MAX3440E Maxim, MAX3440E Datasheet - Page 4

• Manufacturer Part Number: MAX3440E
• Description: 15kV ESD-Protected / 60V Fault-Protected / 10Mbps / Fail-Safe RS-485/J1708 Transceivers
• Manufacturer: Maxim

±15kV ESD-Protected, ±60V Fault-Protected,
10Mbps, Fail-Safe RS-485/J1708 Transceivers
SWITCHING CHARACTERISTICS (MAX3440E/MAX3442E/MAX3444E)
(V
4
Driver Propagation Delay
Driver Differential Propagation Delay
Driver Differential Output
Transition Time
Driver Output Skew
Differential Driver Output Skew
Maximum Data Rate
Driver Enable Time to Output High
Driver Disable Time from Output High
Driver Enable Time from Shutdown to
Output High
Driver Enable Time to Output Low
Driver Disable Time from Output Low
Driver Enable Time from Shutdown to
Output Low
Driver Time to Shutdown
Receiver Propagation Delay
Receiver Output Skew
Receiver Enable Time to Output High
Recei ver D i sab l e Ti m e fr om Outp ut H i g h
Receiver Wake Time from Shutdown
Receiver Enable Time to Output Low
Recei ver D i sab l e Ti m e fr om Outp ut Low
Receiver Time to Shutdown
CC
_______________________________________________________________________________________
= +4.75V to +5.25V, T
PARAMETER
A
= T
MIN
to T
MAX
SYMBOL
t
t
t
S KEWAB
t
RPWAKE
t
t
S KEWBA
t
t
DSKEW
t
t
t
t
t
RSKEW
t
t
t
LH
t
t
t
t
t
t
DPLH
t
t
PLHA,
f
SHDN
RPLH
SHDN
DPHL
PDZH
PDHZ
PDHS
RPZH
RPHZ
PLHB
PDZL
PDLZ
PDLS
RPHL
RPZL
RPLZ
, unless otherwise noted. Typical values are at V
MAX
,t
HL
,
,
,
MAX3440E/MAX3442E,
Figure 3, R
MAX3444E, R
Figure 4, R
Figure 4, R
R
t
t
R
t
Figure 5, R
Figure 5, R L = 500Ω, C
Figure 5, R L = 500Ω, C
(MAX3442E/MAX3444E)
Figure 6, R
Figure 6, R
Figure 6, R
(MAX3442E/MAX3444E)
R
Figure 7, C
C
Figure 8, R
Figure 8, R
Figure 8, R
(MAX3442E/MAX3444E)
Figure 8, R
Figure 8, R
R
(MAX3442E/MAX3444E)
SKEWAB
SKEWBA
DSKEW
L
L
L
L
L
= 500Ω, C
= 54Ω, C
= 54Ω, C
= 500Ω, C
= 20pF, t
= |t
= |t
= |t
L
L
L
L
L
L
L
L
L
L
L
L
L
DPLH
L
L
PLHA
PLHB
RSKEW
= 54Ω, C
= 1kΩ, C
= 54Ω, C
= 54Ω, C
= 500Ω, C
= 500Ω, C
= 500Ω, C
= 500Ω, C
= 20pF, V
= 1kΩ, C
= 1kΩ, C
= 1kΩ, C
= 1kΩ, C
L
L
DIFF
= 50pF,
= 50pF,
= 50p F ( M AX 3442E /M AX 3444E )
= 50pF
CONDITIONS
- t
- t
- t
= 60Ω, C
DPHL
= |t
PHLB
PHLA
L
L
L
L
L
L
L
L
ID
RPLH
L
L
L
L
L
L
= 20pF
= 50pF
= 50pF
= 20pF
= 20pF
= 20pF
= 20pF
= 50pF
|
= 50pF
= 50pF
= 50pF
= 50pF
= 50pF
= 50pF
|,
|
= 2V, V
DIFF
- t
RPHL
= 100pF
CM
|
= 0
CC
= +5V and T
MIN
200
250
A
TYP
= +25°C.)
MAX
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
350
200
800
200
800
4.2
4.2
4.2
UNITS
kbps
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
µs
ns
ns
ns
ns
ns
µs
ns
ns
ns