MAX3389E中文资料2.5V、±15kV ESD保护、RS-232收发器，用于PDA和蜂窝电话数据手册ADI规格书

描述 Description

The MAX3388E/MAX3389E are 2.5V-powered EIA/TIA-232 and V.28/V.24 communications interfaces with low power requirements, high data-rate capabilities, and enhanced electrostatic discharge (ESD) protection. The MAX3388E/MAX3389E have two receivers and three transmitters. 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.
In addition to the traditional RS-232 I/O, these devices have dedicated logic-level I/O pins for additional device-to-device handshaking. During shutdown the logic-level I/O pins are active for the MAX3389E. An internal 62Ω switch is provided to switch power to external circuitry or modules.
A proprietary low-dropout transmitter output stage enables RS-232 compatible performance from a +2.35V to +3.0V supply with a dual charge pump. The charge pump requires only four small 0.1µF capacitors for operation from a +2.5V supply. The MAX3388E/MAX3389E are capable of running at data rates up to 460kbps while maintaining RS-232-compatible output levels.
The MAX3388E/MAX3389E have a unique VL pin that allows interoperation in mixed-logic voltage systems. Both input and output logic levels are pin programmable through the VL pin. The MAX3388E/MAX3389E are available in a space-saving TSSOP package.

特性 Features

• VL Pin for Compatibility with Mixed-Voltage Systems •Additional I/O for Hot-Sync Applications
• ±15kV ESD Protection on Rx Inputs, Tx Outputs, LIN, and SWIN
• Low 300µA Supply Current
• Guaranteed 460kbps Data Rate
• 1µA Low-Power Shutdown
• Integrated Switch for Powering Remote Circuitry
• Flow-Through Pinout
• LOUT Active During Shutdown (MAX3389E)

应用 Application

• 电池供电应用
• 蜂窝数据电缆
• 手持式装置
• PDA与PDA托架
• 外设
• 亚笔记本与掌上电脑

简介

MAX3389E属于集成电路（IC）的驱动器接收器收发器。由ADI制造生产的MAX3389E驱动器，接收器，收发器该系列产品的主要功能是提供必需的硬件资源，以通过延长电缆或印制线进行通信。确切的功能会因所采用的通信协议而异，可能包括诸如瞬态抑制之类的功能，这些功能对于通信用途可能并非绝对必要，但对于可能的使用环境却是明智之选。