SP491EN Sipex Corporation, SP491EN Datasheet
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SP491EN
Manufacturer Part Number
SP491EN
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 SP491EN
Case
SOP14
Date_code
07+
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SP491EN
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