SP490CS Sipex Corporation, SP490CS Datasheet

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SP490CS

Manufacturer Part Number
SP490CS
Description
Full duplex RS-485 transceivers
Manufacturer
Sipex Corporation
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SP490CS
Manufacturer:
SIPEX
Quantity:
5 510
Part Number:
SP490CS-L
Manufacturer:
TI
Quantity:
2 000
SP490/491DS/09
DESCRIPTION…
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 plastic DIP and 8-pin NSOIC
packages for operation over the commercial and industrial temperature ranges. The SP491
is available in 14-pin DIP and 14-pin NSOIC packages for operation over the commercial and
industrial temperature ranges.
+5V Only
Low Power BiCMOS
Driver/Receiver Enable (SP491)
RS-485 and RS-422 Drivers/Receivers
Pin Compatible with LTC490 and
SN75179 (SP490)
Pin Compatible with LTC491 and
SN75180 (SP491)
GND
Vcc
R
D
4
1
2
3
SP490
D
R
Full Duplex RS-485 Transceivers
6
SP490/491 Full Duplex RS-485 Transceivers
8
7
5
A
B
Z
Y
1
GND
GND
REB
NC
DE
R
D
1
2
3
4
5
6
7
SP491
SP490/SP491
D
R
© Copyright 2000 Sipex Corporation
14
13
12
11
10
9
8
Vcc
NC
A
B
Z
Y
NC

Related parts for SP490CS

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˚ ...

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