Overview
The MAX232EIDW, produced by Texas Instruments, is a dual driver and receiver integrated circuit designed to facilitate communication between TTL/CMOS logic levels and RS-232 serial communication standards. This device includes a capacitive voltage generator that enables it to generate the necessary RS-232 voltage levels from a single 5V power supply. The MAX232EIDW is an enhanced version of the MAX232, offering improved ESD protection and compliance with various international standards.
Key Specifications
| Parameter | Specification |
|---|---|
| Number of Drivers | 2 |
| Number of Receivers | 2 |
| Transmission Speed | Up to 250 kbit/s |
| Supply Voltage | 4.5V to 5.5V |
| Operating Temperature Range | 0°C to 70°C |
| Input Levels | ±30V |
| Supply Current | 8mA typical |
| ESD Protection | ±15kV Human-body model (HBM), ±8kV IEC61000-4-2 contact discharge, ±15kV IEC61000-4-2 air-gap discharge |
| Package Type | SOIC (DW), 16 pins |
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 for full-duplex communication.
- Low supply current: 8mA typical.
- Enhanced ESD protection: ±15kV Human-body model (HBM), ±8kV IEC61000-4-2 contact discharge, and ±15kV IEC61000-4-2 air-gap discharge.
- Receivers convert RS-232 inputs to 5V TTL/CMOS levels with a typical threshold of 1.3V and hysteresis of 0.5V.
- Drivers convert TTL/CMOS input levels into RS-232 levels.
- Outputs are protected against shorts to ground.
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 MAX232EIDW?
The MAX232EIDW is a dual driver and receiver that converts TTL/CMOS logic levels to RS-232 serial communication standards and vice versa.
- What is the transmission speed of the MAX232EIDW?
The MAX232EIDW can operate up to 250 kbit/s.
- What is the supply voltage range for the MAX232EIDW?
The supply voltage range is 4.5V to 5.5V.
- What level of ESD protection does the MAX232EIDW offer?
The MAX232EIDW offers ±15kV Human-body model (HBM), ±8kV IEC61000-4-2 contact discharge, and ±15kV IEC61000-4-2 air-gap discharge protection.
- What types of applications is the MAX232EIDW suitable for?
The MAX232EIDW is suitable for TIA/EIA-232-F compliant systems, battery-powered systems, terminals, modems, and computers.
- How many drivers and receivers does the MAX232EIDW have?
The MAX232EIDW has two drivers and two receivers.
- What is the typical supply current of the MAX232EIDW?
The typical supply current is 8mA.
- What is the operating temperature range of the MAX232EIDW?
The operating temperature range is 0°C to 70°C.
- What package types are available for the MAX232EIDW?
The MAX232EIDW is available in SOIC (DW) packages with 16 pins.
- How do the receivers in the MAX232EIDW handle input levels?
The receivers convert RS-232 inputs to 5V TTL/CMOS levels with a typical threshold of 1.3V and hysteresis of 0.5V, and can accept ±30V inputs.
