Overview
The MAX3232ECDWR, produced by Texas Instruments, is a multichannel RS-232 line driver and receiver designed to provide a reliable and efficient interface between asynchronous communication controllers and serial-port connectors. This device meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards, ensuring compliance with industry specifications. It features a dual charge-pump circuit that allows operation from a single 3-V to 5.5-V supply, making it versatile for various applications. The MAX3232ECDWR includes two line drivers and two line receivers, and it is protected by ±15-kV ESD protection terminal to terminal, including GND, enhancing its durability and reliability.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | TSSOP (PW), SOIC (D), SSOP (DB), SOIC (DW) | 16 pins |
| Operating Temperature Range | 0°C to 70°C | |
| Supply Voltage (VCC) | 3.0V to 5.5V | |
| 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 |
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: Typical 300 μA
- 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
- Proprietary low-dropout transmitter output stage for true RS-232 performance
- ±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 MAX3232ECDWR?
The MAX3232ECDWR operates with a supply voltage (VCC) range of 3.0V to 5.5V.
- What is the maximum data signaling rate supported by the MAX3232ECDWR?
The device supports data signaling rates up to 250 kbit/s.
- How many line drivers and receivers does the MAX3232ECDWR have?
The MAX3232ECDWR includes two line drivers and two line receivers.
- What type of ESD protection does the MAX3232ECDWR offer?
The device offers ±15-kV ESD protection terminal to terminal (serial-port connection terminals, including GND) using the human-body model (HBM).
- What are the external capacitor requirements for the MAX3232ECDWR?
The device requires four small external capacitors, each 0.1 μF.
- Can the MAX3232ECDWR accept 5-V logic input with a 3.3-V supply?
- What are some alternative high-speed terminal-compatible devices for the MAX3232ECDWR?
Alternative devices include the SN65C3232 (–40°C to 85°C) and SN75C3232 (0°C to 70°C) for high-speed applications.
- What is the typical supply current of the MAX3232ECDWR?
The typical supply current is 300 μA.
- What are some common applications of the MAX3232ECDWR?
Common applications include industrial PCs, wired networking, data center and enterprise networking, battery-powered systems, PDAs, notebooks, laptops, palmtop PCs, and hand-held equipment.
- What industry standards does the MAX3232ECDWR comply with?
The device meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards.
