sp337e Exar Corporation, sp337e Datasheet - Page 4

• 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
Pin Assignments
they do not exceed Vcc or go below ground. Some of these pins have a pull-up to Vcc which
remains active in both RS-232 and RS-485 mode, but is disabled in the SP337EU shutdown mode.
*
P
Pins marked with an X in the above table are ignored or "don’t care" in the listed mode, provided
27
28
IN
#
P
IN
TI1
TI2
N
AME
Input
Input
T
YPE
This pin has a 400k pull-up to Vcc in both RS-232 and RS-485 modes.
This pin has a 400k pull-up to Vcc in both RS-232 and RS-485 modes.
The pull-up is disabled in the SP337EU shutdown mode.
The pull-up is disabled in the SP337EU shutdown mode.
T1 Driver Input
T2 Driver Input
RS-232
4
D
ESCRIPTION
RS-485/RS-422
T1 Driver Input
X*
REV. 1.0.2