sp337e Exar Corporation, sp337e Datasheet - Page 10

• 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
F
F
F
IGURE
IGURE
IGURE
7. RS-485 D
8. RS-485 D
9. RS-485 D
OUT
DE
RIVER
RIVER
RIVER
E
E
E
NABLE AND
GENERATOR
NABLE AND
NABLE AND
GENERATOR
Vcc
V
t
DZH
OM
0
D
D
D
ISABLE
ISABLE
ISABLE
= (V
DI
DI
50Ω
50Ω
OL
Tx
Tx
T
T
T
+ Vcc)/2
EST
EST
IMING
A
B
A
B
10
C
C
C
C
L
IRCUIT
IRCUIT
D
S1
L
= 50pF
S1
= 50pF
IAGRAM
2
Vcc
R
OUT
R
L
t
L
= 500Ω
DHZ
OUT
= 500Ω
Vcc/2
0.25V
Vcc
0
0
REV. 1.0.2