Overview
The MAX3232ECDW, 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 a dual charge-pump circuit that allows operation from a single 3-V to 5.5-V supply, along with ±15-kV ESD protection terminal to terminal, including GND.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (D), SSOP (DB), SOIC (DW), TSSOP (PW) | - |
| Pins | 16 | - |
| Operating Temperature Range | 0 to 70 | °C |
| Supply Voltage Range | 3-V to 5.5-V | V |
| Data Signaling Rate | Up to 250 kbit/s | - |
| Number of Drivers/Receivers | 2/2 | - |
| Supply Current | 300 µA (Typical) | µA |
| External Capacitors | 4 × 0.1 µF | - |
| ESD Protection | ±15 kV (HBM) | - |
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
- Requires four external 0.1 µF capacitors
- Accepts 5-V logic input with 3.3-V supply
- Alternative high-speed terminal-compatible devices available (1 Mbit/s)
Applications
- Industrial PCs
- Wired networking
- Data center and enterprise networking
- Battery-powered systems
- PDAs, Notebooks, Laptops, Palmtop PCs
- Hand-held equipment
Q & A
- What is the operating voltage range of the MAX3232ECDW?
The MAX3232ECDW operates with a supply voltage range of 3-V to 5.5-V.
- What is the data signaling rate capability of the MAX3232ECDW?
The device can operate at data signaling rates up to 250 kbit/s.
- How many drivers and receivers does the MAX3232ECDW have?
The MAX3232ECDW features two drivers and two receivers.
- What kind of ESD protection does the MAX3232ECDW offer?
The device offers ±15 kV ESD protection using the human-body model (HBM).
- What are the typical supply current requirements of the MAX3232ECDW?
The typical supply current is 300 µA.
- Does the MAX3232ECDW support 5-V logic input with a 3.3-V supply?
Yes, it accepts 5-V logic input with a 3.3-V supply.
- What external components are required for the MAX3232ECDW to operate?
The device requires four external 0.1 µF capacitors.
- What are some common applications of the MAX3232ECDW?
Common applications include industrial PCs, wired networking, data center and enterprise networking, battery-powered systems, and hand-held equipment.
- Are there any alternative high-speed versions of the MAX3232ECDW available?
Yes, alternative high-speed terminal-compatible devices such as the SN65C3232 and SN75C3232 are available for higher speed requirements (1 Mbit/s).
- What is the operating temperature range of the MAX3232ECDW?
The operating temperature range is from 0°C to 70°C.
