SP490 - MaxLinear

SP490 Full-Duplex RS-485 Transceivers

The SP490 is a low power differential line driver/receiver meeting RS-485 and RS-422 standards up to 5Mbps. The SP491 is identical to the SP490 with the addition of driver and receiver tri-state enable lines. Both products feature ±200mV receiver input sensitivity, over wide common mode range. The SP490 is available in 8-pin NSOIC packages for operation over.

Features

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■ 5V only
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■ Low power BiCMOS
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■ Driver/receiver enable (SP491)
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■ RS-485 and RS-422 drivers/receivers
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■ Pin compatible with LTC490 and SN75179 (SP490)
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■ Pin compatible with LTC491 and SN75180 (SP491) Ordering Information - Back Page Block Diagrams VCC 1 R2 R D3 GND 4 D SP490 8A 7B 6Z 5Y NC 1 R2 REB DE 3 4 D5 6 GND GND 7 R D SP491 14 13 VCC NC 12 A 11 B 10 Z 9Y 8 NC .