Overview
The MAX232CEASE+ is a dual EIA-232 drivers and receivers integrated circuit produced by Analog Devices Inc./Maxim Integrated. This device is designed to facilitate communication between TTL/CMOS logic levels and EIA-232-F (formerly known as RS-232) serial communication standards. It operates from a single 5V power supply, eliminating the need for a bipolar ±12V supply, and includes an integrated charge pump circuit to generate the necessary voltage levels for EIA-232-F operation.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Supply Voltage | 4.5V to 5.5V | |
| Supply Current | 8mA typical | |
| Data Rate | Up to 120kbit/s | |
| Input Levels | ±30V | |
| ESD Protection | Exceeds JESD 22 – 2000V Human-body model (A114-A) | Improved ESD protection up to 15kV HBM available in MAX202 |
| Package Type | 16-SOIC Surface Mount | |
| Charge Pump Capacitors | 1µF (can operate with 0.1µF capacitors) |
Key Features
- Meets or exceeds TIA/EIA-232-F and ITU recommendation V.28 standards.
- Operates from a single 5V power supply with integrated charge pump circuitry.
- Includes two drivers and two receivers.
- Low supply current: 8mA typical.
- ESD protection exceeds JESD 22 – 2000V Human-body model (A114-A).
- Each receiver converts EIA-232-F inputs to 5V TTL/CMOS levels.
Applications
- TIA/EIA-232-F compliant systems.
- Battery-powered systems.
- Terminals and modems.
- Computers and other serial communication devices.
Q & A
- What is the primary function of the MAX232CEASE+?
The MAX232CEASE+ is a dual EIA-232 drivers and receivers IC that converts between TTL/CMOS logic levels and EIA-232-F serial communication standards.
- What is the operating voltage range of the MAX232CEASE+?
The operating voltage range is between 4.5V and 5.5V.
- What is the maximum data rate supported by the MAX232CEASE+?
The MAX232CEASE+ supports data rates up to 120kbit/s.
- What type of ESD protection does the MAX232CEASE+ offer?
The MAX232CEASE+ offers ESD protection that exceeds JESD 22 – 2000V Human-body model (A114-A).
- What package type is the MAX232CEASE+ available in?
The MAX232CEASE+ is available in a 16-SOIC Surface Mount package.
- Can the MAX232CEASE+ operate with different capacitor values?
Yes, it can operate with 1µF or 0.1µF charge pump capacitors.
- What are some common applications of the MAX232CEASE+?
Common applications include battery-powered systems, terminals, modems, and computers.
- Does the MAX232CEASE+ require a bipolar ±12V supply?
No, it operates from a single 5V power supply using integrated charge pump circuitry.
- How many drivers and receivers does the MAX232CEASE+ include?
The MAX232CEASE+ includes two drivers and two receivers.
- What is the typical supply current of the MAX232CEASE+?
The typical supply current is 8mA.
