Overview
The MAX3232CDWG4, produced by Texas Instruments, is a multichannel RS-232 line driver/receiver device. It consists of two line drivers, two line receivers, and a dual charge-pump circuit, providing the necessary electrical interface between an asynchronous communication controller and a serial-port connector. The device meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards. It operates from a single 3-V to 5.5-V supply and includes ±15-kV ESD protection terminal to terminal, ensuring robust performance in various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 3 to 5.5 | V |
| Operating Temperature Range | 0 to 70 (MAX3232C), -40 to 85 (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) | kV |
| Package Type | SOIC (DW), SSOP, TSSOP | - |
| Number of Pins | 16 | - |
| External Capacitors | 4 × 0.1 μF | μF |
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.
- Includes a dual charge-pump circuit requiring four small external capacitors.
- Provides ±15-kV ESD protection terminal to terminal (serial-port connection terminals, including GND).
- Supports data signaling rates up to 250 kbit/s and a maximum of 30-V/μs driver output slew rate.
- Accepts 5-V logic input with a 3.3-V supply.
- Low supply current: 300 μA typical.
- Alternative high-speed terminal-compatible devices available (SN65C3232 and SN75C3232).
Applications
- Battery-powered systems.
- PDAs (Personal Digital Assistants).
- Notebooks and laptops.
- Palmtop PCs.
- Hand-held equipment.
Q & A
- What is the MAX3232CDWG4 used for?
The MAX3232CDWG4 is used to provide the electrical interface between an asynchronous communication controller and a serial-port connector, adhering to RS-232 standards.
- What is the operating voltage range of the MAX3232CDWG4?
The device operates from a single 3-V to 5.5-V supply.
- What kind of ESD protection does the MAX3232CDWG4 offer?
The device offers ±15-kV ESD protection terminal to terminal (serial-port connection terminals, including GND) using the Human-Body Model (HBM).
- What is the maximum data signaling rate supported by the MAX3232CDWG4?
The device supports data signaling rates up to 250 kbit/s.
- What type of packages is the MAX3232 available in?
The MAX3232 is available in SOIC (DW), SSOP, and TSSOP packages.
- How many external capacitors are required for the MAX3232CDWG4?
The device requires four small external capacitors, each 0.1 μF.
- Can the MAX3232CDWG4 accept 5-V logic input with a 3.3-V supply?
- What is the typical supply current of the MAX3232CDWG4?
The typical supply current is 300 μA.
- Are there any alternative high-speed devices compatible with the MAX3232CDWG4?
- What are some common applications of the MAX3232CDWG4?
