MAX232AMLP datasheet(8/36 Pages) MAXIM

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Input Logic Threshold Low

+5V-Powered, Multichannel RS-232

Drivers/Receivers

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS—MAX225/MAX244–MAX249

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 oth-

erwise noted.)

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.

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

TOUT (Note 5).....................................................................±15V

ROUT ........................................................-0.3V to (VCC + 0.3V)

Short Circuit (one output at a time)

TOUT to GND ............................................................Continuous

ROUT to GND............................................................Continuous

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

MAX225E_ _, MAX24_E_ _ ...............................-40°C to +85°C

Storage Temperature Range .............................-65°C to +160°C

Lead Temperature (soldering,10s) (Note 6) ....................+300°C

VCC = 0V,

VOUT = ±15V

µA

Tables 1a–1d

±0.01

±25

Normal operation

Shutdown

Tables 1a–1d, normal operation

All transmitter outputs loaded with 3k

Ω to GND

ENA, ENB, ENT, ENTA, ENTB =

VCC, VOUT = ±15V

RS-232 Input Hysteresis

RS-232 Input Threshold Low

±5

±7.5

Output Voltage Swing

Output Leakage Current (Shutdown)

±0.01

±25

Ω

300

10M

VCC = V+ = V- = 0V, VOUT = ±2V (Note 7)

Transmitter Output Resistance

µA

PARAMETER

±0.05

±0.10

MIN

TYP

MAX

UNITS

Normal operation, outputs disabled,

Tables 1a–1d, 0V

≤ VOUT ≤ VCC, ENR_ = VCC

TTL/CMOS Output Leakage Current

Shrinking VOUT = VCC

-2

-10

Sourcing VOUT = GND

3.5

VCC - 0.2

IOUT = -1.0mA

TTL/CMOS Output Voltage High

0.2

0.4

IOUT = 3.2mA

TTL/CMOS Output Voltage Low

Ω

0.2

0.5

1.0

VCC = 5V

1.4

0.8

TTL/CMOS Output Short-Circuit Current

1.8

2.4

0.8

1.3

VCC = 5V

RS-232 Input Resistance

±25

RS-232 Input Voltage Operating Range

±7

±30

VOUT = 0V

Output Short-Circuit Current

kbps

120

Data Rate

CONDITIONS

VCC = 5V

µA

±0.01

±1

Logic Pull-Up/lnput Current

Tables 1a–1d

RS-232 Input Threshold High

1.4

Input Logic Threshold High

RS-232 TRANSMITTERS

RS-232 RECEIVERS

Note 5: Input voltage measured with transmitter output in a high-impedance state, shutdown, or VCC = 0V.

Note 6: Maximum reflow temperature for the MAX225/MAX245/MAX246/MAX247 is +225°C.

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