Overview
The MAX3232CPWR, 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 an electrical interface between an asynchronous communication controller and a serial-port connector, adhering to the TIA/EIA-232-F and ITU V.28 standards. It features a dual charge-pump circuit that allows operation from a single 3-V to 5.5-V supply, making it suitable for a wide range of applications, including battery-powered systems, PDAs, notebooks, laptops, and hand-held equipment.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Operating Temperature Range | 0 to 70 | °C |
| Supply Voltage (VCC) | 3.0 to 5.5 | V |
| Supply Current (No Load) | 0.3 to 1.0 | mA |
| Shutdown Supply Current | 1.0 to 10 | µA |
| Data Signaling Rate | Up to 250 | kbit/s |
| Driver Output Slew Rate | Up to 30 | V/µs |
| ESD Protection | ±15 kV (HBM) | |
| Package Type | TSSOP (PW) 16 pins | |
| External Capacitors | 4 × 0.1 µF |
Key Features
- RS-232 bus-terminal ESD protection exceeds ±15 kV using the human-body model (HBM).
- 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.
- Supports data signaling rates up to 250 kbit/s.
- Includes two line drivers and two line receivers.
- Low supply current: 300 µA typical.
- Accepts 5-V logic input with a 3.3-V supply).
- Alternative high-speed terminal-compatible devices available (e.g., SN65C3232 and SN75C3232)).
Applications
- Battery-powered systems
- PDAs (Personal Digital Assistants)
- Notebooks and laptops
- Palmtop PCs and hand-held equipment
- Any device requiring RS-232 communication interface
Q & A
- What is the operating temperature range of the MAX3232CPWR?
The operating temperature range is 0°C to 70°C).
- What is the supply voltage range for the MAX3232CPWR?
The supply voltage range is 3.0 V to 5.5 V).
- How many line drivers and receivers does the MAX3232CPWR have?
The device includes two line drivers and two line receivers).
- What is the maximum data signaling rate supported by the MAX3232CPWR?
The device supports data signaling rates up to 250 kbit/s).
- What type of ESD protection does the MAX3232CPWR offer?
The device offers ±15 kV ESD protection using the human-body model (HBM)).
- What external components are required for the MAX3232CPWR to operate?
The device requires four small external capacitors (0.1 µF each)).
- Is the MAX3232CPWR compatible with different logic levels?
Yes, it accepts 5-V logic input with a 3.3-V supply).
- What are some common applications for the MAX3232CPWR?
Common applications include battery-powered systems, PDAs, notebooks, laptops, and hand-held equipment).
- What is the typical supply current of the MAX3232CPWR?
The typical supply current is 300 µA).
- Are there any alternative devices for high-speed applications?
Yes, alternative high-speed terminal-compatible devices such as SN65C3232 and SN75C3232 are available).
