sp338e Exar Corporation, sp338e Datasheet - Page 9

• Manufacturer Part Number: sp338e
• Description: Rs-232/rs-485/rs-422 Transceiver With Internal Termination
• Manufacturer: Exar Corporation

REV. 1.0.0
TIMING CHARACTERISTICS (Continued)
U
V
RS-485/RS-422, DATA RATE = 250kbps (SLEW = Vcc), ONE TRANSMITTER SWITCHING
⏐t
⏐t
RS-485/RS-422, DATA RATE = 20Mbps (SLEW = 0V), ONE TRANSMITTER SWITCHING
⏐t
⏐t
CC
NLESS OTHERWISE NOTED
t
t
t
t
RPHL
DPHL
RPHL
DPHL
RPHL
DPHL
RPHL
DPHL
t
t
t
t
t
t
t
t
RZH
RHZ
DZH
DHZ
RZH
RHZ
DZH
DHZ
S
t
t
= +3.3V ±5% or +5.0V ±5%, C1-C4 = 0.1µF; T
DR,
DR,
YMBOL
, t
, t
, t
, t
, t
, t
, t
, t
, t
, t
, t
, t
-t
-t
-t
-t
t
t
RPLH
DPLH
RPLH
DPLH
RPLH
DPLH
DF
RPLH
DPLH
DF
RZL
RLZ
DZL
DLZ
RZL
RLZ
DZL
DLZ
⏐ Receiver Propagation Delay Skew
⏐ Driver Propagation Delay Skew
⏐ Receiver Propagation Delay Skew
⏐ Driver Propagation Delay Skew
Maximum Data Rate
Receiver Propagation Delay
Driver Propagation Delay
Driver Rise and Fall Time
Receiver Output Enable Time
Receiver Output Disable Time
Driver Output Enable Time
Driver Output Disable Time
Maximum Data Rate
Receiver Propagation Delay
Driver Propagation Delay
Driver Rise and Fall Time
Receiver Output Enable Time
Receiver Output Disable Time
Driver Output Enable Time
Driver Output Disable Time
:
P
ARAMETERS
RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
A
= T
MIN
M
250
300
20
IN
to T
9
.
MAX
T
500
650
50
50
30
10
. Typical values are at V
YP
.
M
1000
1200
1000
150
100
200
200
200
150
100
200
200
200
200
20
10
10
20
AX
.
U
Mbps R
kbps
NITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
R
C
R
Figure 16
C
R
Figure 18
C
R
Figure 16
C
R
Figure 18
CC
L
L
L
L
L
L
L
L
L
L
= 54
= 15pF,
= 54Ω, C
= 15pF,
= 500Ω, C
= 54Ω, C
= 15pF,
= 54Ω, C
= 15pF,
= 500Ω, C
= 3.3V, T
Ω,
C
C
ONDITIONS
Figure 15
Figure 17
Figure 15
Figure 17
L
L
L
L
A
L
L
= 50pF,
= 50pF
= 50pF,
= 50pF
= 50pF,
= 50pF,
= +25°C.
SP338E