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MAX232, MAX232I |
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DUAL EIA-232 DRIVER/RECEIVER |
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SLLS047G ± FEBRUARY 1989 ± REVISED AUGUST 1998 |
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D Operates With Single 5-V Power Supply |
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D, DW, OR N PACKAGE |
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D LinBiCMOS Process Technology |
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(TOP VIEW) |
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D Two Drivers and Two Receivers |
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C1+ |
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VCC |
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D |
± 30-V Input Levels |
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VS+ |
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D Low Supply Current . . . 8 mA Typical |
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T1OUT |
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C1± |
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D Meets or Exceeds TIA/EIA-232-F and ITU |
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R1IN |
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C2± |
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VS± |
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T1IN |
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D Designed to be Interchangeable With |
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T2IN |
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Maxim MAX232 |
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T2OUT |
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R2IN |
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D |
Applications |
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TIA/EIA-232-F |
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logic symbol² |
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Terminals |
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VCC |
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Modems |
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Computers |
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1 |
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VCC |
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D ESD Protection Exceeds 2000 V Per |
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C1+ |
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V |
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MIL-STD-883, Method 3015 |
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2VCC ± 1.5 V |
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S+ |
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D Package Options Include Plastic |
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C2 + |
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6 |
VS ± |
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±2V |
+ 1.5 V |
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CC |
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C2 ± |
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Standard Plastic (N) DIPs |
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T1IN |
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14 |
T1OUT |
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description |
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T2IN |
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7 |
T2OUT |
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The MAX232 device is a dual driver/receiver that |
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includes a capacitive voltage generator to supply |
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R1OUT |
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R1IN |
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EIA-232 voltage levels from a single 5-V supply. |
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9 |
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Each receiver converts EIA-232 inputs to 5-V |
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R2OUT |
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0 V |
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R2IN |
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TTL/CMOS levels. These receivers have a typical |
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15 |
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threshold of 1.3 V and a typical hysteresis of 0.5 V, |
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and can accept ± 30-V inputs. Each driver |
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GND |
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converts TTL/CMOS input levels into EIA-232 |
² This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC |
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levels. The driver, receiver, and voltage-generator |
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Publication 617-12. |
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functions are available as cells in the Texas |
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Instruments LinASIC library. |
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The MAX232 is characterized for operation from |
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0°C to 70°C. The MAX232I is characterized for |
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operation from ±40°C to 85°C. |
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AVAILABLE OPTIONS |
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PACKAGED DEVICES |
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TA |
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SMALL |
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SMALL |
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PLASTIC DIP |
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OUTLINE |
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OUTLINE |
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(N) |
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(D) |
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0°C to 70°C |
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MAX232D³ |
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MAX232DW³ |
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MAX232N |
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± 40°C to 85°C |
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MAX232ID³ |
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MAX232IDW³ |
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MAX232IN |
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³ This device is available taped and reeled by adding an R to the part number (i.e., MAX232DR).
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
LinASIC and LinBiCMOS are trademarks of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright 1998, Texas Instruments Incorporated
POST OFFICE BOX 655303 •DALLAS, TEXAS 75265 |
1 |
MAX232, MAX232I
DUAL EIA-232 DRIVER/RECEIVER
SLLS047G ± FEBRUARY 1989 ± REVISED AUGUST 1998
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)²
Input supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . ± 0.3 V to 6 V |
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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 |
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Input voltage range, VI: Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . ±0.3 V to VCC + 0.3 |
V |
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . . ± 30 |
V |
Output voltage range, VO: T1OUT, T2OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
VS± ±0.3 V to VS+ + 0.3 |
V |
R1OUT, R2OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . ±0.3 V to VCC + 0.3 V |
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Short-circuit duration: T1OUT, T2OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . Unlimited |
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Package thermal impedance, θJA (see Note 2): D package . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . 113°C/W |
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DW package . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . 105°C/W |
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N package . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . 78°C/W |
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Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . ±65°C to 150°C |
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Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . |
. . . . . . . . . . . . . . . . 260°C |
²Stresses beyond those listed under ªabsolute maximum ratingsº 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 ªrecommended operating conditionsº 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.
recommended operating conditions
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MIN |
NOM |
MAX |
UNIT |
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Supply voltage, VCC |
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4.5 |
5 |
5.5 |
V |
High-level input voltage, VIH (T1IN,T2IN) |
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2 |
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V |
Low-level input voltage, VIL (T1IN, T2IN) |
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0.8 |
V |
Receiver input voltage, R1IN, R2IN |
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±30 |
V |
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Operating free-air temperature,TA |
MAX232 |
0 |
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70 |
°C |
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MAX232I |
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2 |
POST OFFICE BOX 655303 •DALLAS, TEXAS 75265 |
MAX232, MAX232I
DUAL EIA-232 DRIVER/RECEIVER
SLLS047G ± FEBRUARY 1989 ± REVISED AUGUST 1998
electrical characteristics over recommended ranges of supply voltage and operating free-air temperature range (unless otherwise noted)
|
PARAMETER |
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TEST CONDITIONS |
MIN |
TYP² |
MAX |
UNIT |
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VOH |
High-level output voltage |
T1OUT, T2OUT |
RL = 3 kΩ to GND |
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5 |
7 |
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V |
R1OUT, R2OUT |
IOH = ± 1 mA |
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3.5 |
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VOL |
Low-level output voltage³ |
T1OUT, T2OUT |
RL = 3 kΩ to GND |
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±7 |
±5 |
V |
R1OUT, R2OUT |
IOL = 3.2 mA |
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0.4 |
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VIT+ |
Receiver positive-going input |
R1IN, R2IN |
VCC = 5 V, |
TA = 25°C |
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1.7 |
2.4 |
V |
threshold voltage |
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VIT± |
Receiver negative-going input |
R1IN, R2IN |
VCC = 5 V, |
TA = 25°C |
0.8 |
1.2 |
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V |
threshold voltage |
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Vhys |
Input hysteresis voltage |
R1IN, R2IN |
VCC = 5 V |
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0.2 |
0.5 |
1 |
V |
ri |
Receiver input resistance |
R1IN, R2IN |
VCC = 5, |
TA = 25°C |
3 |
5 |
7 |
kΩ |
ro |
Output resistance |
T1OUT, T2OUT |
VS+ = VS ± = 0, |
VO = ± 2 V |
300 |
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Ω |
IOS§ |
Short-circuit output current |
T1OUT, T2OUT |
VCC = 5.5 V, |
VO = 0 |
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±10 |
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mA |
IIS |
Short-circuit input current |
T1IN, T2IN |
VI = 0 |
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200 |
μA |
ICC |
Supply current |
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VCC = 5.5 V, |
All outputs open, |
|
8 |
10 |
mA |
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TA = 25°C |
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²All typical values are at VCC = 5 V, TA = 25°C.
³The algebraic convention, in which the least positive (most negative) value is designated minimum, is used in this data sheet for logic voltage
levels only.
§ Not more than one output should be shorted at a time.
switching characteristics, VCC = 5 V, TA = 25°C
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PARAMETER |
TEST CONDITIONS |
MIN TYP MAX |
UNIT |
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tPLH(R) |
Receiver propagation delay time, lowto high-level output |
See Figure 1 |
500 |
ns |
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tPHL(R) |
Receiver propagation delay time, highto low-level output |
See Figure 1 |
500 |
ns |
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SR |
Driver slew rate |
RL = 3 kΩ to 7 kΩ, |
30 |
V/μs |
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See Figure 2 |
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SR(tr) |
Driver transition region slew rate |
See Figure 3 |
3 |
V/μs |
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POST OFFICE BOX 655303 •DALLAS, TEXAS 75265 |
3 |