Overview
The MAX232CASE+ is a dual driver/receiver integrated circuit produced by Analog Devices Inc./Maxim Integrated. It is designed to meet or exceed the TIA/EIA-232-F and ITU recommendation V.28 standards for RS-232 communications. This device operates from a single 5V power supply and includes a capacitive voltage generator to supply the necessary voltage levels for RS-232 communication. The MAX232CASE+ is widely used in various applications requiring RS-232 interface translation.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Supply Voltage | 5V ±10% | V |
| Supply Current | 8mA (typical) | mA |
| Data Rate | Up to 120kbit/s | kbit/s |
| Number of Drivers/Receivers | 2/2 | - |
| RS-232 Input Voltage Range | ±30V | V |
| RS-232 Input Threshold | 1.3V (typical low), 1.8V (typical high) | V |
| RS-232 Input Hysteresis | 0.5V (typical) | V |
| ESD Protection | ±15kV Human-body model (HBM) | kV |
| Operating Temperature | 0°C to +70°C (up to -55°C to +125°C for some packages) | °C |
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.
- Includes two drivers and two receivers.
- Accepts ±30V input levels.
- Low supply current: 8mA typical.
- ESD protection exceeds JESD 22 – 2000V Human-body model (A114-A) and up to ±15kV HBM.
- Integrated capacitive voltage generator.
Applications
- TIA/EIA-232-F interfaces.
- Battery-powered systems.
- Terminals and modems.
- Computers and other RS-232 compatible devices.
- Portable diagnostics equipment.
- Multidrop RS-232 networks.
Q & A
- What is the MAX232CASE+ used for?
The MAX232CASE+ is used for RS-232 interface translation, converting TTL/CMOS levels to RS-232 levels and vice versa.
- What is the operating voltage of the MAX232CASE+?
The MAX232CASE+ operates from a single 5V power supply.
- How many drivers and receivers does the MAX232CASE+ have?
The MAX232CASE+ has two drivers and two receivers.
- What is the maximum data rate supported by the MAX232CASE+?
The MAX232CASE+ supports data rates up to 120kbit/s.
- What kind of ESD protection does the MAX232CASE+ offer?
The MAX232CASE+ offers ESD protection exceeding ±15kV Human-body model (HBM).
- What are the typical applications of the MAX232CASE+?
Typical applications include TIA/EIA-232-F interfaces, battery-powered systems, terminals, modems, and computers.
- How does the MAX232CASE+ generate the necessary voltage levels for RS-232 communication?
The MAX232CASE+ includes a capacitive voltage generator that uses four capacitors to supply the necessary voltage levels from a single 5V supply.
- What is the typical supply current of the MAX232CASE+?
The typical supply current of the MAX232CASE+ is 8mA.
- What is the input voltage range for the RS-232 inputs on the MAX232CASE+?
The RS-232 inputs can accept voltage levels ranging from ±30V.
- What is the operating temperature range for the MAX232CASE+?
The operating temperature range is typically 0°C to +70°C, but can extend to -55°C to +125°C for some packages.
