MAX3140 Maxim, MAX3140 Datasheet - Page 5

• Manufacturer Part Number: MAX3140
• Description: SPI/MICROWIRE-Compatible UART with Integrated True Fail-Safe RS-485/RS-422 Transceivers
• Manufacturer: Maxim

SWITCHING CHARACTERISTICS—SRL = Unconnected
(V
SPI/MICROWIRE-Compatible UART with Integrated
Driver Input to Output
Driver Output Skew
|
Driver Rise or Fall Time
Maximum Data Rate
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
Receiver Input to Output
|
Receiver Skew
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable Time from Low
Receiver Disable Time from
High
Time to Shutdown
Driver Enable from Shutdown to
Output High
Driver Enable from Shutdown to
Output Low
Receiver Enable from Shutdown
to Output High
Receiver Enable from Shutdown
to Output Low
CC
t
t
DPLH
RPLH
= +5V ±5%, T
- t
- t
PARAMETER
DPHL
RPHL
|
|
Differential
A
_______________________________________________________________________________________
= T
True Fail-Safe RS-485/RS-422 Transceivers
MIN
to T
MAX
t
t
t
t
, unless otherwise noted. Typical values are at V
DZH(SHDN)
RZH(SHDN)
SYMBOL
DZL(SHDN)
RZL(SHDN)
t
t
DR
DSKEW
t
t
t
t
t
t
f
RPLH
SHDN
DPLH
DPHL
t
t
RSKD
t
t
t
t
RPHL
t
t
MAX
DZH
DHZ
RZH
RHZ
DZL
DLZ
RZL
RLZ
, t
DF
,
Figures 3 and 5, R
C
Figures 3 and 5, R
C
Figures 3 and 5, R
C
Figures 4 and 6, C
Figures 4 and 6, C
Figures 4 and 6, C
Figures 4 and 6, C
Figures 7 and 9,
rise and fall time of V
Figures 7 and 9,
rise and fall time of V
Figures 2 and 8, C
Figures 2 and 8, C
Figures 2 and 8, C
Figures 2 and 8, C
(Note 5)
Figures 4 and 6, C
Figures 4 and 6, C
Figures 2 and 8, C
Figures 2 and 8, C
L1
L1
L1
= C
= C
= C
L2
L2
L2
= 100pF
= 100pF
= 100pF
CONDITIONS
|
|
V
V
DIFF
DIFF
DIFF
L
L
L
L
L
L
L
L
L
L
L
L
ID
ID
= 100pF, S2 closed
= 100pF, S1 closed
= 15pF, S1 closed
= 15pF, S2 closed
= 100pF, S1 closed
= 100pF, S2 closed
= 100pF, S1 closed
= 100pF, S2 closed
= 15pF, S2 closed
= 15pF, S1 closed
= 100pF, S2 closed
= 100pF, S1 closed
ID
ID
|
|
≥ 2.0V,
≥ 2.0V,
= 54Ω,
= 54Ω,
= 54Ω,
≤ 15ns
≤ 15ns
CC
= +5V and T
MIN
500
500
667
115
50
A
= +25°C.)
2030
2030
1320
TYP
127
200
20
20
20
20
-3
3
±200
MAX
2600
2600
2500
3500
3500
6000
6000
3500
3500
±30
100
100
200
600
50
50
50
50
UNITS
kbps
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5