MAX249

Features:

Superior to Bipolar
 Operate from Single +5V Power Supply
    (+5V and +12V-MAX231/MAX239)
 Low-Power Receive Mode in Shutdown
    (MAX223/MAX242)
Meet All EIA/TIA-232E and V.28 Specifications
Multiple Drivers and Receivers
3-State Driver and Receiver Outputs
Open-Line Detection (MAX243)


Application

Portable Computers
Low-Power Modems
Interface Translation
Battery-Powered RS-232 Systems
Multidrop RS-232 Networks


Specifications

Supply Voltage (V_CC) ................................................-0.3V to +6V
Input Voltages
   T_IN..............................................................-0.3V to (V_CC - 0.3V)
   R_IN (Except MAX220) ........................................................±30V
   R_IN (MAX220).....................................................................±25V
   T_OUT (Except MAX220) (Note 1) .......................................±15V
   T_OUT (MAX220)...............................................................±13.2V
Output Voltages
   T_OUT..................................................................................±15V
   R_OUT..........................................................-0.3V to (V_CC + 0.3V)
Driver/Receiver Output Short Circuited to GND............Continuous
Continuous Power Dissipation (T_A = +70°C)
  16-Pin Plastic DIP (derate 10.53mW/°C above +70°C)..842mW
  18-Pin Plastic DIP (derate 11.11mW/°C above +70°C)..889mW
  20-Pin Plastic DIP (derate 8.00mW/°C above +70°C) ....440mW
  16-Pin Narrow SO (derate 8.70mW/°C above +70°C) ...696mW
  16-Pin Wide SO (derate 9.52mW/°C above +70°C)........762mW
  18-Pin Wide SO (derate 9.52mW/°C above +70°C)........762mW
  20-Pin Wide SO (derate 10.00mW/°C above +70°C)......800mW
  20-Pin SSOP (derate 8.00mW/°C above +70°C) ............640mW
  16-Pin CERDIP (derate 10.00mW/°C above +70°C) .......800mW
  18-Pin CERDIP (derate 10.53mW/°C above +70°C) .......842mW
Operating Temperature Ranges
   MAX2_ _AC_ _, MAX2_ _C_ _................................0°C to +70°C
   MAX2_ _AE_ _, MAX2_ _E_ _ .............................-40°C to +85°C
   MAX2_ _AM_ _, MAX2_ _M_ _...........................-55°C to +125°C
Storage Temperature Range ..............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .................................+300°C


Description

The MAX220MAX249 family of line drivers/receivers is intended for all EIA/TIA-232E and V.28/V.24 communica-tions interfaces, particularly applications where ±12V is not available.

These MAX220MAX249 parts are especially useful in battery-powered sys-tems, since their low-power shutdown mode reduces power dissipation to less than 5µW. The MAX225, MAX233, MAX235, and MAX245/MAX246/MAX247 useno external components and are recommended for appli-cations where printed circuit board space is critical.