SP490CS Sipex Corporation, SP490CS Datasheet
SP490CS
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SP490CS Summary of contents
Page 1
... Vcc GND 4 SP490 SP490/491DS/ REB GND 6 GND 7 SP490/491 Full Duplex RS-485 Transceivers 1 SP490/SP491 14 Vcc SP491 © Copyright 2000 Sipex Corporation ...
Page 2
... SKEW DPLH DPHL From 10 DIFF 100pF; see figures 3 and -7V V 12V -4mA +200mV +4mA -200mV O ID -7V V 12V 12V - © Copyright 2000 Sipex Corporation ...
Page 3
... PLH DIFF 100pF; Figures 3 & PHL DIFF = 100pF; Figures 3 & 100pF; DIFF L1 L2 Figures 3 & Test Point 500 © Copyright 2000 Sipex Corporation ...
Page 4
... 2.3V Output normally LOW Output normally HIGH 2. INPUT 1.5V OUTPUT f = 1MHz; t < 10ns; t < 10ns R F SP490/491 Full Duplex RS-485 Transceivers 4 < 10ns 1.5V t PHL 1/2V O DPHL 0.5V 0. 1.5V t PLH © Copyright 2000 Sipex Corporation ...
Page 5
... 100pF; see figures and 7; S closed 2 = 100pF; see figures and 7; S closed 15pF; see figures and 7; S closed 15pF; see figures and 7; S closed 2 © Copyright 2000 Sipex Corporation ...
Page 6
... L1 L2 Figures 3 & 15pF; Figures 2 and 9; S closed 15pF; Figures 2 and 9; S closed 15pF; Figures 2 and 9; S closed 15pF; Figures 2 and 9; S closed RL 2 REB 1.5V < 10ns t LZ 0.5V 0. © Copyright 2000 Sipex Corporation ...
Page 7
... A logic low on REB (pin 3) of the SP491 will enable the differential receiver. A logic high on REB across the (pin 3) of the SP491 will tri-state the receiver. SP490/491 Full Duplex RS-485 Transceivers 7 © Copyright 2000 Sipex Corporation ...
Page 8
... L 0.016/0.050 0.016/0.050 (0.406/1.270) (0.406/1.270) Ø 0°/8° (0°/8°) SP490/491 Full Duplex RS-485 Transceivers 8 Ø L 14–PIN 0°/8° (0°/8°) © Copyright 2000 Sipex Corporation ...
Page 9
... SP490/491 Full Duplex RS-485 Transceivers 9 DUAL–IN–LINE (NARROW) C Ø 0.300 BSC A (7.620 BSC) 14–PIN 0.115/0.195 0.014/0.022 0.045/0.070 0.008/0.014 0.735/0.775 0.300/0.325 0.240/0.280 0.115/0.150 0°/ 15° (0°/15°) © Copyright 2000 Sipex Corporation ...
Page 10
... Model SP490CN. ..................................................................................... 0˚C to +70˚C ............................................................................... 8-Pin NSOIC SP490CS ...................................................................................... 0˚C to +70˚C ................................................................................. 8-Pin DIP SP490EN ..................................................................................... -40˚C to +85˚C ............................................................................. 8-Pin NSOIC SP490ES ..................................................................................... -40˚C to +85˚C ............................................................................... 8-Pin DIP SP491CN ...................................................................................... 0˚C to +70˚C .............................................................................. 14-Pin NSOIC SP491CS ...................................................................................... 0˚C to +70˚C ................................................................................ 14-Pin DIP SP491EN ..................................................................................... -40˚C to +85˚C ............................................................................ 14-Pin NSOIC SP491ES ..................................................................................... -40˚ ...