Overview
The MAX3221EIPWG4, produced by Texas Instruments, is a single-channel RS-232 line driver and receiver designed to operate from a single 3-V to 5.5-V supply. This device meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards, providing an electrical interface between an asynchronous communication controller and the serial-port connector. It features a dual charge-pump circuit and requires four small external capacitors (0.1 µF each) for operation. The MAX3221EIPWG4 is capable of data signaling rates up to 250 kbps and offers high ESD protection for RS-232 pins, exceeding ±15 kV using the Human Body Model (HBM).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 3.0 to 5.5 | V |
| Operating Temperature Range | -40 to 85 | °C |
| Data Signaling Rate | Up to 250 kbps | |
| Driver Output Slew Rate | Up to 30 V/µs | |
| ESD Protection (HBM) | ±15 kV | |
| ESD Protection (IEC 61000-4-2) | ±8 kV (Contact), ±15 kV (Air-gap) | |
| Standby Current | 1 µA typical | |
| Package Type | TSSOP (PW), 16 pins | |
| Package Size | 5mm × 6.4mm |
Key Features
- RS-232 bus-pin ESD protection exceeds ±15 kV using the Human Body Model (HBM) and ±8 kV (IEC 61000-4-2, Contact discharge), ±15 kV (IEC 61000-4-2, Air-gap discharge).
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards.
- Operates with a single 3-V to 5.5-V VCC supply.
- Operates up to 250 kbps data signaling rate.
- One driver and one receiver with dedicated enable pin.
- Low standby current: 1 µA typical.
- Accepts 5-V logic input with 3.3-V supply.
- Automatic power-down feature automatically disables drivers for power savings.
- Alternative high-speed pin-compatible device (1 Mbps) - SNx5C3221.
Applications
- Industrial PCs
- Wired networking
- Data center and enterprise computing
- Battery-powered systems
- PDAs
- Notebooks
- Laptops
- Palmtop PCs
- Hand-held equipment
Q & A
- What is the operating voltage range of the MAX3221EIPWG4? The MAX3221EIPWG4 operates with a single 3-V to 5.5-V VCC supply.
- What is the maximum data signaling rate of the MAX3221EIPWG4? The device operates up to 250 kbps.
- What kind of ESD protection does the MAX3221EIPWG4 offer? The device offers ESD protection exceeding ±15 kV using the Human Body Model (HBM) and ±8 kV (IEC 61000-4-2, Contact discharge), ±15 kV (IEC 61000-4-2, Air-gap discharge).
- How many drivers and receivers does the MAX3221EIPWG4 have? The device has one driver and one receiver with a dedicated enable pin.
- What is the typical standby current of the MAX3221EIPWG4? The typical standby current is 1 µA.
- Can the MAX3221EIPWG4 accept 5-V logic input with a 3.3-V supply? Yes, it can accept 5-V logic input with a 3.3-V supply.
- Does the MAX3221EIPWG4 have an automatic power-down feature? Yes, it has an automatic power-down feature that disables drivers for power savings.
- What are the package options for the MAX3221EIPWG4? The device is available in TSSOP (PW), SSOP (DB), and SOT-23-THN packages.
- What is the operating temperature range of the MAX3221EIPWG4? The operating temperature range is -40°C to 85°C.
- What are some common applications of the MAX3221EIPWG4? Common applications include industrial PCs, wired networking, data center and enterprise computing, battery-powered systems, PDAs, notebooks, laptops, palmtop PCs, and hand-held equipment).
