Electrical characteristics (continued) – Rainbow Electronics MAX14770E User Manual
Page 4
High-ESD Profibus RS-485 Transceiver
MAX14770E
4 ______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V Q10%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V, T
A
= +25NC.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DRIVER SWITCHING CHARACTERISTICS
Driver Propagation
Delay
t
DPLH
R
L
= 54I, C
L
= 50pF; Figures 3 and 4
28
ns
t
DPHL
Differential Driver
Output Skew |t
DPLH
- t
DPHL
|
t
DSKEW
R
L
= 54I, C
L
= 50pF; Figures 3 and 4
1.2
ns
Driver Output
Transition Skew
|t
t(MLH)
|, |t
t(MHL)
|
t
TSKEW
R
L
= 54I, C
L
= 50pF; Figures 3 and 5
2
ns
Driver Differential
Output Rise or Fall
Time
t
LH
, t
HL
R
L
= 54I, C
L
= 50pF; Figures 3 and 4
15
ns
Maximum Data Rate
20
Mbps
Driver Enable to
Output High
t
DZH
R
L
= 500I, C
L
= 50pF; Figure 6
50
ns
Driver Enable to
Output Low
t
DZL
R
L
= 500I, C
L
= 50pF; Figure 7
50
ns
Driver Disable Time
from Low
t
DLZ
R
L
= 500I, C
L
= 50pF; Figure 7
40
ns
Driver Disable Time
from High
t
DHZ
R
L
= 500I, C
L
= 50pF, Figure 6
40
ns
Driver Enable Skew
Time
|t
ZL
- t
ZH
|
R
L
= 500I, C
L
= 50pF; Figures 6 and 7
8
ns
Driver Disable Skew
Time
|t
LZ
- t
HZ
|
R
L
= 500I, C
L
= 50pF; Figures 6 and 7
8
ns
Driver Enable from
Shutdown to Output
High
t
DZL(SHDN)
R
L
= 500I, C
L
= 50pF; Figure 7 (Note 6)
100
F
s
Driver Enable from
Shutdown to Output
Low
t
DZH(SHDN)
R
L
= 500I, C
L
= 50pF; Figure 6 (Note 6)
100
F
s
Time to Shutdown
t
SHDN
(Note 6)
50
800
ns
RECEIVER SWITCHING CHARACTERISTICS
Receiver Propagation
Delay
t
RPLH
C
L
= 15pF; Figures 8 and 9 (Note 7)
28
ns
t
RPHL
Receiver Output
Skew
t
RSKEW
C
L
= 15pF; Figures 8 and 9 (Notes 7, 8)
2
ns