Designing with the
SP505, SP506, & SP507
family of multi-protocol transceivers are
designed for applications using serial ports in
networking equipment such as routers, DSU/CSUs,
multiplexors, access devices, and other networking
equipment. This application note discusses and
illustrates various configuration options, and other
helpful hints about designing with the
These one-chip serial port transceiver products
supports seven popular serial interface standards for
Wide Area Network (WAN) connectivity. With a
built-in DC-DC charge pump converter, the
operate on +5V only. The seven
drivers and seven receivers can be configured via
software for RS-232, X.21, EIA-530, EIA-530A,
RS-449, V.35, and V.36 interface modes at any time.
Unlike other discrete solutions or other multi-chip
no additional external circuitry for compliant
operation other than the charge pump capacitors.
All necessary resistor termination networks are
integrated within the
are switchable when in EIA-530, EIA-530A, RS-449,
V.35, V.36, and X.21 modes.
driver disable for easy DTE/DCE configurations.
offers four receiver enable lines for even
easier DTE/DCE programmability. The newer
is pin compatible with the
improved AC performance. Refer to the
datasheets for electrical parameter and
SP505, SP506, SP507 Application Note
© Copyright 2000 Sipex Corporation