SP339E
RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
REV. 1.0.0
ELECTRICAL CHARACTERISTICS (Continued)
U
NLESS OTHERWISE NOTED
:
V
CC
= +3.3V ±5% or +5.0V ±5%, C1-C4 = 0.1µF; T
A
= T
MIN
to T
MAX
. Typical values are at V
CC
= 3.3V, T
A
= +25°C.
S
YMBOL
P
ARAMETERS
M
IN
.
T
YP
.
M
AX
.
U
NITS
C
ONDITIONS
SINGLE-ENDED RECEIVER INPUTS (RS-232)
V
IN
V
IL
Input Voltage Range
Input Threshold Low
-15
0.6
0.8
1.2
1.5
1.5
1.8
0.3
3
5
7
2.0
2.4
+15
V
V
V
V
V
V
kΩ
-15V
≤
V
IN
≤
+15V
V
CC
= 3.3V
V
CC
= 5.0V
V
CC
= 3.3V
V
CC
= 5.0V
V
IH
V
HYS
R
IN
Input Threshold High
Input Hysteresis
Input Resistance
SINGLE-ENDED DRIVER OUTPUTS (RS-232)
V
O
I
SC
R
OFF
Output Voltage Swing
Short Circuit Current
Power Off Impedance
300
10M
±5.0
±5.5
±7.0
±60
V
V
mA
Ω
Output loaded with 3kΩ to Gnd
No load output
V
O
= 0V
V
CC
= 0V, V
O
= ±2V
6
EXAR [ EXAR CORPORATION ]
