Overview
The MAX232BEAWE+ is an integrated circuit produced by Analog Devices Inc./Maxim Integrated, designed to convert signals between TIA-232 (RS-232) serial ports and TTL-compatible digital logic circuits. This dual driver/receiver IC is particularly useful in systems where ±12V power is not available, as it operates from a single 5V power supply. The MAX232BEAWE+ includes a capacitive voltage generator that supplies the necessary TIA/EIA-232-F voltage levels using external capacitors.
Key Specifications
| Characteristic | Value |
|---|---|
| Supply Voltage | 4.5V ~ 5.5V |
| Package Type | 16-SOIC |
| Number of Drivers/Receivers | 2/2 |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Data Rate | Up to 200kbps |
| RS-232 Input Voltage Range | ±30V |
| RS-232 Input Threshold | Typical: 1.3V, Hysteresis: 0.5V |
Key Features
- Meets or exceeds TIA/EIA-232-F and ITU recommendation V.28 specifications.
- Operates from a single 5V power supply with 1µF charge-pump capacitors (can also use 0.1µF capacitors for the MAX232A version).
- Includes two drivers and two receivers.
- Supports data rates up to 120kbps (up to 200kbps for the MAX232A version).
- Low supply current: 8mA typical.
- ESD protection exceeds JESD 22 – 2000V Human-body model (A114-A), with an upgrade to 15kV HBM available in the MAX202 device.
- Converts TIA/EIA-232-F inputs to 5V TTL/CMOS levels and vice versa.
Applications
- TIA/EIA-232-F interfaces.
- Battery-powered systems.
- Terminals and modems.
- Computers and portable computers.
- Low-power RS-232 systems and multidrop RS-232 networks.
Q & A
- What is the primary function of the MAX232BEAWE+ IC?
The MAX232BEAWE+ is a dual driver/receiver that converts signals between TIA-232 (RS-232) serial ports and TTL-compatible digital logic circuits.
- What is the operating voltage range of the MAX232BEAWE+?
The MAX232BEAWE+ operates from a single 5V power supply, with a voltage range of 4.5V to 5.5V.
- How many drivers and receivers does the MAX232BEAWE+ have?
The MAX232BEAWE+ has two drivers and two receivers.
- What is the maximum data rate supported by the MAX232BEAWE+?
The MAX232BEAWE+ supports data rates up to 200kbps.
- What type of ESD protection does the MAX232BEAWE+ offer?
The MAX232BEAWE+ offers ESD protection that exceeds JESD 22 – 2000V Human-body model (A114-A), with an upgrade to 15kV HBM available in the MAX202 device.
- What are the typical applications of the MAX232BEAWE+?
The MAX232BEAWE+ is used in TIA/EIA-232-F interfaces, battery-powered systems, terminals, modems, computers, and low-power RS-232 systems.
- How does the MAX232BEAWE+ handle RS-232 input voltages?
The MAX232BEAWE+ can accept RS-232 input voltages up to ±30V and converts them to 5V TTL/CMOS levels.
- What is the typical threshold and hysteresis for the receivers in the MAX232BEAWE+?
The receivers have a typical threshold of 1.3V and a typical hysteresis of 0.5V.
- Can the MAX232BEAWE+ be used in battery-powered systems?
- What are the package options available for the MAX232BEAWE+?
The MAX232BEAWE+ is available in a 16-SOIC package.
