Overview
The MAX3232IDR from Texas Instruments is a 3-V to 5.5-V multichannel RS-232 line driver and receiver IC. This device is designed to provide a reliable electrical interface between an asynchronous communication controller and a serial-port connector, adhering to the TIA/EIA-232-F 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 power supply. The MAX3232IDR is particularly suited for battery-powered systems and other applications requiring low power consumption and high ESD protection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 3 V to 5.5 V | V |
| Operating Free-Air Temperature | 0°C to 70°C (MAX3232C), -40°C to 85°C (MAX3232I) | °C |
| Data Signaling Rate | Up to 250 kbit/s | kbit/s |
| Driver Output Slew Rate | Up to 30 V/μs | V/μs |
| ESD Protection | ±15 kV (HBM), ±8 kV (IEC61000-4-2, Contact discharge), ±15 kV (IEC61000-4-2, Air-gap discharge) | kV |
| Package Types | SOIC-16, SSOP-16, TSSOP-16, TQFN 24, VSSOP-20 |
Key Features
- Meets or exceeds the requirements of TIA/EIA-232-F standards.
- Two line drivers and two line receivers with dual charge-pump circuit.
- Operates from a single 3-V to 5.5-V power supply.
- High ESD protection: ±15 kV (HBM), ±8 kV (IEC61000-4-2, Contact discharge), and ±15 kV (IEC61000-4-2, Air-gap discharge).
- Data signaling rates up to 250 kbit/s and a maximum driver output slew rate of 30 V/μs.
- Outputs protected against shorts to ground.
- Remote wake-up from Sleep or Deep Sleep mode with a low current draw of 3 µA.
Applications
- Battery-powered systems.
- PDAs, notebooks, laptops, and palmtop PCs.
- Hand-held equipment.
- Any application requiring true RS-232 signaling and low power consumption.
Q & A
- What is the operating voltage range of the MAX3232IDR?
The MAX3232IDR operates from a single 3-V to 5.5-V power supply.
- What are the data signaling rates supported by the MAX3232IDR?
The device supports data signaling rates up to 250 kbit/s.
- What level of ESD protection does the MAX3232IDR offer?
The MAX3232IDR offers ±15 kV (HBM), ±8 kV (IEC61000-4-2, Contact discharge), and ±15 kV (IEC61000-4-2, Air-gap discharge) ESD protection.
- What are the typical applications for the MAX3232IDR?
Typical applications include battery-powered systems, PDAs, notebooks, laptops, palmtop PCs, and hand-held equipment.
- What is the maximum driver output slew rate of the MAX3232IDR?
The maximum driver output slew rate is up to 30 V/μs.
- Does the MAX3232IDR support remote wake-up from sleep modes?
- What are the available package types for the MAX3232IDR?
The device is available in SOIC-16, SSOP-16, TSSOP-16, TQFN 24, and VSSOP-20 packages.
- Is the MAX3232IDR compliant with industry standards?
- What is the operating temperature range for the MAX3232IDR?
The operating temperature range is 0°C to 70°C (MAX3232C) and -40°C to 85°C (MAX3232I).
- Is the MAX3232IDR still in production?
The MAX3232IDR is scheduled for obsolescence and will be discontinued by the manufacturer.
