DatasheetsPDF.com

MAX3221

Maxim
Part Number MAX3221
Manufacturer Maxim
Description +3V to +5.5V RS-232 Transceivers
Published May 10, 2005
Detailed Description Click here for production status of specific part numbers. MAX3221/MAX3223/ MAX3243 +3V to +5.5V RS-232 Transceivers wi...
Datasheet PDF File MAX3221 PDF File

MAX3221
MAX3221

Overview
Click here for production status of specific part numbers.
MAX3221/MAX3223/ MAX3243 +3V to +5.
5V RS-232 Transceivers with AutoShutdown General Description The MAX3221/MAX3223/MAX3243 achieve 1µA supply current with Maxim’s revolutionary AutoShutdown™ feature.
When the MAX3221/MAX3223/MAX3243 do not sense a valid signal level on their receiver inputs, the onboard power supply and drivers shut down.
This occurs if the RS-232 cable is disconnected or if the transmitters of the connected peripheral are turned off.
The system turns on again when a valid level is applied to any RS-232 receiver input.
The MAX3221/MAX3223/MAX3243 require only 0.
1µF capacitors in 3.
3V operation, and can operate from input voltages ranging from +3.
0V to +5.
5V.
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.
The MAX3221 is a 1-driver/1-receiver 16-pin SSOP version of the 20-pin 2-driver/2-receiver MAX3223.
The MAX3243 is a 3-driver/5-receiver with a complementary always-active receiver for external monitoring in a variety of 28 pin packages.
See Order Information table for package offerings.
Applications ●● Battery-Powered Equipment ●● Hand-Held Equipment ●● Peripherals ●● Portable Diagnostics Equipment Selector Guide PART Tx Rx VCC RANGE (V) AutoShutdown MAX3221 1 1 3.
0 to 5.
5 Yes MAX3223 2 2 3.
0 to 5.
5 Yes MAX3243 3 5 3.
0 to 5.
5 Yes Pin Configurations appear at end of data sheet.
Typical Operating Circuits appear at end of data sheet.
AutoShutdown and UCSP are trademarks of Maxim Integrated Products, Inc.
Benefits and 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 Ordering...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)