Overview
The MAX3232MDBREP is a 3-V to 5.5-V multichannel RS-232 line driver/receiver produced by Texas Instruments. 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 features two line drivers, two line receivers, and a dual charge-pump circuit, enabling operation from a single 3-V to 5.5-V supply. The MAX3232MDBREP is particularly suited for applications requiring high ESD protection, with ±15-kV ESD protection on serial-port connection pins, including GND.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply Voltage Range | -0.3 | 3.3 / 5 | 6 | V |
| Operating Free-Air Temperature | -55 | - | 125 | °C |
| Supply Current (No Load) | 0.3 | 2 | - | mA |
| Driver Output Voltage Range | -13.2 | - | 13.2 | V |
| Maximum Data Rate | 150 | 250 | - | kbit/s |
| Driver Output Slew Rate | 4 | - | 30 | V/μs |
| ESD Protection | ±15 kV | - | - | - |
Key Features
- Operates with 3-V to 5.5-V VCC supply.
- Two drivers and two receivers.
- Low supply current: 300 μA typical.
- External capacitors: 4 × 0.1 μF.
- Accepts 5-V logic input with 3.3-V supply.
- ±15-kV ESD protection on serial-port connection pins, including GND.
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards.
- Operates up to 250 kbit/s data signaling rates.
- Alternative high-speed pin-compatible devices available (e.g., SN65C3232, SN75C3232).
Applications
- Battery-powered systems, PDAs, notebooks, laptops, palmtop PCs, and hand-held equipment.
- Industrial PCs.
- Wired networking.
- Data center and enterprise networking.
- Defense, aerospace, and medical applications.
Q & A
- What is the operating voltage range of the MAX3232MDBREP?
The MAX3232MDBREP operates with a supply voltage range of 3-V to 5.5-V.
- How many drivers and receivers does the MAX3232MDBREP have?
The device has two line drivers and two line receivers.
- What is the maximum data rate supported by the MAX3232MDBREP?
The device supports data signaling rates up to 250 kbit/s.
- What kind of ESD protection does the MAX3232MDBREP offer?
The device offers ±15-kV ESD protection on serial-port connection pins, including GND.
- What are the typical applications of the MAX3232MDBREP?
It is used in battery-powered systems, industrial PCs, wired networking, data center and enterprise networking, and defense, aerospace, and medical applications.
- Does the MAX3232MDBREP require external capacitors?
Yes, it requires four small external capacitors (4 × 0.1 μF).
- Can the MAX3232MDBREP accept 5-V logic input with a 3.3-V supply?
Yes, it can accept 5-V logic input with a 3.3-V supply.
- What are the alternative high-speed pin-compatible devices for the MAX3232MDBREP?
Alternative devices include the SN65C3232 and SN75C3232.
- What is the typical supply current of the MAX3232MDBREP?
The typical supply current is 300 μA.
- What is the operating temperature range of the MAX3232MDBREP?
The device operates over a temperature range of -55°C to 125°C.
