Overview
The MAX3232ECDBR, produced by Texas Instruments, is a multichannel RS-232 line driver/receiver integrated circuit. This device is designed to provide the electrical interface between an asynchronous communication controller and the serial-port connector, adhering to the TIA/EIA-232-F and ITU V.28 standards. It operates with a single 3-V to 5.5-V supply voltage and includes a dual charge-pump circuit that generates the necessary ±5.5V supplies for RS-232 operation. The MAX3232ECDBR features two line drivers and two line receivers, making it suitable for various serial communication applications.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | SOP-16-150mil | - |
| Operating Temperature Range | °C | 0 to 70 |
| Supply Voltage (VCC) | V | 3.0 to 5.5 |
| Maximum Data Rate | kbit/s | 250 |
| ESD Protection | kV | ±15 |
| Supply Current | mA | 0.3 (typical) |
| External Capacitors | µF | 4 × 0.1 |
| Receiver Propagation Delay | µs | 0.15 (typical) |
| Transmitter Output Slew Rate | V/µs | 30 (maximum) |
Key Features
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards.
- Operates with a single 3-V to 5.5-V supply voltage.
- Includes a dual charge-pump circuit for generating ±5.5V supplies.
- Two line drivers and two line receivers.
- Low supply current: 300 µA typical.
- Accepts 5-V logic input with a 3.3-V supply.
- ±15-kV ESD protection on serial-port connection terminals, including GND.
- Alternative high-speed terminal-compatible devices available (e.g., SN65C3232, SN75C3232).
Applications
- Serial communication interfaces in industrial and commercial equipment.
- Point-of-sale terminals and other retail systems.
- Medical devices requiring reliable serial communication.
- Automotive systems with serial communication needs.
- Embedded systems and microcontroller-based projects.
Q & A
- What is the operating temperature range of the MAX3232ECDBR?
The operating temperature range is 0°C to 70°C.
- What is the maximum data rate supported by the MAX3232ECDBR?
The maximum data rate supported is up to 250 kbit/s.
- How many external capacitors are required for the MAX3232ECDBR?
Four external capacitors of 0.1 µF each are required.
- What level of ESD protection does the MAX3232ECDBR offer?
The device offers ±15-kV ESD protection on serial-port connection terminals, including GND.
- Can the MAX3232ECDBR operate with a 3.3-V supply and 5-V logic input?
- What are the typical supply current and shutdown supply current for the MAX3232ECDBR?
The typical supply current is 0.3 mA, and the shutdown supply current is 1.0 µA.
- Is the MAX3232ECDBR compatible with industry-standard devices?
- What is the receiver propagation delay for the MAX3232ECDBR?
The receiver propagation delay is typically 0.15 µs.
- What is the maximum transmitter output slew rate for the MAX3232ECDBR?
The maximum transmitter output slew rate is 30 V/µs.
- What are some common applications of the MAX3232ECDBR?
