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SP3087EEN Datasheet(PDF) 3 Page - Sipex Corporation |
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SP3087EEN Datasheet(HTML) 3 Page - Sipex Corporation |
3 / 25 page 3 Rev M 2/22/2007 SP3080E-3088E Advanced RS485 Transceivers © Copyright 2007 Sipex Corporation PIN ASSIGNMENTS Pin Number Pin Name Pin Function Full-Duplex Half - Duplex SP3080E SP3081E SP3082E SP3083E SP3084E SP3085E SP3086E SP3087E SP3088E 2 2 1 RO Receiver Output. When RE is low and if (A – B) ≥ -40mV, RO is high. If (A – B) ≤ - 200mV, RO is low. 3 - 2 RE REREE Receiver Output Enable. When RE is low, RO is enabled. When RE is high, RO is high impedance. Drive RE high and DE low to enter shutdown mode. RE is a hot-swap input. 4 - 3 DE Driver Output Enable. When DE is high, outputs are enabled. When DE is low, outputs are high impedance. Drive DE low and RE high to enter shutdown mode. DE is a hot-swap input. 5 3 4 DI Driver Input. With DE high, a low level on DI forces non-inverting output low and inverting output high. A high level on DI forces non- inverting output high and inverting output low. 6, 7 4 5 GND Ground 9 5 - Y Non-inverting Driver Output 10 6 - Z Inverting Driver Output 11 7 - B Inverting Receiver Input - - 7 B Inverting Receiver Input and Inverting Driver Output 12 8 - A Non-inverting Receiver Input - - 6 A Non-inverting Receiver Input and Non-inverting Driver Output 14 1 8 VCC Positive Supply VCC. Bypass to GND with a 0.1uF capacitor. 1, 8, 13 - - NC No Connect, not internally connected Note: On 14-pin packages connect both pins 6 and 7 to Ground. |
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