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The MAX232 device is a dual driver/receiver that includes a capacitive voltage generator to supply EIA-232 voltage levels from a single 5-V supply. Each receiver converts EIA-232 inputs to 5-V TTL/CMOS levels. These receivers have a typical threshold of 1.3 V and a typical hysteresis of 0.5 V, and can accept ±30-V inputs. Each driver converts TTL/CMOS input levels into EIA-232 levels. The driver, receiver, and voltage-generator functions are available as cells in the Texas Instruments LinASICETM library.
The MAX232 is characterized for operation from 0°C to 70°C. The MAX232I is characterized for operation from 40°C to 85°C.
MAX232I Maximum Ratings
Input supply voltage range, VCC (see Note 1) ........................ 0.3 V to 6 V Positive output supply voltage range, VS+....................... VCC 0.3 V to 15 V Negative output supply voltage range, VS ........................0.3 V to 15 V Input voltage range, VI: Driver ........................... 0.3 V to VCC + 0.3 V Receive r ..............................................±30 V Output voltage range, VO: T1OUT, T2OU T...................VS 0.3 V to VS+ + 0.3 V R1OUT, R2OUT ....................................0.3 V to VCC + 0.3 V Short-circuit duration: T1OUT, T2OUT ...............................Unlimited Package thermal impedance, qJA (see Note 2): D package ................... 113°C/W DW package ...........................................105°C/W N package ............................................. 78°C/W Storage temperature range, Tstg ............................65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds .................. 260°C
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE: 1: All voltage values are with respect to network ground terminal. 2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero.
MAX232I Features
·Operates With Single 5-V Power Supply · LinBiCMOSETM Process Technology · Two Drivers and Two Receivers · ±30-V Input Levels · Low Supply Current . . . 8 mA Typical · Meets or Exceeds TIA/EIA-232-F and ITU Recommendation V.28 · Designed to be Interchangeable With Maxim MAX232 · Applications TIA/EIA-232-F Battery-Powered Systems Terminals Modems Computers · ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015 · Package Options Include Plastic Small-Outline (D, DW) Packages and Standard Plastic (N) DIPs