SP490ECP Exar Corporation, SP490ECP Datasheet

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SP490ECP

Manufacturer Part Number
SP490ECP
Description
Manufacturer
Exar Corporation
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SP490ECP
Manufacturer:
SIPEX
Quantity:
3 942
Part Number:
SP490ECP-L
Quantity:
2 000
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.
SP490EDS/14
+5V Only
Low Power BiCMOS
Driver/Receiver Enable (SP491E)
RS-485 and RS-422 Drivers/Receivers
Pin Compatible with LTC490 and
SN75179 (SP490E)
Pin Compatible with LTC491 and
SN75180 (SP491E)
Improved ESD Specifications:
Enhanced Full Duplex RS-485 Transceivers
15kV Human Body Model
15kV IEC1000-4-2 Air Discharge
8kV IEC1000-4-2 Contact Discharge
GND
Vcc
R
D
4
1
2
3
®
SP490E
D
R
SP490E Enhanced Full Duplex RS-485 Transceivers
6
8
7
5
A
B
Z
Y
1
Now available in Lead Free
GND
GND
REB
NC
DE
R
D
SP490E/SP491E
1
2
3
4
5
6
7
SP491E
D
R
© Copyright 2000 Sipex Corporation
14
13
12
11
10
9
8
Vcc
NC
A
B
Z
Y
NC

Related parts for SP490ECP

SP490ECP Summary of contents

Page 1

Enhanced Full Duplex RS-485 Transceivers +5V Only Low Power BiCMOS Driver/Receiver Enable (SP491E) RS-485 and RS-422 Drivers/Receivers Pin Compatible with LTC490 and SN75179 (SP490E) Pin Compatible with LTC491 and SN75180 (SP491E) Improved ESD Specifications: 15kV Human Body Model 15kV ...

Page 2

ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions ...

Page 3

SPECIFICATIONS (continued and unless otherwise noted. MIN MAX CC PARAMETERS MIN. SP490E RECEIVER AC Characteristics Maximum Data Rate Receiver Input to Output Receiver Input to Output Diff. Receiver Skew PLH ...

Page 4

DRIVER OUTPUT Y + DIFFERENTIAL OUTPUT – – SKEW = DPLH - DPHL Figure 5. Driver Propagation Delays +3V 1. ...

Page 5

ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions ...

Page 6

SPECIFICATIONS (continued and unless otherwise noted. MIN MAX CC PARAMETERS MIN. SP491E RECEIVER DC Characteristics Differential Input Threshold -0.2 Input Hysteresis Output Voltage HIGH Output Voltage LOW Three State (high impedance) Output Current ...

Page 7

FEATURES The SP490E and SP491E are full-duplex dif- ferential transceivers that meet the requirements of RS-485 and RS-422. Fabricated with a Sipex proprietary BiCMOS process, both products require a fraction of the power of older bipolar designs. THEORY OF OPERATION ...

Page 8

SW1 SW1 SW1 DC Power Source Figure 10. ESD Test Circuit for IEC1000-4-2 There are different methods of ESD testing applied: a) MIL-STD-883, Method 3015.7 b) IEC1000-4-2 Air-Discharge c) IEC1000-4-2 Direct Contact The Human ...

Page 9

The high energy potential on the person discharges through an arcing path to the ...

Page 10

D1 = 0.005" min. (0.127 min 0.100 BSC (2.540 BSC) ALTERNATE END PINS (BOTH ENDS) DIMENSIONS (Inches) Minimum/Maximum 8–PIN (mm) 0.115/0.195 A2 (2.921/4.953) 0.014/0.022 B (0.356/0.559) B1 0.045/0.070 (1.143/1.778) C 0.008/0.014 (0.203/0.356) 0.355/0.400 D (9.017/10.160) ...

Page 11

DIMENSIONS (Inches) Minimum/Maximum 8–PIN (mm) A 0.053/0.069 (1.346/1.748) A1 0.004/0.010 (0.102/0.249 B 0.014/0.019 (0.35/0.49) D 0.189/0.197 (4.80/5.00) E 0.150/0.157 (3.802/3.988) e 0.050 BSC (1.270 BSC) H 0.228/0.244 (5.801/6.198) h 0.010/0.020 (0.254/0.498) L 0.016/0.050 (0.406/1.270) Ø ...

Page 12

... Model SP490ECN. ...................................................... 0˚C to +70˚C ..................................................... 8-Pin NSOIC SP490ECP ........................................................ 0˚C to +70˚C ........................................................... 8-Pin DIP SP490EEN. ..................................................... -40˚C to +85˚C ................................................... 8-Pin NSOIC SP490EEP ...................................................... -40˚C to +85˚C ......................................................... 8-Pin DIP SP491ECN ....................................................... 0˚C to +70˚C ................................................... 14-Pin NSOIC SP491ECP ........................................................ 0˚C to +70˚C ......................................................... 14-Pin DIP SP491EEN. ..................................................... -40˚C to +85˚C ................................................. 14-Pin NSOIC SP491EEP ...................................................... -40˚ ...

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