SP339E
9
REV. 1.0.4 RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
TIMING CHARACTERISTICS
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
ALL MODES
t
ENABLE
Enable from Shutdown 1000 ns
t
SHUTDOWN
Enable to Shutdown 1000 ns
RS-232, DATA RATE = 250kbps (SLEW = Vcc), ONE TRANSMITTER SWITCHING
Maximum Data Rate 250 kbps
R
L
= 3k:, C
L
= 1000pF
t
RHL
, t
RLH
Receiver Propagation Delay 100 ns
C
L
= 150pF, Figure 9
~t
RHL
-t
RLH
~
Receiver Propagation Delay Skew 100 ns
t
DHL
, t
DLH
Driver Propagation Delay 1400 ns
R
L
= 3k:, C
L
= 2500pF,
Figure 10
~t
DHL
-t
DLH
~
Driver Propagation Delay Skew 600 ns
t
SHL,
t
SLH
Transition Region Slew Rate from
+3.0V to -3.0V or -3.0V to +3.0V
4 30 V/Ps
V
CC
= 3.3V, R
L
= 3k: to 7k:
C
L
= 150pF to 2500pF,
Figure 10
t
SHL,
t
SLH
Transition Region Slew Rate from
+3.0V to -3.0V or -3.0V to +3.0V
6 30 V/Ps
V
CC
= 3.3V, R
L
= 3k: to 7k:
C
L
= 150pF to 2500pF,
T
A
= 25°C, Figure 10
RS-232, DATA RATE = 1Mbps (SLEW = 0V), ONE TRANSMITTER SWITCHING
Maximum Data Rate 1 Mbps
R
L
= 3k:, C
L
= 250pF
t
RHL
, t
RLH
Receiver Propagation Delay 100 ns
C
L
= 150pF, Figure 9
~t
RHL
-t
RLH
~
Receiver Propagation Delay Skew 100 ns
t
DHL
, t
DLH
Driver Propagation Delay 300 ns
R
L
= 3k:, C
L
= 1000pF,
Figure 10
~t
DHL
-t
DLH
~
Driver Propagation Delay Skew 150 ns
t
SHL,
t
SLH
Transition Region Slew Rate from
+3.0V to -3.0V or -3.0V to +3.0V
15 150 V/Ps
V
CC
= 3.3V, R
L
= 3k: to 7k:
C
L
= 150pF to 1000pF,
Figure 10
t
SHL,
t
SLH
Transition Region Slew Rate from
+3.0V to -3.0V or -3.0V to +3.0V
24 150 V/Ps
V
CC
= 3.3V, R
L
= 3k: to 7k:
C
L
= 150pF to 1000pF,
T
A
= 25°C, Figure 10