Overview
The MAX232CWE+ is a versatile integrated circuit designed by Analog Devices Inc./Maxim Integrated, specifically for RS-232 communication. This device is part of the MAX232 family and is known for its ability to operate from a single 5V power supply, making it highly efficient and convenient for various applications. The MAX232CWE+ includes a capacitive voltage generator that enables the device to generate the necessary voltage levels for RS-232 communication from a single 5V supply.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Number of Drivers/Receivers | 2 drivers and 2 receivers | 2/2 |
| Data Rate | Maximum data transfer rate | 120 kbps |
| Supply Voltage | Operating voltage range | 4.5V to 5.5V |
| Operating Temperature | Temperature range for operation | 0°C to 70°C |
| Supply Current | Typical supply current | 8 mA (typical), 10 mA (maximum) |
| Package Type | Physical package of the IC | 16-SOIC (Surface Mount) |
| Receiver Hysteresis | Hysteresis of the receiver inputs | 500 mV |
| ESD Protection | Electrostatic discharge protection | Exceeds JESD 22 – 2000V Human-body model (A114-A), improved to 15kV HBM for some variants |
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.
- Supports data transfer rates up to 120 kbps.
- Includes two drivers and two receivers.
- Handles input levels up to ±30V.
- Low supply current: 8 mA typical.
- ESD protection exceeds JESD 22 – 2000V Human-body model (A114-A), with some variants offering improved 15kV HBM protection.
- Surface mount package (16-SOIC) for easy integration into modern designs.
Applications
- TIA/EIA-232-F compliant systems.
- Battery-powered systems due to low power consumption.
- Terminals and modems requiring RS-232 communication.
- Computers and other devices needing serial communication interfaces.
Q & A
- What is the MAX232CWE+ used for?
The MAX232CWE+ is used for RS-232 communication, providing dual drivers and receivers to convert between RS-232 and TTL/CMOS logic levels.
- What is the operating voltage range of the MAX232CWE+?
The operating voltage range is 4.5V to 5.5V.
- What is the maximum data rate supported by the MAX232CWE+?
The MAX232CWE+ supports data transfer rates up to 120 kbps.
- What type of package does the MAX232CWE+ come in?
The MAX232CWE+ comes in a 16-SOIC (Surface Mount) package.
- Does the MAX232CWE+ have ESD protection?
- What are the typical applications of the MAX232CWE+?
The MAX232CWE+ is typically used in TIA/EIA-232-F compliant systems, battery-powered systems, terminals, modems, and computers.
- How many drivers and receivers does the MAX232CWE+ have?
The MAX232CWE+ has two drivers and two receivers.
- What is the receiver hysteresis of the MAX232CWE+?
The receiver hysteresis is 500 mV.
- What is the typical supply current of the MAX232CWE+?
The typical supply current is 8 mA.
- Can the MAX232CWE+ handle high input voltage levels?
