Overview
The MAX232ECN is a dual RS-232 driver and receiver integrated circuit produced by Texas Instruments. It is designed to facilitate communication between microcontrollers and serial ports via the RS-232 protocol. This component converts TTL (Transistor-Transistor Logic) level signals to RS-232 levels and vice versa, making it a crucial component in various serial communication applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Protocol | RS-232 | |
| Number of Drivers/Receivers | 2/2 | |
| Duplex Capability | Full | |
| Receiver Hysteresis | 500 mV | |
| Data Rate | Up to 250 kbps | |
| Voltage Supply | 4.5V to 5.5V | V |
| Operating Temperature | 0°C to 70°C | °C |
| Mounting Type | Through Hole | |
| Package/Case | 16-DIP (0.300", 7.62mm) | |
| ESD Protection | ±15kV Human-body model (HBM), ±8kV IEC61000-4-2 Contact discharge, ±15kV IEC61000-4-2 Air-gap discharge |
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, supporting full duplex communication.
- Receivers feature 500 mV hysteresis for noise suppression.
- Compatible with data rates up to 250 kbps.
- ESD protection for RS-232 bus pins: ±15kV HBM, ±8kV IEC61000-4-2 Contact discharge, and ±15kV IEC61000-4-2 Air-gap discharge.
- Low supply current: 8mA typical.
- Through-hole mounting design for stable integration into circuit boards.
Applications
- TIA/EIA-232-F compliant systems.
- Battery-powered systems.
- Terminals and modems.
- Computing equipment and electronic devices requiring serial communication.
- Telecommunications.
Q & A
- What is the MAX232ECN used for?
The MAX232ECN is used to convert TTL (Transistor-Transistor Logic) level signals to RS-232 levels and vice versa, facilitating serial communication between microcontrollers and serial ports.
- What are the key specifications of the MAX232ECN?
The MAX232ECN supports RS-232 protocol, has two drivers and two receivers, operates at up to 250 kbps, and has a voltage supply range of 4.5V to 5.5V. It also features ESD protection and full duplex capability.
- What type of ESD protection does the MAX232ECN offer?
The MAX232ECN offers ±15kV Human-body model (HBM), ±8kV IEC61000-4-2 Contact discharge, and ±15kV IEC61000-4-2 Air-gap discharge ESD protection for RS-232 bus pins.
- What is the typical supply current of the MAX232ECN?
The typical supply current of the MAX232ECN is 8mA.
- What is the operating temperature range of the MAX232ECN?
The operating temperature range of the MAX232ECN is 0°C to 70°C.
- What type of mounting does the MAX232ECN use?
The MAX232ECN uses through-hole mounting.
- Is the MAX232ECN still in active production?
No, the MAX232ECN is classified as obsolete and is no longer in active production.
- What are some common applications of the MAX232ECN?
Common applications include telecommunications, computing equipment, and electronic devices that use serial communication for interfacing.
- Why is the MAX232ECN still useful despite being obsolete?
Despite being obsolete, the MAX232ECN is still useful for repairs or in legacy systems where modern equivalents are not feasible due to design constraints.
- What are the benefits of using the MAX232ECN?
The benefits include reliable performance in converting between TTL and RS-232 signal levels, enhanced noise suppression, and full duplex capability for efficient serial communication.
