Overview
The MAX3232ECDR, 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 enables operation from a single 3-V to 5.5-V supply, using four small external capacitors. The MAX3232ECDR includes two line drivers and two line receivers, offering robust ESD protection and low power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 3 to 5.5 | V |
| Data Signaling Rate | Up to 250 | kbit/s |
| Driver Output Slew Rate | Up to 30 | V/μs |
| ESD Protection (HBM) | ±15 kV | |
| ESD Protection (IEC61000-4-2, Contact Discharge) | ±8 kV | |
| ESD Protection (IEC61000-4-2, Air-Gap Discharge) | ±15 kV | |
| Supply Current (Typical) | 300 μA | |
| External Capacitors | 4 × 0.1 μF | |
| Operating Temperature Range | 0 to 70 | °C |
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
- Two drivers and two receivers
- Low supply current: 300 μA (typical)
- External capacitors: 4 × 0.1 μF
- Accepts 5-V logic input with a 3.3-V supply
- Pin compatible to alternative high-speed devices (1 Mbit/s): 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 MAX3232ECDR?
The MAX3232ECDR operates with a supply voltage (VCC) ranging from 3 V to 5.5 V.
- What are the data signaling rates supported by the MAX3232ECDR?
The device supports data signaling rates up to 250 kbit/s.
- What kind of ESD protection does the MAX3232ECDR offer?
The MAX3232ECDR offers ESD protection of ±15 kV (HBM), ±8 kV (IEC61000-4-2, Contact discharge), and ±15 kV (IEC61000-4-2, Air-gap discharge).
- How many drivers and receivers does the MAX3232ECDR have?
The device includes two line drivers and two line receivers.
- What is the typical supply current of the MAX3232ECDR?
The typical supply current is 300 μA.
- What external capacitors are required for the MAX3232ECDR?
The device requires four external capacitors, each 0.1 μF.
- Is the MAX3232ECDR pin compatible with other high-speed devices?
Yes, it is pin compatible with alternative high-speed devices such as SN65C3232E and SN75C3232E.
- What are some common applications of the MAX3232ECDR?
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 operating temperature range of the MAX3232ECDR?
The operating temperature range is from 0°C to 70°C.
- Does the MAX3232ECDR meet specific industry standards?
Yes, it meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards.
