Overview
The MAX232EID, produced by Texas Instruments, is a dual driver and receiver integrated circuit designed to facilitate communication over RS-232 interfaces. It includes a capacitive voltage generator that enables the device to generate RS-232-F compliant voltage levels from a single 5V power supply. This component is particularly useful in systems that require reliable and robust serial communication, such as battery-powered systems, terminals, modems, and computers.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 4.5 to 5.5 | V |
| Operating Temperature Range | -40 to 85 | °C |
| Data Rate | Up to 250 kbit/s | |
| Number of Drivers and Receivers | Two drivers, two receivers | |
| Input Voltage Range (RS-232) | ±30 V | |
| ESD Protection (Human-body model) | ±15 kV | |
| ESD Protection (IEC61000-4-2, Contact discharge) | ±8 kV | |
| ESD Protection (IEC61000-4-2, Air-gap discharge) | ±15 kV | |
| Supply Current (typical) | 8 mA | |
| Package Type | SOIC (D), 16 pins |
Key Features
- Meets or exceeds TIA/RS-232-F and ITU recommendation V.28 standards.
- Operates from a single 5V power supply with 1µF charge-pump capacitors.
- Provides ESD protection for RS-232 bus pins: ±15kV Human-body model (HBM), ±8kV IEC61000-4-2 contact discharge, and ±15kV IEC61000-4-2 air-gap discharge.
- Supports data rates up to 250 kbit/s.
- Includes two drivers and two receivers.
- Low supply current: 8 mA typical.
- Each receiver converts RS-232 inputs to 5V TTL/CMOS levels with a typical threshold of 1.3V and a typical hysteresis of 0.5V.
- Each driver converts TTL/CMOS input levels into TIA/RS-232-F levels.
Applications
- Battery-powered systems.
- Terminals.
- Modems.
- Computers.
- Any system requiring reliable RS-232 serial communication.
Q & A
- What is the MAX232EID used for? The MAX232EID is used to facilitate RS-232 serial communication in various electronic systems.
- What are the key features of the MAX232EID? It includes ESD protection, operates from a single 5V supply, supports up to 250 kbit/s data rate, and has two drivers and two receivers.
- What is the operating temperature range of the MAX232EID? The operating temperature range is -40°C to 85°C.
- How many drivers and receivers does the MAX232EID have? It has two drivers and two receivers.
- What is the input voltage range for the RS-232 inputs? The input voltage range is ±30 V.
- What kind of ESD protection does the MAX232EID offer? It offers ±15 kV HBM, ±8 kV IEC61000-4-2 contact discharge, and ±15 kV IEC61000-4-2 air-gap discharge protection.
- What is the typical supply current of the MAX232EID? The typical supply current is 8 mA.
- In what package types is the MAX232EID available? It is available in SOIC (D) with 16 pins.
- What standards does the MAX232EID comply with? It meets or exceeds TIA/RS-232-F and ITU recommendation V.28 standards.
- Can the MAX232EID be used in battery-powered systems? Yes, it is suitable for battery-powered systems due to its low power consumption.
