MAXIM MAX3323EEUE+T

The MAX3322E/MAX3323E 3.0V to 5.5V powered EIA/TIA - 232 and V.28/V.24 communications interfaces are designed for multidrop applications with low power requirements, high data - rate capabilities, and enhanced electrostatic discharge (ESD) protection. All RS - 232 inputs and outputs are protected to ± 15KV using the IEC 1000 - 4 - 2 Air - Gap Discharge method, ±8KV using the IEC 1000 - 4 - 2 Contact Discharge method, and ± 15KV using the Human Body Model.

• The MAX3322E/MAX3323E have pin - selectable 5kΩ /high - impedance RS - 232 receivers. These devices are capable of receiving data in high - impedance mode. In multidrop applications, one receiver has a 5kΩ input resistance, while the other receivers are high impedance to ensure the RS - 232 standard is observed. Logic control permits selection of the functional mode: high impedance or RS - 232 standard load.
• The transmitters are enabled by logic control to allow the multiplexing of the inputs to a single UART.
• A proprietary low - dropout transmitter output stage enables true RS - 232 performance from a 3.0V to 5.5V supply with a dual charge pump. The charge pump requires only four small 0.1μF capacitors for operation from a 3.3V supply.
• The MAX3322E/MAX3323E are capable of running at data rates up to 250kbps while maintaining RS - 232 - compliant output levels.
• The MAX3322E/MAX3323E have a unique VL pin that allows operation in mixed - logic voltage systems. Both input and output logic levels are pin programmable through the VL pin.
• The MAX3322E is a 2Tx/2Rx device for hardware handshaking in standard RS - 232 mode, and the MAX3323E is a 1Tx/1Rx, required in most multidrop applications.
• The MAX3322E is offered in a space - saving TSSOP package. The MAX3323E is offered in 16 - pin DIP and space - saving TSSOP packages.

• Bar - Code Scanners
• Video Security
• Industrial Data Acquisition
• Data Splitters