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Part Name
Description
SP339ECR1-L/TR View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
SP339ECR1-L/TR
RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
Exar Corporation
'SP339ECR1-L/TR' PDF : 21 Pages
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SP339E
REV. 1.0.4
RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
F
IGURE
14. RS-485/422 D
RIVER
O
UTPUT
E
NABLE
/D
ISABLE
T
IMES
Testing B: Tx Input = 0V
Tx
Testing A: Tx Input = V
CC
Tx Enable
B
R
L
A
V
OUT
C
L
3V
Tx Enable
0V
V
OUT
V
OH
V
OL
1.5V
t
DZH
V
OH
+ V
OL
2
Testing B: Tx Input = V
CC
Tx
Testing A: Tx Input = 0V
Tx Enable
1.5V
t
DHZ
V
OH
- 0.25V
V
CC
B
R
L
V
OUT
C
L
A
3V
Tx Enable
0V
V
OUT
V
OH
V
OL
1.5V
t
DZH
V
OH
+ V
OL
2
1.5V
t
DHZ
V
OL
+ 0.25V
19
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