3V to 5.5V, up to 250kbps True RS-232 Transceiver

with 4µA AutoShutdown Plus and Power-On Reset

2

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

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.

V+ (Note 1) .................................................................-0.3V to 7V

V- (Note 1)...................................................................0.3V to -7V

Input Voltages

T_IN, FORCEOFF, FORCEON ................................-0.3V to 6V

R_IN.................................................................................±25V

Output Voltages

T_OUT ..........................................................................±13.2V

Short-Circuit Duration

T_OUT....................................................................Continuous

SSOP (derate 8.00mW/°C above +70°C) ....................640mW

Operating Temperature Ranges

MAX3320_CAP ...................................................0°C to +70°C

MAX3320_EAP ................................................-40°C to +85°C

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

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

V

-0.3

0.3

Figure 3

Receiver Input Threshold to

INVALID Output Low

-2.7

Figure 3, negative threshold

V

2.7

Figure 3, positive threshold

Receiver Input Threshold to

INVALID Output High

k

Ω

3

5

7

Input Resistance

V

0.3

Input Hysteresis

1.8

2.4

V

1.5

2.4

Input Threshold High

0.8

1.5

V

0.6

1.2

Input Threshold Low

V

-25

25

Input Voltage Range

µA

4.0

10

Shutdown Supply Current

mA

0.45

1.0

Power-Supply Current

V

0.6

0.1

Output Voltage High

V

0.4

Output Voltage Low

mV

250

T_IN, FORCEON, FORCEOFF

Input Hysteresis

µA

±0.01

±1.0

T_IN, FORCEON, FORCEOFF

Input Leakage Current

µA

4.0

10

All R_IN unconnected, FORCEON = GND,

AutoShutdown Plus

Supply Current

V

0.8

T_IN, FORCEON, FORCEOFF

Input Logic Threshold Low

V

2.0

Input Logic Threshold High

UNITS

MIN

TYP

MAX

CONDITIONS

PARAMETER

T_IN, FORCEON,

FORCEOFF

2.4

V

0.4

INVALID Output Voltage Low

Note 1: V+ and V- can have a magnitude of +7V (max), but their absolute difference cannot exceed +13V.

DC CHARACTERISTICS

LOGIC INPUTS AND RECEIVER OUTPUTS

RECEIVER INPUTS

INVALID OUTPUT