Overview
The MAX232DWG4 is a dual driver/receiver integrated circuit produced by Texas Instruments. It is designed to convert TTL/CMOS input levels to TIA/EIA-232-F levels and vice versa, making it an essential component for serial communication interfaces. The device operates from a single 5-V power supply and includes a capacitive voltage generator that requires four 1-µF external capacitors to generate the necessary voltage levels for RS-232 communication.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Texas Instruments | |
| Package | 16-SOIC (0.154", 3.90mm Width) | |
| Type | Transceiver | |
| Protocol | RS232 | |
| Number of Drivers/Receivers | 2/2 | |
| Duplex | Full | |
| Receiver Hysteresis | 500mV | |
| Data Rate | 120Kbps | |
| Voltage - Supply | 4.5 V ~ 5.5 V | |
| Operating Temperature | 0°C ~ 70°C | |
| Mounting Type | Surface Mount | |
| ESD Protection | Exceeds JESD 22 - 2000-V Human-Body Model | |
| Supply Current | 8 mA (Typical) |
Key Features
- Meets or exceeds TIA/EIA-232-F and ITU Recommendation V.28 standards.
- Operates from a single 5-V power supply with 1-µF charge-pump capacitors.
- Includes two drivers and two receivers.
- Accepts ±30-V input levels.
- Low supply current of 8 mA typical.
- ESD protection exceeds JESD 22 - 2000-V Human-Body Model.
- Outputs are protected against shorts to ground.
- Internal pull-up resistors on TIN inputs ensure a high input when the line is high impedance.
Applications
- TIA/EIA-232-F interfaces.
- Battery-powered systems.
- Terminals and modems.
- Computers and other serial communication devices.
Q & A
- What is the MAX232DWG4 used for?
The MAX232DWG4 is used to convert TTL/CMOS input levels to TIA/EIA-232-F levels and vice versa, facilitating serial communication.
- What is the operating voltage range of the MAX232DWG4?
The operating voltage range is 4.5 V to 5.5 V.
- How many drivers and receivers does the MAX232DWG4 have?
The MAX232DWG4 has two drivers and two receivers.
- What is the maximum data rate supported by the MAX232DWG4?
The maximum data rate is 120 Kbps.
- What type of package does the MAX232DWG4 come in?
The MAX232DWG4 comes in a 16-SOIC package.
- Does the MAX232DWG4 have ESD protection?
- What is the typical supply current of the MAX232DWG4?
The typical supply current is 8 mA.
- Can the MAX232DWG4 operate in high-temperature environments?
- What kind of capacitors are required for the MAX232DWG4?
Four 1-µF external capacitors are required for the charge pump.
- Is the MAX232DWG4 RoHS compliant?
