Overview
The MAX3232EIDB, 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 the serial-port connector, adhering to the TIA/EIA-232-F and ITU V.28 standards. It features two line drivers and two line receivers, along with a dual charge-pump circuit that enables operation from a single 3-V to 5.5-V supply. The MAX3232EIDB also includes ±15-kV ESD protection on all serial-port connection pins, including GND, ensuring robust protection against electrostatic discharge.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 3 V to 5.5 V |
| 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 |
| Package Types | SOIC (D), SSOP (DB), SOIC (DW), TSSOP (PW) |
| Number of Drivers/Receivers | 2 Drivers, 2 Receivers |
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
- Accepts 5-V logic input with 3.3-V supply
- ±15-kV ESD protection on all serial-port connection pins, including GND
- External capacitors: 4 × 0.1 μF
- Alternative high-speed terminal-compatible devices available (e.g., SN65C3232, SN75C3232)
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 supply voltage range for the MAX3232EIDB?
The supply voltage range is 3 V to 5.5 V.
- What is the maximum data signaling rate of the MAX3232EIDB?
The maximum data signaling rate is up to 250 kbit/s.
- What level of ESD protection does the MAX3232EIDB offer?
The device offers ±15 kV ESD protection using the human-body model (HBM).
- How many drivers and receivers does the MAX3232EIDB have?
The device has two line drivers and two line receivers.
- What is the typical supply current of the MAX3232EIDB?
The typical supply current is 300 μA.
- What types of packages are available for the MAX3232EIDB?
The device is available in SOIC (D), SSOP (DB), SOIC (DW), and TSSOP (PW) packages.
- Does the MAX3232EIDB 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 are the external capacitor requirements for the MAX3232EIDB?
The device requires 4 × 0.1 μF external capacitors.
- Are there any alternative high-speed devices compatible with the MAX3232EIDB?
Yes, alternatives include the SN65C3232 and SN75C3232.
- What are some common applications for the MAX3232EIDB?
Common applications include industrial PCs, wired networking, data center and enterprise networking, battery-powered systems, and hand-held equipment.
