MAX338 datasheet(2/14 Pages) MAXIM

2 / 14 page

+2.35V to +5.5V, 1µA, 2Tx/2Rx RS-232 Transceivers

with ±15kV ESD-Protected I/O and Logic Pins

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC = +2.35V to +5.5V, VL = +1.65V to +5.5V. When VCC < +4.5V, C1 = C2 = C3 = C4 = 0.1µF; when VCC

≥ +4.5V, C1 = 0.047µF,

C2 = C3 = C4 = 0.33µF; TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = VL = +3.3V, TA = +25°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 in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

Note 1: V+ and V- can have maximum magnitudes of +7V, but their absolute difference cannot exceed +13V.

VCC to GND ...........................................................-0.3V to +6.0V

VL to GND..............................................................-0.3V to +6.0V

V+ to GND .............................................................-0.3V to +7.0V

V- to GND ..............................................................+0.3V to -7.0V

V+ + |V-| (Note 1) .................................................................+13V

Input Voltages

T_IN, FORCEON, FORCEOFF to GND ...............-0.3V to +6.0V

R_IN to GND .....................................................................±25V

Output Voltages

T_OUT to GND...............................................................±13.2V

R_OUT, INVALID to GND ...........................-0.3V to (VL + 0.3V)

Short-Circuit Duration T_OUT to GND........................Continuous

Continuous Power Dissipation (TA = +70°C)

20-Pin TSSOP (derate 10.9mW/°C over +70°C) .........879mW

Operating Temperature Ranges

MAX3380ECUP/MAX3381ECUP........................0°C to +70°C

MAX3380EEUP/MAX3381EEUP .....................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Receivers idle, VT_IN = VCC or GND,

FORCEON = GND,

FORCEOFF = VCC

Supply Current, AutoShutdown

Plus

ICC

FORCEOFF = GND

µA

Supply Current, Normal Operation

ICC

FORCEON =

FORCEOFF = VL, no load

0.3

LOGIC INPUTS (T_IN, FORCEON, FORCEOFF)

VCC = +5.5V, VL = +5.5V

0.4

1.2

Input Logic Threshold Low

VIL

VCC = +2.5V, VL = +1.65V

0.4

VCC = +5.5V, VL = +5.5V

VL ✕ 0.66

Input Logic Threshold High

VIH

VCC = +2.5V, VL = +1.65V

VL ✕ 0.66

Transmitter Input Hysteresis

0.5

Input Leakage Current

±0.01

±1µA

RECEIVER OUTPUTS (R_OUT) AND INVALID

Output Voltage Low

IOUT = 500µA

0.5

Output Voltage High

IOUT = -500µA

VL - 0.4 VL - 0.2

RECEIVER INPUTS (R_IN)

Input Voltage Range

-25

+25

VL = +3.3V

0.6

1.2

Input Threshold Low

TA = +25

°C

VL = +5.0V

0.8

1.5

VL = +3.3V

1.5

2.4

Input Threshold High

TA = +25

°C

VL = +5.0V

1.8

2.4

Input Hysteresis

0.3

Input Resistance

TA = +25°C

357

Ω

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