Overview
The MAX3232IDRE4, produced by Texas Instruments, is a 3-V to 5.5-V multichannel RS-232 line driver and receiver. This device is designed to provide an electrical interface between an asynchronous communication controller and the serial-port connector, adhering to the TIA/EIA-232-F standards. It features a dual charge-pump circuit that allows operation from a single supply voltage, making it suitable for a variety of battery-powered and low-voltage systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3.0 | - | 5.5 | V |
| Operating Temperature (TA) | -40 | - | 85 | °C |
| Data Signaling Rate | - | - | 250 | kbit/s |
| Driver Output Slew Rate | - | - | 30 | V/μs |
| ESD Protection | - | - | ±15 kV | - |
| Number of Drivers | - | - | 2 | - |
| Number of Receivers | - | - | 2 | - |
| Package Type | - | - | SOIC-16 | - |
Key Features
- Meets or exceeds the requirements of TIA/EIA-232-F.
- Operates from a single 3-V to 5.5-V supply using a dual charge-pump circuit.
- Requires only four small external capacitors (0.1 μF or 0.047 μF and 0.33 μF depending on VCC).
- Provides ±15 kV ESD protection on serial-port connection terminals, including GND.
- Supports data signaling rates up to 250 kbit/s.
- Maximum driver output slew rate of 30 V/μs.
- Outputs are protected against shorts to ground.
- Low-dropout transmitter output stage for true RS-232 performance.
Applications
- Battery-powered systems.
- PDAs (Personal Digital Assistants).
- Notebooks and laptops.
- Palmtop PCs and hand-held equipment.
Q & A
- What is the operating voltage range of the MAX3232IDRE4?
The MAX3232IDRE4 operates from a single 3-V to 5.5-V supply voltage.
- How many drivers and receivers does the MAX3232IDRE4 have?
The device has two drivers and two receivers.
- What is the maximum data signaling rate supported by the MAX3232IDRE4?
The device supports data signaling rates up to 250 kbit/s.
- What kind of ESD protection does the MAX3232IDRE4 offer?
The device provides ±15 kV ESD protection on serial-port connection terminals, including GND.
- What type of package does the MAX3232IDRE4 come in?
The device is packaged in a 16-pin SOIC (Small Outline Integrated Circuit).
- What are the typical applications for the MAX3232IDRE4?
It is used in battery-powered systems, PDAs, notebooks, laptops, palmtop PCs, and hand-held equipment.
- How does the MAX3232IDRE4 handle output shorts to ground?
The outputs are protected against shorts to ground.
- What is the maximum driver output slew rate of the MAX3232IDRE4?
The maximum driver output slew rate is 30 V/μs.
- Does the MAX3232IDRE4 require external capacitors for operation?
Yes, it requires four small external capacitors (0.1 μF or 0.047 μF and 0.33 μF depending on VCC).
- Is the MAX3232IDRE4 compliant with RoHS standards?
Yes, the MAX3232IDRE4 is RoHS compliant.
