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MAX232 Datasheet

Multichannel RS-232 Drivers/Receivers

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MAX220–MAX249
+5V-Powered, Multichannel
RS-232 Drivers/Receivers
Absolute Maximum Ratings—MAX225/MAX244–MAX249
(Voltages referenced to GND.)
Supply Voltage (VCC) ...............................................-0.3V to +6V
Input Voltages
TIN‚ ENA, ENB, ENR, ENT, ENRA,
ENRB, ENTA, ENTB..................................-0.3V to (VCC + 0.3V)
RIN .....................................................................................±25V
Continuous Power Dissipation (TA = +70°C)
28-Pin Wide SO (derate 12.50mW/°C above +70°C) .............1W
40-Pin Plastic DIP (derate 11.11mW/°C above +70°C) ...611mW
44-Pin PLCC (derate 13.33mW/°C above +70°C) ...........1.07W
Operating Temperature Ranges
MAX225C_ _, MAX24_C_ _ ..................................0°C to +70°C
TOUT (Note 6)....................................................................±15V
ROUT........................................................-0.3V to (VCC + 0.3V)
Short Circuit Duration (one output at a time)
MAX225E_ _, MAX24_E_ _ ...............................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering,10s)) .................................+300°C
TOUT to GND ...........................................................Continuous
ROUT to GND...........................................................Continuous
Soldering Temperature (reflow)
40 PDIP (P40M-2) ..........................................................+225°C
All other lead(Pb)-free packages...................................+260°C
All other packages containing lead(Pb) ........................+240°C
Note 6: Input voltage measured with transmitter output in a high-impedance state, shutdown, or VCC = 0V.
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 in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Electrical Characteristics—MAX225/MAX244–MAX249
(MAX225, VCC = +5.0V ±5%; MAX244–MAX249, VCC = +5.0V ±10%, external capacitors C1–C4 = 1µF; TA = TMIN to TMAX; unless
otherwise noted.) (Note 7)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
RS-232 TRANSMITTERS
Input Logic-Low Voltage
1.4 0.8
V
Input Logic-High Voltage
2 1.4
V
Logic Pullup/lnput Current
Normal operation
Tables 1a–1d
Shutdown
10
±0.01
50
±1
µA
Data Rate
Tables 1a–1d, normal operation
120 64 kbps
Output Voltage Swing
All transmitter outputs loaded with 3kΩ to GND
±5 ±7.5
V
Output Leakage Current (Shutdown)
Tables 1a–1d
VENA, VENB, VENT, VENTA,
VENTB = VCC, VOUT = ±15V
VCC = 0V,
VOUT = ±15V
±0.01 ±25
±0.01 ±25
µA
Transmitter Output Resistance
Output Short-Circuit Current
RS-232 RECEIVERS
VCC = V+ = V- = 0V, VOUT = ±2V (Note 8)
VOUT = 0V
300 10M
±7 ±30
Ω
mA
RS-232 Input Voltage Operating Range
±25 V
RS-232 Input Logic-Low Voltage
RS-232 Input Logic-High Voltage
RS-232 Input Hysteresis
RS-232 Input Resistance
VCC = +5V
VCC = +5V
VCC = +5V
0.8 1.3
V
1.8 2.4
V
0.2 0.5 1.0
V
3 5 7 kΩ
TTL/CMOS Output Voltage Low
TTL/CMOS Output Voltage High
TTL/CMOS Output Short-Circuit Current
IOUT = 3.2mA
IOUT = -1.0mA
Sourcing VOUT = VGND
Sinking VOUT = VCC
0.2 0.4
3.5 VCC - 0.2
-2 -10
10 30
V
V
mA
TTL/CMOS Output Leakage Current
Normal operation, outputs disabled,
Tables 1a–1d, 0V VOUT VCC, VENR_ = VCC
±0.05 ±0.10 µA
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