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Maxim产品 - MAX3238介绍

MAX3238 - +3.0V至+5.5V、1µA、高达250kbps、真RS-232收发器，提供AutoShutdown Plus

MAX3238是Maxim美信半导体公司的一款驱动器-接收器产品，MAX3238是+3.0V至+5.5V、1µA、高达250kbps、真RS-232收发器，提供AutoShutdown Plus，本站介绍了MAX3238的封装应用图解、特点和优点、功能等，并给出了与MAX3238相关的Maxim元器件型号供参考。

MAX3238 - +3.0V至+5.5V、1µA、高达250kbps、真RS-232收发器，提供AutoShutdown Plus - 驱动器-接收器 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX3238 true RS-232 transceiver achieves a 1µA supply current with Maxim's revolutionary AutoShutdown Plus™ feature. When the device does not sense a valid signal transition on either the receiver or transmitter inputs within 30sec, the on-board power supply and drivers shut down. This occurs if the RS-232 cable is disconnected or if the transmitters of the connected peripheral are inactive. The system turns on again when a valid transition is applied to any RS-232 receiver or transmitter input, saving power without changes to the existing BIOS or operating system.

The MAX3238 5-driver/3-receiver complete serial port is a 3V-powered EIA/TIA-232 and V.28/V.24 communications interface intended for notebook or subnotebook computer applications. A proprietary, high-efficiency, dual charge-pump power supply and a low-dropout transmitter combine to deliver true RS-232 performance from a single +3.0V to +5.5V supply. A guaranteed data rate of 250kbps provides compatibility with popular software for communicating with personal computers. The MAX3238 requires only 0.1µF capacitors in 3.3V operation. It is ideal for 3.3V-only systems, mixed 3.3V and 5.0V systems, or 5V-only systems that require true RS-232 performance.

Receiver R1 has an extra, always-active output (in addition to its standard output), which allows external devices, such as a modem, to be monitored without forward biasing the protection diodes in circuitry that may have VCC completely removed.

The MAX3238 is available in a space-saving SSOP package.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • 1µA Supply Current Achieved with AutoShutdown Plus
  • Guaranteed Data Rate: 250kbps
  • 1µA Low-Power Shutdown
  • Receivers Active in AutoShutdown Plus Mode
  • Flow-Through Pinout
  • Meets EIA/TIA-232 Specifications Down to 3.0V
  • Guaranteed 6V/µs Slew Rate
  • Auto shutdown reduces supply current to 1uA
    • 热门应用
  • 电池供电应用
  • 手持式装置
  • 高速调制解调器
  • 笔记本电脑、亚笔记本电脑与掌上电脑
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