Datasheet

+3.3V, ±15kV ESD-Protected, Fail-Safe,
Hot-Swap, RS-485/RS-422 Transceivers
DRIVER SWITCHING CHARACTERISTICS
MAX3073E/MAX3074E/MAX3075E/MAX3079E with SRL = V
CC
(500kbps)
(V
CC
= 3.3V ±10%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= 3.3V and T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
t
DPLH
180 800
Driver Propagation Delay
t
DPHL
C
L
= 50pF, R
L
= 54Ω, Figures 2 and 3
180 800
ns
Driver Differential Output Rise or
Fall Time
t
DR
,
t
DF
C
L
= 50pF, R
L
= 54Ω, Figures 2 and 3 200 800 ns
Differential Driver Output Skew
|t
DPLH
- t
DPHL
|
t
DSKEW
C
L
= 50pF, R
L
= 54Ω, Figures 2 and 3 100 ns
Maximum Data Rate 500 kbps
Driver Enable to Output High t
DZH
Figure 4 2500 ns
Driver Enable to Output Low t
DZL
Figure 5 2500 ns
Driver Disable Time from Low t
DLZ
Figure 5 100 ns
Driver Disable Time from High t
DHZ
Figure 4 100 ns
Driver Enable from Shutdown to
Output High
t
DZH
(
SHDN
)
Figure 4 4500 ns
Driver Enable from Shutdown to
Output Low
t
DZL
(
SHDN
)
Figure 5 4500 ns
Time to Shutdown t
SHDN
50 200 600 ns
RECEIVER SWITCHING CHARACTERISTICS
MAX3073E/MAX3074E/MAX3075E/MAX3079E with SRL = V
CC
(500kbps)
(V
CC
= 3.3V ±10%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= 3.3V and T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
t
RPLH
200
Receiver Propagation Delay
t
RPHL
C
L
= 15pF, Figures 6 and 7
200
ns
Receiver Output Skew
|t
RPLH
- t
RPHL
|
t
RSKEW
C
L
= 15pF, Figures 6 and 7 30 ns
Maximum Data Rate 500 kbps
Receiver Enable to Output Low t
RZL
Figure 8 50 ns
Receiver Enable to Output High t
RZH
Figure 8 50 ns
Receiver Disable Time from Low t
RLZ
Figure 8 50 ns
Receiver Disable Time from High t
RHZ
Figure 8 50 ns
Receiver Enable from Shutdown
to Output High
t
RZH
(
SHDN
)
Figure 8 4000 ns
Receiver Enable from Shutdown
to Output Low
t
RZL
(
SHDN
)
Figure 8 4000 ns
Time to Shutdown t
SHDN
50 200 600 ns
MAX3070E–MAX3079E
Maxim Integrated
5