Overview
The MAX232DWRE4, produced by Texas Instruments, is a dual driver/receiver integrated circuit designed to facilitate communication between TTL/CMOS logic levels and RS-232 serial communication standards. This device is part of the MAX232 family and is specifically packaged in a 16-pin SOIC (Small Outline Integrated Circuit) package. It includes a capacitive voltage generator that enables the conversion of a single 5V power supply into the necessary voltage levels for RS-232 communication.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 4.5 to 5.5 | V |
| Operating Temperature Range | 0 to 70 | °C |
| Number of Drivers/Receivers | 2/2 | |
| Data Rate | Up to 120 kbit/s | |
| Input Levels | ±30 V | |
| Supply Current | 8 mA (typical) | |
| Receiver Hysteresis | 500 mV | |
| Package Type | 16-SOIC | |
| ESD Protection | ±2000 V Human-body model (HBM) |
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.
- 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 (HBM).
- 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 MAX232DWRE4 used for?
The MAX232DWRE4 is used to convert TTL/CMOS logic levels to RS-232 serial communication standards and vice versa.
- What is the operating voltage range of the MAX232DWRE4?
The operating voltage range is 4.5V to 5.5V.
- How many drivers and receivers does the MAX232DWRE4 have?
The MAX232DWRE4 has two drivers and two receivers.
- What is the maximum data rate supported by the MAX232DWRE4?
The maximum data rate supported is up to 120 kbit/s.
- What kind of ESD protection does the MAX232DWRE4 offer?
The MAX232DWRE4 offers ESD protection exceeding JESD 22 – 2000V Human-body model (HBM).
- What type of package does the MAX232DWRE4 come in?
The MAX232DWRE4 comes in a 16-pin SOIC package.
- What is the typical supply current of the MAX232DWRE4?
The typical supply current is 8 mA.
- Can the MAX232DWRE4 operate in battery-powered systems?
- What are some common applications of the MAX232DWRE4?
- How does the MAX232DWRE4 generate the necessary RS-232 voltage levels?
The MAX232DWRE4 uses a capacitive voltage generator with four 1µF external capacitors to generate the necessary RS-232 voltage levels from a single 5V supply.
