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SP486E Datasheet(PDF) 4 Page - Sipex Corporation |
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SP486E Datasheet(HTML) 4 Page - Sipex Corporation |
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4 / 11 page  4 SP486E/487EDS/06 SP486E/487E Enhanced Quad RS-485/RS-422 Line Drivers © Copyright 2000 Sipex Corporation PINOUT — SP487E 1 2 3 4 SP487E DI1 DO1A DO1B EN1/EN2 DO2B DO2A DI2 GND VCC DI4 DO4A DO4B EN3/EN4 DO3B DO3A DI3 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 SP487E PINOUT Pin 1 — DI 1 — Driver 1 Input — If Driver 1 output is enabled, logic 0 on DI 1 forces driver output DO 1A low and DO1B high. A logic 1 on DI 1 with Driver 1 output enabled forces driver DO 1A high and DO1B low. Pin 2 — DO 1A — Driver 1 output A. Pin 3 — DO 1B — Driver 1 output B. Pin 4 — EN 1/EN2 — Driver 1 and 2 Output Enable. Please refer to SP487E Truth Table (2). Pin 5 — DO 2B — Driver 2 output B. Pin 6 — DO 2A — Driver 2 output A. Pin 7 — DI 2 — Driver 2 Input — If Driver 2 output is enabled, logic 0 on DI 2 forces driver output DO 2A low and DO2B high. A logic 1 on DI 2 with Driver 2 output enabled forces driver DO 2A high and DO2B low. Pin 8 — GND — Digital Ground. Pin 9 — DI 3 — Driver 3 Input — If Driver 3 output is enabled, logic 0 on DI 3 forces driver output DO 3A low and DO3B high. A logic 1 on DI 3 with Driver 3 output enabled forces driver DO 3A high and DO3B low. Pin 10 — DO 3A — Driver 3 output A. INPUT ENABLES OUTPUTS DI EN EN OUTA OUTB HH X H L LH X L H HX L H L LX L L H X L H Hi–Z Hi–Z Table 1. SP486E Truth Table INPUT ENABLES OUTPUTS DI EN1/EN2 or EN3/EN4 OUTA OUTB HHH L LH L H X L Hi–Z Hi–Z Table 2. SP487E Truth Table Pin 11 — DO 3B — Driver 3 output B. Pin 12 — EN 3/EN4 — Driver 3 and 4 Output Enable. Please refer to SP487E Truth Table (2). Pin 13 — DO 4B — Driver 4 output B. Pin 14 — DO 4A — Driver 4 output A. Pin 15 — DI 4 — Driver 4 Input — If Driver 4 output is enabled, logic 0 on DI 4 forces driver output DO 4A low and DO4B high. A logic 1 on DI 4 with Driver 3 output enabled forces driver DO 4A high and DO4B low. Pin 16 — Supply Voltage V CC — 4.75V ≤ VCC ≤ 5.25V. FEATURES… The SP486E and SP487E are low–power quad differential line drivers meeting RS-485 and RS-422 standards. The SP486E features active high and active low common driver enable controls; the SP487E provides independent, active high driver enable controls for each pair of drivers. The driver outputs are short–circuit limited to 200mA. Data rates up to 10Mbps are supported. Both are available in 16–pin plastic DIP and SOIC packages. |
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