SP490EEP
Enhanced Full Duplex RS-485 Transceivers

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Datasheet

Size: 109.81KB
Page: 12
PDF: SP490EEP.pdf
  • Description:
    Enhanced Full Duplex RS-485 Transceivers
  • MFG:
    SIPEX [Sipex Corporation]
 

Abstract


1
SP490EDS/14 SP490E Enhanced Full Duplex RS-485 Transceivers ? Copyright 2000 Sipex Corporation
SP490E/SP491E
Enhanced Full Duplex RS-485 Transceivers
n +5V Only
n Low Power BiCMOS
n Driver/Receiver Enable (SP491E)
n RS-485 and RS-422 Drivers/Receivers
n Pin Compatible with LTC490 and
SN75179 (SP490E)
n Pin Compatible with LTC491 and
SN75180 (SP491E)
n Improved ESD Specifications:
±15kV Human Body Model
±15kV IEC1000-4-2 Air Discharge
±8kV IEC1000-4-2 Contact Discharge
DESCRIPTION…
The SP490E is a low power differential line driver/receiver meeting RS-485 and RS-422
standards up to 10Mbps. The SP491E is identical to the SP490E with the addition of driver
and receiver tri-state enable lines. Both products feature ±200mV receiver input sensitivity,
over wide common mode range. The SP490E is available in 8-pin plastic DIP and 8-pin NSOIC
packages for operation over the commercial and industrial temperature ranges. The SP491E
is available in 14-pin DIP and 14-pin NSOIC packages for operation over the commercial and
industrial temperature ranges.
6
1
2
3
4
5
7 8
Vcc
GND
R
D
A
B
Z
Y
R
D
9
10
11
12
13
14NC
REB
DE
GND
NC
NC
1
2
3
4
5
6
7
8
R
D
Vcc
GND
R
D
A
B
Z
Y
SP490E SP491E
?

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