Hot-selling and scarce MAX3243CAI+T +3V to +5.5V RS-232 Transceivers with AutoShutdown SSOP28 spot stock

Product Descriptions

The  MAX3221/MAX3223/MAX3243  achieve  1µA  supplycurrent  with   Maxim’s   revolutionary  AutoShutdown™feature . When the MAX3221/MAX3223/MAX3243 do notsense a valid signal level on their receiver inputs, the onboard power supply and drivers shut down . This occursif the RS-232 cable is disconnected or if the transmittersof the connected peripheral are turned off . The systemturns on again when a valid level is applied to any RS-232receiver input 

The  MAX3221/MAX3223/MAX3243  require  only  0.1µFcapacitors in 3.3V operation, and can operate from inputvoltages ranging from +3 .0V to +5 .5V.

A proprietary,  high-efficiency,  dual  charge-pump  powersupply and a low-dropout transmitter combine to delivertrue RS-232 performance from a single +3 .0V to +5 .5Vsupply.

The  MAX3221  is  a  1-driver/1-receiver  16-pin  SSOPversion of the 20-pin 2-driver/2-receiver MAX3223 .

The MAX3243 is a 3-driver/5-receiver with a complementaryalways-active receiver for external monitoring in a varietyof  28  pin  packages .  See  Order  Information  table  forpackage offerings .

Product Features

●   Integrated Charge Pump Circuitry Simplifies Power Requirements

•   Eliminates the Need for a ±12 Supply

•   Operation From a Single +3 .3V or +5V Supply

●   1µA Supply Current in Shutdown Mode Saves Power

•  AutoShutdown Feature is Enabled After No Activity on Receiver Inputs for 30µs

•  Software Control Option for Shutdown

Product Applications

●   Battery-Powered Equipment

●   Hand-Held Equipment

●   Peripherals

●   Portable Diagnostics Equipment

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​Product Specification

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Product Photos

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