SP306 Datasheet, PDF (1/6 Pages) Sipex Corporation – RS-422/RS-423 Line Drivers/Receivers

Corporation
SIGNAL PROCESSING EXCELLENCE
SP306
RS-422/RS-423 Line Drivers/Receivers
s Single chip serial transceiver supports
RS-422 or RS-423 interfaces
s Programmable Selection of Interface
s Two Full–Duplex Channels of Either
Interface
s Software–Selectable Mode
s Loopback for Self–Testing
s Short–Circuit Protected
s Surface Mount Packaging
DESCRIPTION…
The SP306 is a single chip device that offers both RS-422 and RS-423–type serial interfaces. The
device can be programmed to provide two full–duplex channels of either RS-422 or RS-423 via
two mode control pins. The SP306 also features a loopback function that can be activated in any
operating mode. The SP306 is available in a 28–pin SOIC package for operation over the
commercial temperature range.
SUPPLY
+5V +12V –12V
28 1 15
V_CC V_DD V_EE
7
SELECT A
8 _{SELECT B}
22 _LOOPBACK
23
T_INA
T₁
20
T_INB
T₂
SP306
26
R_OUTA
R₁
6
T_OUTA1
5
T_OUTA2
9 _TOUTB1
10 _TOUTB2
2 _RINA2
3 _RINA1
17
R_OUTB
R₂
14 _GND
13 _RINB2
12 _RINB1
Corporation
SIGNAL PROCESSING EXCELLENCE
89