Overview
The MAX3232CDWR, 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 supply voltage, making it versatile for various applications. The MAX3232CDWR includes two line drivers and two line receivers, along with robust ESD protection exceeding ±15 kV using the human-body model (HBM).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 3.3 V to 5.5 V | V |
| Operating Temperature Range | 0°C to 70°C (MAX3232C), -40°C to 85°C (MAX3232I) | °C |
| Data Signaling Rate | Up to 250 kbit/s | kbit/s |
| Driver Output Slew Rate | Up to 30 V/μs | V/μs |
| Supply Current (ICC) | 0.3 mA to 1 mA (typical) | mA |
| ESD Protection | ±15 kV (HBM) | V |
| Package Types | SOIC (D), SSOP (DB), SOIC (DW), TSSOP (PW) | |
| External Capacitors | 4 × 0.1 μF | 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: 300 μA typical
- Accepts 5-V logic input with 3.3-V supply
- Robust ESD protection exceeding ±15 kV using the human-body model (HBM)
- Alternative high-speed terminal-compatible devices available (SN65C3232 and SN75C3232)
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 MAX3232CDWR?
The MAX3232CDWR operates with a supply voltage (VCC) ranging from 3 V to 5.5 V.
- What are the data signaling rates supported by the MAX3232CDWR?
The device supports data signaling rates up to 250 kbit/s.
- How many line drivers and receivers does the MAX3232CDWR have?
The device includes two line drivers and two line receivers.
- What is the typical supply current of the MAX3232CDWR?
The typical supply current is 300 μA.
- Does the MAX3232CDWR support 5-V logic input with a 3.3-V supply?
- What level of ESD protection does the MAX3232CDWR offer?
The device offers ESD protection exceeding ±15 kV using the human-body model (HBM).
- What are the alternative high-speed terminal-compatible devices for the MAX3232CDWR?
The alternative devices are SN65C3232 (–40°C to 85°C) and SN75C3232 (0°C to 70°C).
- What types of packages are available for the MAX3232CDWR?
The device is available in SOIC (D), SSOP (DB), SOIC (DW), and TSSOP (PW) packages.
- What external capacitors are required for the MAX3232CDWR?
The device requires four external capacitors, each 0.1 μF.
- In what applications is the MAX3232CDWR commonly used?
The device is commonly used in industrial PCs, wired networking, data centers, battery-powered systems, PDAs, notebooks, laptops, palmtop PCs, and hand-held equipment.
