Datasheet

(V
CC
= 3.3V, T
A
= +25°C)
(V
CC
= 3.3V, T
A
= +25°C)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Driver Di󰀨erential Output Delay t
DD
R
L
= 60Ω, Figure 7 1 22 35 ns
Driver Di󰀨erential Output Transition Time t
TD
R
L
= 60Ω, Figure 7 3 8 25 ns
Driver Propagation Delay, Low-to-High Level t
PLH
R
L
= 27Ω, Figure 8 7 22 35 ns
Driver Propagation Delay, High-to-Low Level t
PHL
R
L
= 27Ω, Figure 8 7 22 35 ns
|t
PLH
- t
PHL
| Driver Propagation Delay Skew (Note 2) t
PDS
R
L
= 27Ω, Figure 8 8 ns
DRIVER OUTPUT ENABLE/DISABLE TIMES (MAX3485/MAX3491 only)
Driver Output Enable Time to Low Level t
PZL
R
L
= 110Ω, Figure 10 45 90 ns
Driver Output Enable Time to High Level t
PZH
R
L
= 110Ω, Figure 9 45 90 ns
Driver Output Disable Time from High Level t
PHZ
R
L
= 110Ω, Figure 9 40 80 ns
Driver Output Disable Time from Low Level t
PLZ
R
L
= 110Ω, Figure 10 40 80 ns
Driver Output Enable Time from Shutdown to Low Level t
PSL
R
L
= 110Ω, Figure 10 650 900 ns
Driver Output Enable Time from Shutdown to High Level t
PSH
R
L
= 110Ω, Figure 9 650 900 ns
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Driver Di󰀨erential Output Delay t
DD
R
L
= 60Ω, Figure 7 24 48 70 ns
Driver Di󰀨erential Output Transition Time t
TD
R
L
= 60Ω, Figure 7 15 35 60 ns
Driver Propagation Delay, Low-to-High Level t
PLH
R
L
= 27Ω, Figure 8 20 48 70 ns
Driver Propagation Delay, High-to-Low Level t
PHL
R
L
= 27Ω, Figure 8 20 48 70 ns
|t
PLH
- t
PHL
| Driver Propagation Delay Skew (Note 2) t
PDS
R
L
= 27Ω, Figure 8 11 ns
Driver Output Enable Time to Low Level t
PZL
R
L
= 110Ω, Figure 10 55 100 ns
Driver Output Enable Time to High Level t
PZH
R
L
= 110Ω, Figure 9 55 100 ns
Driver Output Disable Time from High Level t
PHZ
R
L
= 110Ω, Figure 9 45 80 ns
Driver Output Disable Time from Low Level t
PLZ
R
L
= 110Ω, Figure 10 45 80 ns
Driver Output Enable Time from Shutdown to Low Level t
PSL
R
L
= 110Ω, Figure 10 700 1000 ns
Driver Output Enable Time from Shutdown to High Level t
PSH
R
L
= 110Ω, Figure 9 700 1000 ns
MAX3483/MAX3485/
MAX3486/MAX3488/
MAX3490/MAX3491
3.3V-Powered, 10Mbps and Slew-Rate-Limited
True RS-485/RS-422 Transceivers
www.maximintegrated.com
Maxim Integrated │ 4
Driver Switching Characteristics—MAX3485, MAX3490, and MAX3491
Driver Switching Characteristics—MAX3486