1.8V to 4.25V-Powered,

True RS-232 Dual Transceiver

2

_______________________________________________________________________________________

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.

Supply Voltages

V- .......................................................................+0.3V to -7.4V

LX ................................................................-0.3V to (1V + V+)

Input Voltages

T_IN, EN, S

—

H

—

D

—

N

–

................................................. -0.3V to +7V

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

Output Voltages

T_OUT.............................................................................±15V)

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

Plastic DIP (derate 11.11mW/°C above +70°C) ..........889mW

Wide SO (derate 10.00mW/°C above +70°C)..............800mW

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

Operating Temperature Ranges

MAX218C_ P ..................................................... 0°C to +70°C

MAX218E_ P ................................................... -40°C to +85°C

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

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

All transmitter outputs loaded with 3k

Ω to ground

-15V < R_IN < +15V

—

H

—

D

—

N

–

T_IN, EN, S

—

H

—

D

—

N

–

T_IN

T_IN, EN, S

—

H

—

D

—

N

–

S

—

H

—

D

—

N

–

= EN = 0V, all R_INs static

S

—

H

—

D

—

N

–

R_OUT, 0V

T_IN, EN, S

—

H

—

D

—

N

–

CONDITIONS

V

±5

±6

Output Voltage Swing

k

Ω

35

7

Input Resistance

V

0.7

Input Hysteresis

V

2.8

Input Threshold High

3.0

V

0.3

Input Threshold Low

0.4

V

-25

+25

Input Voltage Range

µA

0.05

±10

Output Leakage Current

V

Output Voltage High

mA

1.9

3.0

Supply Current (Note 1)

V

1.8

4.25

Operating Voltage Range

V

0.4

Output Voltage Low

µA

0.001

±1

Input Leakage Current

V

0.1

Input Hysteresis

V

Input Logic Threshold High

0.04

10

µA

0.04

10

Shutdown Supply Current

V

Input Logic Threshold Low

UNITS

MIN

TYP

MAX

PARAMETER

mA

±24

±100

Output Short-Circuit Current

Ω

300

Output Resistance

DC CHARACTERISTICS

EIA/TIA-232E RECEIVER INPUTS

LOGIC

EIA/TIA-232E TRANSMITTER OUTPUTS

Note 1: Entire supply current for the circuit of Figure 1.