Overview
The MAX3232IDWR, produced by Texas Instruments, is a 3-V to 5.5-V dual-channel 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. It consists of two line drivers, two line receivers, and a dual charge-pump circuit with ±15-kV ESD protection terminal to terminal, including GND. The MAX3232IDWR meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards, making it a reliable choice for various applications requiring serial communication.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage (VCC) | 3 V to 5.5 V |
| Data Signaling Rate | Up to 250 kbit/s |
| Driver Output Slew Rate | Maximum of 30-V/μs |
| ESD Protection | ±15 kV using human-body model (HBM) |
| Supply Current | Typical 300 μA |
| External Capacitors | 4 × 0.1 μF |
| Number of Drivers | 2 |
| Number of Receivers | 2 |
| Package Type | SOIC (DW) 16 pins |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- RS-232 Bus-terminal ESD protection exceeds ±15 kV using human-body model (HBM)
- 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
- Operates up to 250 kbit/s data signaling rate
- 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
- Alternative high-speed terminal-compatible devices (1 Mbit/s): SN65C3232 and SN75C3232
Applications
- Industrial PCs
- Wired networking
- Data center and enterprise networking
- Battery-powered systems
- PDAs
- Notebooks and laptops
- Palmtop PCs
- Hand-held equipment
Q & A
- What is the supply voltage range for the MAX3232IDWR?
The supply voltage range for the MAX3232IDWR is 3 V to 5.5 V. - What is the maximum data signaling rate of the MAX3232IDWR?
The maximum data signaling rate is up to 250 kbit/s. - How much ESD protection does the MAX3232IDWR offer?
The MAX3232IDWR offers ±15 kV ESD protection using the human-body model (HBM). - What is the typical supply current of the MAX3232IDWR?
The typical supply current is 300 μA. - How many external capacitors are required for the MAX3232IDWR?
Four external capacitors of 0.1 μF each are required. - Can the MAX3232IDWR 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 terminal-compatible devices for the MAX3232IDWR?
The alternative devices are SN65C3232 (–40°C to 85°C) and SN75C3232 (0°C to 70°C). - What is the package type and pin count of the MAX3232IDWR?
The package type is SOIC (DW) with 16 pins. - What is the operating temperature range of the MAX3232IDWR?
The operating temperature range is -40°C to 85°C. - What standards does the MAX3232IDWR meet or exceed?
The MAX3232IDWR meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards.
