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SP489ACP Datasheet(PDF) 3 Page - Sipex Corporation |
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SP489ACP Datasheet(HTML) 3 Page - Sipex Corporation |
3 / 7 page SP488A/489ADS/07 SP488A/489A High Speed Quad RS-485/RS-422 Line Receivers © Copyright 2000 Sipex Corporation 3 AC PARAMETERS V CC = 5V±5%; typicals at 25°C; 0°C ≤ TA ≤ +70°C unless otherwise noted. PARAMETER MIN. TYP. MAX. UNIT CONDITIONS PROPAGATION DELAY Receiver Input to Output C L = 15pF; Figure 1, 3 Low to HIGH (t PLH) TBD ns High to LOW (t PHL) TBD ns Differential Receiver Skew (t SKD) TBD ns Receiver Rise Time (t R) 10% to 90% SP488A TBD ns SP489A TBD ns Receiver Fall Time (t F) 90% to 10% SP488A TBD ns SP489A TBD ns RECEIVER ENABLE To Output HIGH TBD ns C L = 15pF; Figures 2 and 4 (S2 closed) To Output LOW TBD ns CL = 15pF; Figures 2 and 4 (S1 closed) RECEIVER DISABLE From Output LOW TBD ns CL = 15pF; Figures 2 and 4 (S1 closed) From Output HIGH TBD ns CL = 15pF; Figures 2 and 4 (S2 closed) Figure 2. Receiver Enable/Disable Timing 3V 0V 5V VOH 0V Output normally low F = 1MHZ: tr < 10ns: tf < 10ns tZL tLZ EN VOL 1.5V 1.5V 1.5V 0.5V 1.5V 0.5V Output normally high RO tZH RO tHZ Figure 1. Receiver Propagation Delays F = 1MHZ: tr < 10ns: tf < 10ns tPHL tPLH VOL 0V 0V 1.5V RO VOH 1.5V –VOD +VOD Input A–B |
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