Overview
The MAX232MLP, produced by Analog Devices Inc./Maxim Integrated, is a dual driver/receiver integrated circuit designed to meet the requirements of the TIA/EIA-232-F and ITU recommendation V.28 standards. This component is particularly notable for its ability to operate from a single 5V power supply, eliminating the need for a bipolar ±12V supply. It incorporates an integrated charge pump circuit, which generates the necessary voltage levels for RS-232 communication from the single 5V supply.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 5V ± 0.5V |
| Supply Current | 8mA typical |
| Data Rate | Up to 120kbit/s |
| Drivers/Receivers | 2 drivers, 2 receivers |
| Input Levels | ±30V |
| ESD Protection | Exceeds JESD 22 – 2000V Human-body model (A114-A) |
| Package Types | SOIC (16), PDIP (16), SOP (16) |
| Package Size | Varies by package type (e.g., SOIC: 9.9mm × 6mm, PDIP: 19.3mm × 9mm) |
Key Features
- Operates from a single 5V power supply with integrated charge pump circuitry.
- Meets or exceeds TIA/EIA-232-F and ITU recommendation V.28 standards.
- Two drivers and two receivers for full-duplex communication.
- Low supply current: 8mA typical.
- ESD protection exceeds JESD 22 – 2000V Human-body model (A114-A).
- Accepts ±30V input levels.
- Each receiver converts TIA/EIA-232-F inputs to 5V TTL/CMOS levels.
Applications
- Battery-powered systems.
- Terminals.
- Modems.
- Computers.
- Any system requiring RS-232 communication.
Q & A
- What is the primary function of the MAX232MLP? The MAX232MLP is a dual driver/receiver IC designed for RS-232 communication, converting TTL/CMOS levels to RS-232 levels and vice versa.
- What power supply does the MAX232MLP require? The MAX232MLP operates from a single 5V power supply.
- What is the maximum data rate supported by the MAX232MLP? The MAX232MLP supports data rates up to 120kbit/s.
- How many drivers and receivers does the MAX232MLP have? The MAX232MLP has two drivers and two receivers.
- What is the input voltage range for the MAX232MLP? The MAX232MLP can accept input levels of ±30V.
- Does the MAX232MLP have ESD protection? Yes, the MAX232MLP has ESD protection that exceeds JESD 22 – 2000V Human-body model (A114-A).
- In what types of packages is the MAX232MLP available? The MAX232MLP is available in SOIC, PDIP, and SOP packages.
- What are some common applications for the MAX232MLP? Common applications include battery-powered systems, terminals, modems, and computers.
- How does the MAX232MLP generate the necessary voltage levels for RS-232 communication? The MAX232MLP uses an integrated charge pump circuit to generate the necessary voltage levels from a single 5V supply.
- What is the typical supply current of the MAX232MLP? The typical supply current of the MAX232MLP is 8mA.
