Part Number: ST3232EBDR

Manufacturer: STMicroelectronics

Description: IC Transceiver Full 2/2 16SO

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of ST3232EBDR

Datasheet  ST3232EBDR datasheet
Category Integrated Circuits (ICs)
Family Interface – Drivers, Receivers, Transceivers
Manufacturer STMicroelectronics
Packaging Tape & Reel (TR)
Part Status Active
Type Transceiver
Protocol RS232
Number of Drivers/Receivers 2/2
Duplex Full
Receiver Hysteresis 500mV
Data Rate 250kbps
Voltage – Supply 3 V ~ 5.5 V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 16-SOIC (0.154″, 3.90mm Width)
Supplier Device Package 16-SO


This is “The Complete Guide to ST3232EBDR: 2/2 Transceiver Full RS232 IC (16-SO)”. The ST3232EBDR is a high-performance, flexible IC made for communication interfaces. It has a wide range of features and capabilities to meet the needs of many different uses.

ST3232EBDR Key Features

  • The ST3232EBDR is a good choice for communication interfaces because it uses little power and can send and receive data at a fast rate.
  • Enhanced electrostatic discharge (ESD) protection, with ratings of 8 kV using the IEC1000-4-2 contact discharge model and 15 kV using the human body model, provides reliable operation in harsh environments.
  • The dual charge pump and the IC’s low-dropout transmission output stage make it possible for the IC to work like an RS-232 device even when powered by voltages from 3 to 5 V.
  • The charge pump works well from a 3 V source with only four small 0.1 F standard external capacitors. This makes the design simpler and reduces the number of parts.

Overview of ST3232E

The ST3232E is a 3-volt IC that can be used for EIA/TIA-232 and V.28/V.24 transmission interfaces. It is very flexible. It has a variety of features that make it a good choice for many different uses.

● Low Power Needs and High Data Rates

The ST3232E is made to work with little power, which makes it an energy-efficient option. Even though it uses little power, it can send and receive large amounts of data quickly and efficiently.

● Enhanced electrostatic discharge (ESD) protection

The ST3232E has improved electrostatic discharge (ESD) protection, which makes it work reliably even in tough settings. Using the IEC1000-4-2 contact discharge model, it protects up to 8 kV, and using the human body model, it protects up to 15 kV. This amount of ESD protection keeps the IC and the devices it is connected to safe from damage that could be caused by an electrostatic discharge.

● Patented Low-Dropout Transmitter Output Stage

The ST3232E’s patented low-dropout transmitter output stage is one of its best features. Because of its unique design, the IC can work like a real RS-232 device at a wide range of input voltages, from 3 to 5 V. The ST3232E uses a dual-charge pump to make sure that the signal integrity is at its best and that transmission is reliable.

In short, the ST3232E is a solution for EIA/TIA-232 and V.28/V.24 transmission interfaces that can be powered by 3 V. It uses little power and can send and receive data at a high rate, which makes it a good choice for many purposes. The ST3232E makes sure that RS-232 works well and reliably because it has better ESD safety and a proprietary low-dropout transmitter output stage.

Power Supply and Charge Pump

The ST3232E works with a 3 V power source, so it can be used with systems that use low voltage. This makes it good for applications where saving power is important.

The IC has a dual charge pump, which is what produces the RS-232 voltage levels that are needed for communication. The dual-charge pump design makes sure that it works well with voltages from 3 to 5 V. This function lets the ST3232E work like a real RS-232 device, making it easy to connect to RS-232 interfaces.

Only four small standard capacitors with a value of 0.1 F are needed for the charge pump to work. These capacitors are very important for regulating and stabilizing the voltage, which makes sure that the charge pump works well and reliably.

Receiver and Driver Configuration

The ST3232E has two receivers and two drivers, which makes it more flexible and better able to deal with communication connections. Receivers are a key part of keeping data safe because they find and understand receiving signals correctly. This makes sure that gadgets can talk to each other reliably.

On the other hand, it is up to the drivers to provide the RS-232 output values that are needed for proper data transmission. The ST3232E’s drivers make sure that it meets RS-232 standards, so it works reliably and well. They can handle data rates of up to 250 kbps, which makes it easy to send and receive data in many situations.

ESD Protection

The ST3232E has improved electrostatic discharge (ESD) security, which keeps the IC and connected devices safe from electrostatic discharge events that could damage them.

The IC meets the IEC1000-4-2 standard by protecting against contact discharges of up to 8 kV. This level of protection makes sure that the device can handle ESD events in places where they happen often. This lowers the risk of operational problems and component harm.

The ST3232E also protects against 15 kV using the human body model. This amount of protection adds an extra layer of strength, so the device will still work well even if it is exposed to more ESD.

Overall, the ST3232E is a good choice for applications where ESD events are a worry because it has better ESD protection features, such as 8 kV contact discharge and 15 kV human body model protection.

ST3232EBDR Applications

The ST3232EBDR is a good choice for many communication interface uses, such as industrial automation and embedded devices. Its features match the needs of these applications, which makes it a great choice for reliable and efficient data sharing.

In industrial automation, the ST3232EBDR’s low power needs, high data rate, and improved ESD protection make contact between devices smooth and reliable. It can be used to link sensors, actuators, and control systems, making it easier to share data in real time and run the system.

The versatility and efficiency of the ST3232EBDR can help embedded devices, such as microcontrollers and IoT devices. It uses little power, so it can be used in battery-powered applications, and its high data rate makes it easy to send data to places with limited resources.

The ST3232EBDR has been used successfully in the following situations:

  • System for automating a factory: The ST3232EBDR has been used successfully in industrial settings to allow PLCs, HMIs, and other automation devices to talk to each other and transfer data in a safe and effective way.
  • Medical devices: Because the IC is durable and protected against ESD, it can be used in medical applications where data security and patient safety are very important. It has been used in medical tools for monitoring and diagnosing.


The ST3232EBDR is a high-performance solution for communication interface systems that can be used in a variety of ways. It is a great choice for reliable data communication because it uses little power, can send and receive data at a fast rate, and has better ESD protection.

By looking into how the ST3232EBDR can be used in communication interface projects, data can be sent and received quickly and without any problems. The IC is easy to get from reputable distributors of electrical parts, making it simple to find and quick to ship.

Please contact us at ICRFQ for more information or to place an order. Find out what the ST3232EBDR can do, and use its speed and reliability to make your communication interface projects better.

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