MAX3233E数据手册集成电路（IC）的驱动器接收器收发器规格书PDF

描述 Description

The MAX3233E/MAX3235E are EIA/TIA-232 and V.28/V.24 communications interfaces with automatic shutdown/wake-up features, high data-rate capabilities, and enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge, to ±8kV using IEC 1000-4-2 Contact Discharge, and to ±15kV using the Human Body Model. The MAX3233E operates from a +3.3V supply; the MAX3235E operates from +5.0V.
All devices achieve a 1µA supply current using Maxim's revolutionary AutoShutdown Plus™ feature. These devices automatically enter a low-power shutdown mode when the following two conditions occur: either the RS-232 cable is disconnected or the transmitters of the connected peripherals are inactive, and the UART driving the transmitter inputs is inactive for more than 30 seconds. They turn on again when they sense a valid transition at any transmitter or receiver input. AutoShutdown Plus saves power without changes to the existing BIOS or operating system.
The MAX3233E/MAX3235E have internal dual charge pumps requiring no external capacitors. Both transceivers have a proprietary low-dropout transmitter output stage that enables true RS-232 performance from a +3.0V to +3.6V supply for the MAX3233E or a +4.5V to +5.5V supply for the MAX3235E. These devices are guaranteed to operate up to 250kbps. Both are available in space-saving 20-pin wide SO or plastic DIP packages.

特性 Features

• ESD Protection for RS-232 I/O Pins
• ±15kV—Human Body Model
• ±8kV—IEC 1000-4-2, Contact Discharge
• ±15kV—IEC 1000-4-2, Air-Gap Discharge
• Latchup Free
• 1µA Supply Current
• AutoShutdown Plus-1997 EDN Magazine Innovation of the Year
• Single-Supply Operation
• +3.0V to +3.6V (MAX3233E)
• +4.5V to +5.5V (MAX3235E)
• 250kbps Guaranteed Data Rate
• 6V/µs Guaranteed Slew Rate
• Meets EIA/TIA-232 Specifications Down to 3.0V (MAX3233E)
• Internal Charge-Pump Capacitors

应用 Application

• 电池供电应用
• 蜂窝电话
• 嵌入式系统
• 手持式装置
• 外设
• 亚笔记本与掌上电脑

简介

MAX3233E属于集成电路（IC）的驱动器接收器收发器。由制造生产的MAX3233E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。