Overview
The MAX3232EIDWR, 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, 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 versatile for various applications. The MAX3232EIDWR includes two line drivers and two line receivers, and it is notable for its robust ESD protection and low power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 3 to 5.5 | V |
| Operating Temperature Range | -40 to 85 | °C |
| Data Signaling Rate | Up to 250 | kbit/s |
| Driver Output Slew Rate | Up to 30 | V/μs |
| Supply Current (Typical) | 300 | μA |
| ESD Protection (HBM) | ±15 kV | |
| ESD Protection (IEC61000-4-2, Contact Discharge) | ±8 kV | |
| ESD Protection (IEC61000-4-2, Air-gap Discharge) | ±15 kV | |
| External Capacitors Required | 4 × 0.1 μF |
Key Features
- ESD protection for RS-232 bus pins: ±15 kV (HBM), ±8 kV (IEC61000-4-2, Contact discharge), and ±15 kV (IEC61000-4-2, Air-gap discharge)
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards
- Operates with a 3-V to 5.5-V VCC supply
- Operates up to 250 kbit/s data signaling rate
- Includes two line drivers and two line receivers
- Low supply current: 300 μA (typical)
- Requires four external 0.1 μF capacitors
- Accepts 5-V logic input with a 3.3-V supply
- Pin compatible with alternative high-speed devices (SN65C3232E and SN75C3232E)
Applications
- Industrial PCs
- Wired networking
- Data center and enterprise computing
- Battery-powered systems
- Notebooks
- Palmtop PCs
- Hand-held equipment
Q & A
- What is the operating voltage range of the MAX3232EIDWR? The MAX3232EIDWR operates with a supply voltage (VCC) ranging from 3 V to 5.5 V.
- What is the maximum data signaling rate of the MAX3232EIDWR? The device operates at data signaling rates up to 250 kbit/s.
- How many line drivers and receivers does the MAX3232EIDWR have? The MAX3232EIDWR includes two line drivers and two line receivers.
- What level of ESD protection does the MAX3232EIDWR offer? The device offers ±15 kV (HBM), ±8 kV (IEC61000-4-2, Contact discharge), and ±15 kV (IEC61000-4-2, Air-gap discharge) ESD protection.
- What external components are required for the MAX3232EIDWR to operate? The device requires four external 0.1 μF capacitors.
- Is the MAX3232EIDWR compatible with 5-V logic inputs when powered by a 3.3-V supply? Yes, it accepts 5-V logic inputs with a 3.3-V supply.
- What are some common applications of the MAX3232EIDWR? Common applications include industrial PCs, wired networking, data center and enterprise computing, battery-powered systems, notebooks, palmtop PCs, and hand-held equipment.
- What is the typical supply current of the MAX3232EIDWR? The typical supply current is 300 μA.
- Is the MAX3232EIDWR pin compatible with other high-speed devices? Yes, it is pin compatible with SN65C3232E and SN75C3232E.
- What is the operating temperature range of the MAX3232EIDWR? The operating temperature range is -40°C to 85°C.
