3Mbps RS-232 Transceivers with

Low-Voltage Interface

_______________________________________________________________________________________

3

ELECTRICAL CHARACTERISTICS (continued)

at TA = +25°C.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

RECEIVER INPUTS

Input-Voltage Range

-25

+25

V

0.6

1.2

Input Threshold Low

0.8

1.5

V

1.5

2.4

Input Threshold High

1.8

2.4

V

Input Hysteresis

0.5

V

Input Resistance

357

k

Ω

TRANSMITTER OUTPUTS

Output-Voltage Swing

All transmitter outputs loaded with 3k

Ω to

GND

±5

±5.4

V

Output Resistance

±2V

300

10M

Ω

Output Short-Circuit Current

-60

+60

mA

Output Leakage Current

transmitters disabled

-25

+25

µA

AutoShutdown Plus (FORCEON = GND,

Positive threshold, Figure 1

2.7

V

Receiver Input Threshold Valid

Level

Negative threshold, Figure 1

-2.7

V

Receiver Input Threshold

Invalid Level

Figure 1

-0.3

+0.3

V

Receiver or Transmitter Edge-to-

Transmitters Enabled

100

µs

Receiver or Transmitter Edge-to-

Transmitters Shutdown

15

30

60

s

TIMING CHARACTERISTICS (MAX13234E/MAX13236E)

Maximum Data Rate

switching

250

kbps

Receiver Propagation Delay

0.15

µs

Transmitter Skew

Figures 4, 5 (Note 4)

100

ns

Receiver Skew

Figures 2, 3

50

ns