sp337e Exar Corporation, sp337e Datasheet - Page 6

• Manufacturer Part Number: sp337e
• Description: 3.3v To 5v Rs-232/rs-485/rs-422 Multiprotocol Transceiver
• Manufacturer: Exar Corporation

SP337E
3.3V TO 5V RS-232/RS-485/RS-422 MULTIPROTOCOL TRANSCEIVER
U
T
SINGLE-ENDED RECEIVER INPUTS (RS-232)
DIFFERENTIAL RECEIVER INPUTS (RS-485 / RS-422)
SINGLE-ENDED DRIVER OUTPUTS (RS-232)
DIFFERENTIAL DRIVER OUTPUTS (RS-485 / RS-422)
TIMING CHARACTERISTICS
YPICAL VALUES ARE AT
NLESS OTHERWISE NOTED
S
ΔV
ΔV
ΔV
YMBOL
I
I
V
V
V
OSS
R
OSD
I
V
I
I
OZ
IN
OD
OC
TH
O
IN
O
OD
OC
TH
Receiver Output ShortCircuit Current
Receiver Output Leakage Current
Input Voltage Range
Input Threshold Low
Input Threshold HIGH
Input Hysteresis
Input Resistance
Receiver Input Resistance
Receiver Differential Threshold
Receiver Input Hysteresis
Input Current
Output Voltage Swing
Short Circuit Current
Power Off Impedance
Differential Driver Output (Tx_Out)
Change In Magnitude of
Differential Output Voltage
Driver CommonMode Output Voltage
Change In Magnitude of
Common Mode Output Voltage
Driver Output Short Circuit Current
Output Leakage Current
V
CC
: V
= 3.3V, TA = +25
CC
P
= +3.3V +/-5%
ARAMETERS
O
C.
OR
+5.0V +/-5%, C1-C4 = 0.1μF; TA = TMIN
+/-5.0
-200
M
-0.2
300
-15
0.6
0.8
1.5
1.5
1.5
96
3
2
IN
.
6
+/-0.1
+/-5.4
+/-40
TYP.
-125
10M
1.2
1.5
1.5
1.8
0.5
30
5
+/-250
+/-100
+/-1.5
+/-7.0
M
+/-65
+/-60
-100
+0.2
+15
125
Vcc
Vcc
Vcc
Vcc
-50
2.0
2.4
0.2
AX
7
3
.
U
mA
mV
mV
mA
mA
k
k
μ
μ
μ
μ
TO
NITS
W
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Ω
Ω
A
A
A
A
TMAX.
0 < Vo < Vcc
Receivers Disabled
V
V
V
V
-7V ≤ V
V
V
V
Output Loaded with 3k
No Load Output
V
Vcc = 0V; V
R
R
V
V
R
R
R
V = +12V to -7V, Figure 4
TXEN = 0V or Shutdown,
V
CC
CC
CC
CC
CM
IN
IN
O
CM
CM
O
L
L
L
L
L
= 100
= 54
= 54
= 54
= 54
= 0V
= +12V to -7V
= 12V
= -7V
= 3.3V
= 5.0V
= 3.3V
= 5.0V
= 0V
= -7V, Figure 3
= +12V, Figure 3
CM
Ω
Ω
Ω
Ω
Ω
(RS-485), Figure 2
or 100
or 100
or 100
C
≤
(RS-422), Figure 2
O
ONDITIONS
+
= +/-2V
12V
Ω
Ω
Ω
, Figure 2
, Figure 2
, Figure 2
REV. 1.0.2
Ω
to Gnd