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SP3488CP Datasheet(PDF) 1 Page - Sipex Corporation |
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SP3488CP Datasheet(HTML) 1 Page - Sipex Corporation |
1 / 9 page 1 10/16/02 SP3488/3489 Low Power Quad RS-485/422 Line Receivers © Copyright 2002 Sipex Corporation ■ RS-485 or RS-422 Quad Differential Line Receivers ■ Operates from a single +3.3V supply ■ Interoperable with +5.0V logic ■ Tri-state Output Control ■ -7V to +12V Common-Mode Input Voltage Range ■ Common Driver Enable Control (SP3488) ■ Independent Driver Enable Controls for each pair of Drivers (SP3489) ■ Compatibility with LTC488 and SN75173 (SP3488) ■ Compatibility with LTC489 and SN75175 (SP3489) DESCRIPTION… The SP3488 and the SP3489 are +3.3V low power quad line receivers that meet the specifications of the RS-485 and RS-422 serial protocols. These devices are pin-to-pin compatible with Sipex's SP488 and SP489 devices as well as popular industry standards. The SP3488 and SP3489 feature Sipex's BiCMOS process allowing low power operation without sacrificing performance. The SP3488 and SP3489 meet the electrical specifications of RS-485 and RS-422 serial protocols up to 10Mbps under load. The SP3488 features a common receiver enable control. The SP3489 provides independent receiver enable controls for each pair of receivers. Both devices feature tri-state outputs and a -7V to +12V common-mode input range. The receivers have a fail-safe feature which forces a logic "1" output when receiver inputs are left floating. SP3488 and SP3489 SP3488 RI1B RI1A RO1 EN RO2 RI2A RI2B GND VCC RI4B RI4A RO4 EN RO3 RI3A RI3B 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1 4 3 2 SP3489 RI1B RI1A RO1 EN1/EN2 RO2 RI2A RI2B GND VCC RI4B RI4A RO4 EN3/EN4 RO3 RI3A RI3B 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1 4 3 2 +3.3V Low Power Quad RS-485/RS-422 Line Receivers ® |
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