500kbps) – Rainbow Electronics MAX3079E User Manual
Page 5
MAX3070E–MAX3079E
+3.3V, ±15kV ESD-Protected, Fail-Safe,
Hot-Swap, RS-485/RS-422 Transceivers
_______________________________________________________________________________________
5
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
= 54
Ω, Figures 2 and 3
180
800
ns
Driver Differential Output Rise or
Fall Time
t
DR ,
t
DF
C
L
= 50pF, R
L
= 54
Ω, Figures 2 and 3
200
800
ns
Differential Driver Output Skew
|t
DPLH
- t
DPHL
|
t
DSKEW
C
L
= 50pF, R
L
= 54
Ω, 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