Overview
The MAX232EESE+T is a dual RS-232 driver and receiver integrated circuit produced by Analog Devices Inc./Maxim Integrated. This component is designed to facilitate communication between TTL/CMOS logic levels and RS-232 serial interface standards. It operates from a single 5V power supply and includes an integrated charge pump to generate the necessary voltage levels for RS-232 compliance.
The MAX232EESE+T is part of a family of RS-232 transceivers known for their high ESD protection and robust performance in various applications. It is particularly useful in systems requiring reliable serial communication with protection against electrical discharges.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Type | Transceiver |
| Protocol | RS-232 |
| Number of Drivers/Receivers | 2/2 |
| Duplex | Full |
| Receiver Hysteresis | 500 mV |
| Data Rate | 120 kbps |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 16-SOIC (0.154, 3.90mm Width) |
| RoHS Status | ROHS3 Compliant |
| ESD Protection | ±15kV Human-body model (HBM), ±8kV IEC61000-4-2 Contact discharge, ±15kV IEC61000-4-2 Air-gap discharge |
Key Features
- Meets or exceeds TIA/RS-232-F and ITU recommendation V.28 standards.
- High ESD protection: ±15kV Human-body model (HBM), ±8kV IEC61000-4-2 Contact discharge, and ±15kV IEC61000-4-2 Air-gap discharge.
- Operates from a single 5V power supply with integrated charge pump circuitry.
- Two drivers and two receivers with full duplex capability.
- Low supply current: 8mA typical.
- Each receiver converts RS-232 inputs to 5V TTL/CMOS levels with a typical threshold of 1.3V and hysteresis of 0.5V.
- Receivers can accept up to ±30V inputs and have shorted and open fail-safe features.
- Drivers convert TTL/CMOS input levels to RS-232 levels with outputs protected against shorts to ground.
Applications
- Battery-powered systems.
- Terminals and modems.
- Computers and other serial communication devices.
- Notebook computers and other portable devices where frequent RS-232 connection changes occur.
- Any system requiring reliable serial communication with robust ESD protection.
Q & A
- What is the MAX232EESE+T used for?
The MAX232EESE+T is used to convert TTL/CMOS logic levels to RS-232 serial interface standards and vice versa.
- What is the operating voltage range of the MAX232EESE+T?
The operating voltage range is 4.5V to 5.5V.
- What is the data rate capability of the MAX232EESE+T?
The MAX232EESE+T can operate at data rates up to 120 kbps.
- What kind of ESD protection does the MAX232EESE+T offer?
The MAX232EESE+T offers ±15kV Human-body model (HBM), ±8kV IEC61000-4-2 Contact discharge, and ±15kV IEC61000-4-2 Air-gap discharge protection.
- What is the package type of the MAX232EESE+T?
The MAX232EESE+T comes in a 16-SOIC package.
- Is the MAX232EESE+T RoHS compliant?
Yes, the MAX232EESE+T is ROHS3 compliant.
- What are the typical applications of the MAX232EESE+T?
Typical applications include battery-powered systems, terminals, modems, computers, and other devices requiring serial communication.
- How many drivers and receivers does the MAX232EESE+T have?
The MAX232EESE+T has two drivers and two receivers.
- What is the operating temperature range of the MAX232EESE+T?
The operating temperature range is -40°C to 85°C.
- Does the MAX232EESE+T require external charge-pump capacitors?
Yes, it requires four 1µF external capacitors for the charge pump.
