Overview
The MAX3221EIPW is a single-channel RS-232 line driver and receiver produced by Texas Instruments. This device operates from a single 3V to 5.5V supply and is designed to provide the electrical interface between an asynchronous communication controller and the serial-port connector. It meets the requirements of TIA/EIA-232-F and includes features such as auto-power down, manual enable/disable, and ESD protection according to IEC 61000-4-2 standards.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 3V to 5.5V |
| Data Signaling Rate | Up to 250kbit/s |
| Driver Output Slew Rate | Maximum of 30V/µs |
| ESD Protection | IEC 61000-4-2, ±15kV |
| Package Type | TSSOP-16, SSOP-16, SOT-23-THN |
| Number of Drivers | 1 |
| Number of Receivers | 1 |
| Auto-Power Down | Yes, with manual enable/disable options |
| RoHS Compliance | Yes |
Key Features
- Single-channel RS-232 line driver and receiver
- Operates from a single 3V to 5.5V supply
- Meets TIA/EIA-232-F requirements
- Auto-power down feature to reduce power consumption when the receiver is disconnected or the remote driver is powered down
- Manual enable/disable options for the driver and receiver
- ESD protection according to IEC 61000-4-2 standards
- INVALID output indicates when the receiver input is unconnected or power is off
Applications
The MAX3221EIPW is suitable for various applications requiring RS-232 communication, including:
- Industrial automation systems
- Point-of-sale terminals
- Medical devices
- Embedded systems
- Any system requiring reliable serial communication over RS-232 interfaces
Q & A
- What is the supply voltage range for the MAX3221EIPW?
The MAX3221EIPW operates from a single 3V to 5.5V supply. - What is the maximum data signaling rate of the MAX3221EIPW?
The device supports data signaling rates up to 250kbit/s. - Does the MAX3221EIPW have ESD protection?
Yes, it provides ESD protection according to IEC 61000-4-2 standards, with ±15kV protection. - What are the package options for the MAX3221EIPW?
The device is available in TSSOP-16, SSOP-16, and SOT-23-THN packages. - Does the MAX3221EIPW support auto-power down?
Yes, it features an auto-power down mode to reduce power consumption when the receiver is disconnected or the remote driver is powered down. - How many drivers and receivers does the MAX3221EIPW have?
The device has one driver and one receiver. - Is the MAX3221EIPW RoHS compliant?
Yes, the MAX3221EIPW is RoHS compliant. - What is the purpose of the INVALID output on the MAX3221EIPW?
The INVALID output goes low when the receiver input is unconnected or power is off. - Can the driver and receiver be manually enabled or disabled on the MAX3221EIPW?
Yes, the driver and receiver can be manually enabled or disabled using the FORCEON and FORCEOFF pins. - What is the typical application of the MAX3221EIPW?
The MAX3221EIPW is typically used in applications requiring reliable RS-232 communication, such as industrial automation, point-of-sale terminals, and medical devices.
