SP339EER1-0A Datasheet, PDF (10/23 Pages) Exar Corporation – RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION

SP339E
RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
REV. 1.0.4
TIMING CHARACTERISTICS (Continued)
UNLESS OTHERWISE NOTED: 
V_CC = +3.3V ±5% or +5.0V ±5%, C1-C4 = 0.1PF; T_A = T_MIN to T_MAX. Typical values are at V_CC = 3.3V, T_A = +25°C.
SYMBOL
PARAMETERS
MIN. TYP. MAX. UNITS
CONDITIONS
RS-485/RS-422, DATA RATE = 250kbps (SLEW = Vcc), ONE TRANSMITTER SWITCHING
Maximum Data Rate
250
kbps R_L = 54:C_L = 50pF
t_RPHL, t_RPLH Receiver Propagation Delay
~t_RPHL-t_RPLH~ Receiver Propagation Delay Skew
50 150 ns
C_L = 15pF, Figure 11
20
ns
t_DPHL, t_DPLH Driver Propagation Delay
~t_DPHL-t_DPLH~ Driver Propagation Delay Skew
t_DR, t_DF
Driver Rise and Fall Time
500 1000 ns
100
ns ^{RL = 54:CL = 50pF,}
Figure 12
300 650 1200 ns
t_RZH, t_RZL
t_RHZ, t_RLZ
t_DZH, t_DZL
t_DHZ, t_DLZ
Receiver Output Enable Time
Receiver Output Disable Time
Driver Output Enable Time
Driver Output Disable Time
200
200
1000
200
ns
C_L = 15pF, Figure 13
ns
ns _{RL = 500:CL = 50pF,}
ns ^{Figure 14}
RS-485/RS-422, DATA RATE = 20Mbps (SLEW = 0V), ONE TRANSMITTER SWITCHING
Maximum Data Rate
20
Mbps R_L = 54:C_L = 50pF
t_RPHL, t_RPLH Receiver Propagation Delay
~t_RPHL-t_RPLH~ Receiver Propagation Delay Skew
50 150 ns
C_L = 15pF, Figure 11
10
ns
t_DPHL, t_DPLH Driver Propagation Delay
~t_DPHL-t_DPLH~ Driver Propagation Delay Skew
t_DR, t_DF
Driver Rise and Fall Time
30 100 ns
10
ns ^{RL = 54:CL = 50pF,}
Figure 12
10
20
ns
t_RZH, t_RZL
t_RHZ, t_RLZ
t_DZH, t_DZL
t_DHZ, t_DLZ
Receiver Output Enable Time
Receiver Output Disable Time
Driver Output Enable Time
Driver Output Disable Time
200 ns
C_L = 15pF, Figure 13
200 ns
200
ns _{RL = 500:CL = 50pF,}
200 ns ^{Figure 14}
10