Texas Instruments

SN75C3221EPW  

Drivers, Receivers, Transceivers

SN75C3221EPW Description

The SN75C3221EPW is a full-duplex transceiver designed for RS232 communication, manufactured by Texas Instruments. This interface IC chip features a single driver and single a receiver, making it ideal for applications requiring reliable and efficient data transmission. The device operates within a temperature range of 0°C to 70°C, ensuring stable performance in a variety of environmental conditions. It supports a data rate of up to 1 Mbps, which is suitable for moderate-speed communication needs.

The SN75C3221EPW is designed for surface mount applications, making it suitable for compact and space-efficient designs. It is housed in a 16-pin TSSOP package, which is robust and easy to integrate into modern electronic systems. The device operates on a supply voltage range of 3V to 5.5V, providing flexibility in power supply options and ensuring compatibility with a wide range of systems.

SN75C3221EPW Features

• Full-Duplex Communication: The SN75C3221EPW supports full-duplex communication, allowing simultaneous data transmission and reception. This feature is essential for applications requiring real-time data exchange, such as industrial automation and remote monitoring systems.
• Receiver Hysteresis: The device features a receiver hysteresis of 500 mV, which enhances noise immunity and ensures reliable data reception even in noisy environments.
• Wide Operating Voltage Range: With a supply voltage range of 3V to 5.5V, the SN75C3221EPW offers flexibility in power supply options, making it suitable for a variety of applications.
• Surface Mount Technology: The surface mount package type allows for easy integration into compact and space-efficient designs, which is crucial for modern electronic systems.
• Compliance and Standards: The SN75C3221EPW is REACH unaffected and RoHS3 compliant, ensuring that it meets the latest environmental and safety standards. It is also classified under ECCN EAR99 and HTSUS 8542.39.0001, facilitating international trade and regulatory compliance.
• Moisture Sensitivity Level: The device has an MSL rating of 1 (Unlimited), indicating that it is not sensitive to moisture, which is beneficial for long-term storage and reliability.

SN75C3221EPW Applications

The SN75C3221EPW is well-suited for a variety of applications where reliable RS232 communication is required. Some specific use cases include:

• Industrial Automation: The full-duplex communication capability and robust design make it ideal for industrial control systems where real-time data exchange is critical.
• Remote Monitoring Systems: The device's wide operating temperature range and noise immunity ensure reliable performance in remote and harsh environments.
• Data Acquisition Systems: The SN75C3221EPW's moderate data rate and compact package make it suitable for data acquisition systems that require efficient and reliable communication.
• Medical Equipment: The device's compliance with environmental and safety standards makes it suitable for medical equipment where reliability and safety are paramount.

Conclusion of SN75C3221EPW

The SN75C3221EPW is a versatile and reliable RS232 transceiver that offers a range of features and benefits suitable for various applications. Its full-duplex communication capability, wide operating voltage range, and robust design make it an excellent choice for industrial automation, remote monitoring, and data acquisition systems. While the product is now obsolete, it remains a valuable component for existing systems and legacy designs. Texas Instruments' commitment to quality and compliance ensures that the SN75C3221EPW meets the highest standards of performance and reliability.

SN75C3221EPW Documents

Download datasheets and manufacturer documentation for SN75C3221EPW

Datasheets :

SN65C3221E, SN75C3221E      

PCN Obsolescence/ EOL :

Mult Dev EOL 22/Jul/2021      

PCN Design/Specification :

Design 22/Feb/2022