Overview
The MAX232IDR, produced by Texas Instruments, is a dual driver/receiver integrated circuit designed to facilitate communication between TTL/CMOS logic levels and RS-232 serial interface levels. This device is particularly useful in applications requiring the conversion of 5V TTL/CMOS signals to RS-232 compatible voltage levels. The MAX232IDR includes a capacitive voltage generator that enables it to operate from a single 5V power supply, making it highly efficient and versatile for various electronic systems.
Key Specifications
| Specification | Value |
|---|---|
| Operating Voltage | 5V |
| Operating Temperature Range | -40°C to 85°C |
| Data Rate | Up to 120 kbit/s |
| Number of Drivers/Receivers | Two drivers, two receivers |
| Input Levels | ±30V |
| Supply Current | 8 mA typical |
| ESD Protection | Exceeds JESD 22 – 2000V Human-body model (A114-A) |
| Package Type | SOIC (D) with 16 pins |
Key Features
- Meets or exceeds TIA/EIA-232-F and ITU recommendation V.28
- Operates from a single 5V power supply with 1µF charge-pump capacitors
- Supports data rates up to 120 kbit/s
- Includes two drivers and two receivers
- Accepts ±30V input levels
- Low supply current: 8 mA typical
- ESD protection exceeds JESD 22 – 2000V Human-body model (A114-A)
- Upgrade with improved ESD (15kV HBM) and 0.1µF charge-pump capacitors available with the MAX202 device
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 MAX232IDR? The MAX232IDR is a dual driver/receiver that converts TTL/CMOS logic levels to RS-232 serial interface levels and vice versa.
- What is the operating voltage of the MAX232IDR? The MAX232IDR operates from a single 5V power supply.
- What is the maximum data rate supported by the MAX232IDR? The MAX232IDR supports data rates up to 120 kbit/s.
- How many drivers and receivers does the MAX232IDR have? The MAX232IDR includes two drivers and two receivers.
- What is the input voltage range of the MAX232IDR? The MAX232IDR can accept input levels of ±30V.
- What is the typical supply current of the MAX232IDR? The typical supply current is 8 mA.
- Does the MAX232IDR have ESD protection? Yes, the MAX232IDR has ESD protection that exceeds JESD 22 – 2000V Human-body model (A114-A).
- In what package is the MAX232IDR available? The MAX232IDR is available in a SOIC (D) package with 16 pins.
- What are some common applications of the MAX232IDR? Common applications include TIA/EIA-232-F compliant systems, battery-powered systems, terminals, modems, and computers.
- Can the MAX232IDR be used in safety-critical applications? Users should carefully evaluate the suitability of the MAX232IDR for safety-critical applications, as indicated in the datasheet.
