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SP332
RS-232/RS-485 Multi-Mode Serial Transceiver
Description
The SP332 is a monolithic device that contains both RS-232 and RS-485 line drivers and receivers. The configuration of the SP332 can be changed at any time by changing the logic state of two control pins. The device also includes a loop back function which internally connects driver outputs to receiver inputs for a chip self test. An MaxLinear-patented charge pump allows 5V-only operation.
FEATURES ■■ 5V only single supply operation ■■ Software programmable RS-232 or
RS-485 selection ■■ 4 drivers, 4 receivers RS-232 ■■ 2 drivers, 2 receivers RS-485 ■■ Loop back function for self test ■■ 28-pin WSOIC package
Typical Applications Circuit
0.1µF
0.