Overview
The MAX3232IDBR, 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 a serial-port connector. It consists of two line drivers, two line receivers, and a dual charge-pump circuit, which allows operation from a single 3-V to 5.5-V supply. The MAX3232IDBR meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards, ensuring reliable and high-performance serial communication.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 3.0 to 5.5 | V |
| Operating Temperature Range | -40 to 85 | °C |
| Data Signaling Rate | Up to 250 kbit/s | kbit/s |
| Driver Output Slew Rate | 30 V/μs | V/μs |
| ESD Protection (HBM) | ±15 kV | V |
| Supply Current (Typical) | 300 μA | μA |
| External Capacitors | 4 × 0.1 μF | μF |
| Package Type | SSOP (DB) 16 pins | - |
Key Features
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards.
- Operates with a 3-V to 5.5-V supply voltage.
- Two line drivers and two line receivers.
- Low supply current: 300 μA typical.
- Accepts 5-V logic input with a 3.3-V supply.
- ±15 kV ESD protection terminal to terminal (serial-port connection terminals, including GND).
- External capacitors: 4 × 0.1 μF required.
- Alternative high-speed terminal-compatible devices available (e.g., SN65C3232, SN75C3232).
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 MAX3232IDBR?
The MAX3232IDBR operates with a supply voltage range of 3.0 V to 5.5 V.
- What is the maximum data signaling rate supported by the MAX3232IDBR?
The device supports data signaling rates up to 250 kbit/s.
- What type of ESD protection does the MAX3232IDBR offer?
The MAX3232IDBR offers ±15 kV ESD protection terminal to terminal using the human-body model (HBM).
- How many external capacitors are required for the MAX3232IDBR?
The device requires four external capacitors, each 0.1 μF.
- What are the typical operating temperatures for the MAX3232IDBR?
The device operates over a temperature range of -40°C to 85°C.
- Can the MAX3232IDBR accept 5-V logic input with a 3.3-V supply?
- What are some common applications of the MAX3232IDBR?
- What is the typical supply current of the MAX3232IDBR?
- What is the driver output slew rate of the MAX3232IDBR?
- What package types are available for the MAX3232IDBR?
The device is available in several package types, including SSOP (DB) 16 pins.
