of applications. This transceiver offers data rates up to 250kbps and operates on a single 3.3V power supply. It features a low power shutdown mode and is available in a compact 32-TQFN package, making it suitable for space-constrained designs.
Pinout
- 1 (VCC): Positive Power Supply
- 2 (IN1): Input 1
- 3 (OUT1): Output 1
- 4 (GND): Ground
- 5 (OUT2): Output 2
- 6 (IN2): Input 2
- 7 (RG): Receiver Enable
- 8 (DE): Driver Output Enable
- 9 (RE): Receiver Output Enable
- 10 (CTS): Clear to Send
- 11 (RTS): Request to Send
- 12 (DSR): Data Set Ready
- 13 (DTR): Data Terminal Ready
- 14 (DCD): Data Carrier Detect
(Tip: For detailed pinout information, please refer to the corresponding datasheet.)
Key Features
- High-Speed Communication: Supports data rates up to 250kbps for fast and reliable serial communication.
- Low Power Operation: Designed for low power consumption, making it suitable for battery-powered applications.
- Single Power Supply: Operates on a single 3.3V power supply, simplifying system design.
- Compact Package: Housed in a small 32-TQFN package for space-constrained designs.
- Shutdown Mode: Features a low power shutdown mode for additional power savings.
Application
- Serial Communication: Ideal for serial communication applications requiring high-speed and reliable data transmission.
- Embedded Systems: Suitable for embedded systems that need serial connectivity with low power consumption.
- Industrial Automation: Used in industrial automation systems for communication with various devices and equipment.
Where to Use
The MAX3243EIRHBR is suitable for applications that require robust and high-speed serial communication, especially in embedded systems and industrial automation. It is ideal for systems where low power consumption and small form factor are important.
How to Use
Connect the MAX3243EIRHBR to your serial communication bus or microcontroller by wiring the IN1, IN2, OUT1, and OUT2 pins to the corresponding communication lines. Ensure proper power supply connections to VCC and GND. Use the control pins (RG, DE, RE, CTS, RTS, DSR, DTR, DCD) to enable/disable and control the data transmission. For detailed usage instructions, refer to the datasheet.
Application Circuit
The application circuit diagram for the MAX3243EIRHBR illustrates how to connect the transceiver to a serial communication bus. It includes connections for power supply, ground, data lines, and control pins, ensuring proper operation and reliable data transmission.
(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)
Equivalents
- MAX3232E: A similar RS-232 transceiver from Maxim Integrated with comparable features and compatibility.
- SP3232E: An alternative RS-232 transceiver from Exar Corporation offering similar functionality and performance.
Complementary
The MAX3243EIRHBR can be complemented by the MAX232E, which offers voltage level conversion and additional features for serial communication applications.
When selecting complementary transceivers, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.
Frequently Asked Questions
Q: What is the maximum data rate supported by the MAX3243EIRHBR?
A: The MAX3243EIRHBR supports data rates up to 250kbps. For more details, refer to the datasheet for specific operating conditions and limitations.
Q: Can the MAX3243EIRHBR be used in battery-powered devices?
A: Yes, the MAX3243EIRHBR is designed for low-power operation, making it suitable for battery-powered applications.

Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Drivers per package | 3 | Receivers per package | 5 |
Logic voltage (min) (V) | 3.3 | Data rate (max) (MBps) | 0.5 |
Main supply voltage (nom) (V) | 3.3, 5 | Features | Auto-Powerdown |
ESD HBM (kV) | 15 | Rating | Catalog |
Operating temperature range (°C) | -40 to 85, 0 to 70 | Vout (typ) (V) | 5.4 |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is MAX3243EIRHBR?
The MAX3243EIRHBR is a 3V to 5.5V, multi-channel RS-232 transceiver with ±15kV ESD protection, designed by Maxim Integrated. It is suitable for applications requiring robust serial communication in industrial, medical, and communication systems.
How Does MAX3243EIRHBR Work?
The MAX3243EIRHBR works by providing a bidirectional interface between the low-voltage logic signals and the high-voltage RS-232 signals. It includes integrated charge pumps to generate the RS-232 voltage levels, and it also features ESD protection to safeguard against electrostatic discharge events, ensuring reliable communication.
How Many Pins does MAX3243EIRHBR have and What are the Functions of the Pinout Configuration?
The MAX3243EIRHBR is housed in a 32-pin TQFN (Thin Quad Flat No-Lead) package. The pinout configuration includes:
- VCC: Power supply pin.
- GND: Ground pin.
- IN1, IN2, IN3, IN4: Logic-level input pins for multiple channels.
- OUT1, OUT2, OUT3, OUT4: RS-232 output pins for multiple channels.
- SHDN: Shutdown pin for power management.
- EN1, EN2, EN3, EN4: Enable pins for each channel.
- RG1, RG2, RG3, RG4: Receiver output enable pins for each channel.
What are the Pros and Cons of MAX3243EIRHBR?
Pros:
- Multi-Channel: Provides multiple independent transceivers in a single package, saving board space.
- ESD Protection: Offers built-in ESD protection for enhanced robustness.
- Wide Voltage Range: Supports a wide operating voltage range for versatility in system design.
- Low-Power Shutdown Mode: Features a low-power shutdown mode for power management.
- RoHS Compliant: Complies with RoHS regulations for environmental friendliness.
Cons:
- Complexity: Multi-channel transceivers may require careful design consideration for proper channel isolation and signal integrity.
- Cost: Multi-channel transceivers may have higher cost compared to single-channel alternatives.
Are There Any Equivalents/Alternatives to MAX3243EIRHBR for Recommendation?
- The SN75C3221 from Texas Instruments is a similar multi-channel RS-232 transceiver with ESD protection.
- Alternatives to the MAX3243EIRHBR include the SP3243E from Exar and the ST3232 from STMicroelectronics.
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