Datasheet

+3.0V to+5.5V, 1µA, RS-232/RS-485/422
Multiprotocol Transceivers
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Output Short-Circuit Current I
SC
V
Y
or V
Z
= +12V to –7V ±250 mA
MAX3160/
MAX3161
±125
Output Leakage Current
I
O
V
Y
or V
Z
= +12V,
DE485 = GND or SHDN =
GND
MAX3162 ±25
µA
RS-232 TIMING CHARACTERISTICS (FAST = GND, 250kbps, ONE TRANSMITTER SWITCHING)
Maximum Data Rate R
L
= 3kΩ, C
L
= 1000pF 250 kbps
Receiver Propagation Delay R_IN to R_OUT, C
L
= 150pF 0.15 µs
Receiver Output Enable Time 200 ns
Receiver Output Disable Time 200 ns
Transmitter Skew |t
PHL
- t
PLH
| 100 ns
Receiver Skew |t
PLH
- t
PHL
|50ns
C
L
= 150pF
to 1000pF
630
Transition-Region Slew Rate
V
CC
= +3.3V, T
A
= +25°C,
R
L
=3kΩ to 7kΩ, measured
from +3.0V or –3.0V to
+3.0V
C
L
= 150pF
to 2500pF
430
V/µs
RS-232 TIMING CHARACTERISTICS (FAST = V
CC
, 1Mbps, ONE TRANSMITTER SWITCHING)
V
CC
= +3V to +4.5V, R
L
= 3kΩ, C
L
= 250pF 1
Maximum Data Rate
V
CC
= +4.5V to +5.5V, R
L
= 3kΩ,
C
L
= 1000pF
1
Mbps
Receiver Propagation Delay R_IN to R_OUT, C
L
= 150pF 0.15 µs
Receiver Output Enable Time 200 ns
Receiver Output Disable Time 200 ns
Transmitter Skew |t
PHL
- t
PLH
|25ns
Receiver Skew |t
PLH
- t
PHL
|50ns
Transition-Region Slew Rate
V
CC
= +3.3V, T
A
= +25°C, R
L
=3kΩ to 7kΩ,
C
L
= 150pF to 1000pF, measured from
+3.0V or –3.0V to +3.0V
24 150 V/μs
RS-485/422 TIMING CHARACTERISTICS (FAST = GND) 250kbps
Driver Propagation Delay
t
DPHL
,
t
DPLH
R
DIFF
= 54Ω, C
L
= 50pF, Figures 3, 5 200 400 800 ns
Driver Rise and Fall Time
t
DPHL
,
t
DPLH
R
DIFF
= 54Ω, C
L
= 50pF, Figures 3, 5 200 400 800 ns
Driver Propagation Delay Skew t
DSKEW
R
DIFF
= 54Ω, C
L
= 50pF, Figure 3, 5 200 ns
Driver Output Enable Time t
DZH
, t
RZL
R
DIFF
= 54Ω, C
L
= 50pF, Figures 4, 6 400 800 ns
Driver Output Disable Time t
DLZ
, t
DHZ
R
DIFF
= 54Ω, C
L
= 50pF, Figure 4, 6 200 400 ns
Receiver Propagation Delay
t
RPLH,
t
RPHL
C
L
= 15pF, Figures 7, 9 25 80 150 ns
Receiver Propagation Delay
Skew
t
RSKEW
C
L
= 50pF, Figures 7, 9 10 ns
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3V to +5.5V, C1–C4 = 0.1µF when tested at +3.3V ±10%; C1 = 0.047µF and C2, C3, C4 = 0.33µF when tested at +5V
±10%; T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
4
Maxim Integrated
MAX3160/MAX3161/MAX3162