Overview
The MAX232BEASE+ is a dual driver/receiver integrated circuit produced by Analog Devices Inc./Maxim Integrated. This component is designed to facilitate communication between devices using the TIA/EIA-232-F and ITU recommendation V.28 standards. It operates from a single 5V power supply and includes a capacitive voltage generator to produce the necessary voltage levels for RS-232 communication. The MAX232BEASE+ is widely used in various applications requiring serial communication, such as battery-powered systems, terminals, modems, and computers.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Supply Voltage | 5V | Single power supply operation |
| Charge-Pump Capacitors | 1µF (or 0.1µF for some variants) | External capacitors required for voltage generation |
| Data Rate | Up to 120kbit/s (or 250kbit/s for MAX232E) | Maximum data transfer rate |
| Drivers/Receivers | 2 drivers, 2 receivers | Number of drivers and receivers on the chip |
| Input Voltage Range | ±30V | Acceptable input voltage range for RS-232 inputs |
| Supply Current | 8mA typical | Average current drawn from the power supply |
| ESD Protection | ±15kV HBM, ±8kV IEC61000-4-2 contact discharge | Electrostatic discharge protection levels |
| Package | 16SOIC | Package type and pin count |
Key Features
- Meets or exceeds TIA/EIA-232-F and ITU recommendation V.28 standards.
- Operates from a single 5V power supply with 1µF charge-pump capacitors.
- Two drivers and two receivers for full-duplex communication.
- Accepts ±30V input levels and converts them to 5V TTL/CMOS levels.
- Low supply current: 8mA typical.
- ESD protection exceeds JESD 22 – 2000V Human-body model (HBM) and IEC61000-4-2 standards.
- Shorted and open fail-safe for receiver outputs.
Applications
- TIA/EIA-232-F compliant systems.
- Battery-powered systems.
- Terminals and data terminals.
- Modems and other serial communication devices.
- Computers and peripherals requiring serial communication.
Q & A
- What is the primary function of the MAX232BEASE+?
The MAX232BEASE+ is a dual driver/receiver that converts TTL/CMOS logic levels to RS-232 levels and vice versa.
- What is the operating voltage of the MAX232BEASE+?
The MAX232BEASE+ operates from a single 5V power supply.
- What are the required external components for the MAX232BEASE+?
The MAX232BEASE+ requires four 1µF (or 0.1µF for some variants) external capacitors for the charge pump.
- What is the maximum data rate supported by the MAX232BEASE+?
The MAX232BEASE+ supports data rates up to 120kbit/s (or 250kbit/s for the MAX232E variant).
- How many drivers and receivers are included in the MAX232BEASE+?
The MAX232BEASE+ includes two drivers and two receivers.
- What is the input voltage range for the RS-232 inputs on the MAX232BEASE+?
The RS-232 inputs can accept voltage levels ranging from ±30V.
- What level of ESD protection does the MAX232BEASE+ offer?
The MAX232BEASE+ offers ESD protection exceeding ±15kV HBM and ±8kV IEC61000-4-2 contact discharge.
- What is the typical supply current of the MAX232BEASE+?
The typical supply current is 8mA.
- In what package is the MAX232BEASE+ available?
The MAX232BEASE+ is available in a 16SOIC package.
- What are some common applications for the MAX232BEASE+?
Common applications include battery-powered systems, terminals, modems, and computers requiring serial communication.
