Overview
The MAX232AEUE+ 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 applications where ±12V power supplies are not available, as it operates from a single 5V supply. The MAX232AEUE+ includes on-chip charge pumps that generate the necessary voltage levels for RS-232 communication, eliminating the need for external bipolar ±12V supplies.
Key Specifications
| Specification | Value |
|---|---|
| Supply Voltage | +5V |
| Number of Drivers/Receivers | 2 Drivers, 2 Receivers |
| RS-232 Voltage Levels | ±7.5V (generated by on-chip charge pumps) |
| TTL Voltage Levels | 0V to 5V |
| Data Rate | Up to 120 kbps |
| Input Levels | ±30V |
| Supply Current | 8mA typical |
| ESD Protection | Exceeds JESD 22 – 2000V Human-body model (A114-A) |
| Shutdown Mode Power | Less than 5µW |
| Operating Temperature | 0°C to +70°C (up to -55°C to +125°C for some packages) |
| Package Options | Various packages including 16-DIP, 16-SOIC |
Key Features
- Saves board space with integrated charge pump circuitry and no need for external bipolar ±12V supplies.
- Operates from a single +5V power supply.
- Includes two drivers and two receivers for converting between RS-232 and TTL logic levels.
- Supports data rates up to 120 kbps.
- Low supply current: 8mA typical.
- ESD protection exceeds JESD 22 – 2000V Human-body model.
- Low-power shutdown mode with less than 5µW power dissipation.
- Meets or exceeds TIA/EIA-232-F and ITU recommendation V.28 specifications.
Applications
- TIA/EIA-232-F and V.28/V.24 communications interfaces.
- Battery-powered systems.
- Terminals and modems.
- Computers and portable computers.
- Low-power modems.
- Interface translation in multidrop RS-232 networks.
Q & A
- What is the primary function of the MAX232AEUE+ IC?
The MAX232AEUE+ is a dual driver/receiver that converts signals between TIA-232 (RS-232) serial ports and TTL-compatible digital logic circuits.
- What power supply does the MAX232AEUE+ require?
The MAX232AEUE+ operates from a single +5V power supply.
- How many drivers and receivers does the MAX232AEUE+ have?
The MAX232AEUE+ includes two drivers and two receivers.
- What are the RS-232 voltage levels generated by the MAX232AEUE+?
The MAX232AEUE+ generates RS-232 voltage levels of approximately ±7.5V using on-chip charge pumps.
- What is the maximum data rate supported by the MAX232AEUE+?
The MAX232AEUE+ supports data rates up to 120 kbps.
- What is the typical supply current of the MAX232AEUE+?
The typical supply current is 8mA.
- Does the MAX232AEUE+ have ESD protection?
- What is the power dissipation in shutdown mode?
The power dissipation in shutdown mode is less than 5µW.
- What are some common applications of the MAX232AEUE+?
- What are the operating temperature ranges for the MAX232AEUE+?
