SP491CN Sipex Corporation, SP491CN Datasheet
SP491CN
Manufacturer Part Number
SP491CN
Description
Manufacturer
Sipex Corporation
Datasheets
1.SP491ES.pdf
(12 pages)
2.SP491EN.pdf
(12 pages)
3.SP491EN.pdf
(12 pages)
4.SP491EN.pdf
(10 pages)
Specifications of SP491CN
Date_code
04
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SP491CN
Manufacturer:
SIPEX
Quantity:
2 912
Company:
Part Number:
SP491CN
Manufacturer:
SIPEX
Quantity:
1 000
Company:
Part Number:
SP491CN
Manufacturer:
SIPEX
Quantity:
427
Part Number:
SP491CN
Manufacturer:
SIPEX
Quantity:
20 000
Company:
Part Number:
SP491CN-L
Manufacturer:
SIPEX
Quantity:
1 695
Part Number:
SP491CN-L
Manufacturer:
SIPEX
Quantity:
20 000
Part Number:
SP491CN-L/TR
Manufacturer:
SIPEX
Quantity:
20 000
Now Available in Lead Free Packaging
Date: 02/24/05
FEATURES
■ +5V Only
■ Low Power BiCMOS
■ Driver/Receiver Enable (SP491)
■ RS-485 and RS-422 Drivers/Receivers
■ Pin Compatible with LTC490 and
■ Pin Compatible with LTC491 and
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.
SN75179 (SP490)
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 2005 Sipex Corporation
BLOCK DIAGRAMS
DESCRIPTION
14
13
12
11
10
9
8
Vcc
NC
A
B
Z
Y
NC