Overview
The MAX3232IDW, 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 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, which enables operation from a single 3-V to 5.5-V supply. The MAX3232IDW also includes ±15-kV ESD protection terminal to terminal, enhancing its robustness in various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 3.3 V to 5.5 V | V |
| Operating Temperature Range | -40°C to 85°C | °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) | V |
| Supply Current | 300 μA (Typical) | μA |
| Package Type | SOIC (DW) 16 pins | |
| 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 3-V to 5.5-V VCC supply
- Two line drivers and two line receivers
- Low supply current: 300 μA Typical
- External capacitors: 4 × 0.1 μF
- Accepts 5-V logic input with 3.3-V supply
- Alternative high-speed terminal-compatible devices (1 Mbit/s): SN65C3232 and SN75C3232
- ±15-kV ESD protection terminal to terminal (serial-port connection terminals, including GND)
Applications
- Industrial PCs
- Wired networking
- Data center and enterprise networking
- Battery-powered systems
- PDAs, Notebooks, Laptops, and Palmtop PCs
- Hand-held equipment
Q & A
- What is the operating voltage range of the MAX3232IDW?
The MAX3232IDW operates with a supply voltage (VCC) ranging from 3.3 V to 5.5 V.
- What is the maximum data signaling rate supported by the MAX3232IDW?
The device supports data signaling rates up to 250 kbit/s.
- What kind of ESD protection does the MAX3232IDW offer?
The MAX3232IDW provides ±15-kV ESD protection terminal to terminal using the human-body model (HBM).
- How many line drivers and receivers does the MAX3232IDW have?
The device includes two line drivers and two line receivers.
- What is the typical supply current of the MAX3232IDW?
The typical supply current is 300 μA.
- What external capacitors are required for the MAX3232IDW?
The device requires four external capacitors, each 0.1 μF.
- Can the MAX3232IDW accept 5-V logic input with a 3.3-V supply?
- What are the alternative high-speed terminal-compatible devices for the MAX3232IDW?
The alternative devices are SN65C3232 (–40°C to 85°C) and SN75C3232 (0°C to 70°C), which support up to 1 Mbit/s.
- What are some common applications of the MAX3232IDW?
- What is the operating temperature range of the MAX3232IDW?
The operating temperature range is –40°C to 85°C.
