SP3075E Datasheet PDF - Exar
Part Number | SP3075E | |
Description | RS-485/RS422 Transceivers | |
Manufacturers | Exar | |
Logo | ||
There is a preview and SP3075E download ( pdf file ) link at the bottom of this page. Total 20 Pages |
Preview 1 page No Preview Available ! SP3070E - SP3078E Family
±15kV ESD-Protected, 3.3V, 1/8 Load, Failsafe
RS-485/RS422 Transceivers
Features
■ ±15kV ESD protection for RS485 pins
■ 3.3V low-power operation
■ Advanced Receiver-failsafe protection for
open, shorted or terminated lines
■ Up to 256 Transceivers may share Bus
■ Very low load for 8x greater fanout
■ Hot Swap glitch protection RE and DE
■ Thermal shutdown protects against driver
contention
■ Available in three industry standard footprints
■ SP3070E, 3073 and 3076 in Full-Duplex (14 pin)
■ SP3071E, 3074 and 3077 in Full-Duplex (8 pin)
■ SP3072E, 3075 and 3078 in Half-Duplex (8 pin)
■ Three applications-optimized speed grades
■ SP3070E-72E: 250kbps slew-limited
■ SP3073E-75E: 500kbps slew-limited
■ SP3076E-78E: 16Mbps high speed
■ Small form factor SO-narrow packages
■ Industrial (-40 to +85ºC) and Extended
(-40 to +125ºC) temperature grades
RO 1
RE 2
DE 3
DI 4
8 PIN NSOIC
SP3072E
SP3075E
SP3078E
Half Duplex
8 Vcc
7B
6A
5 GND
Vcc 1
RO 2
DI 3
GND 4
8 PIN NSOIC
SP3071E
SP3074E
SP3077E
Full Duplex
8A
7B
6Z
5Y
NC 1
RO 2
RE 3
DE 4
DI 5
GND 6
GND 7
14 PIN NSOIC
SP3070E
SP3073E
SP3076E
Full Duplex
14 Vcc
13 NC
12 A
11 B
10 Z
9Y
8 NC
Now Available in Lead Free Packaging
applications
■ Industrial Control, Utility Meters Building Automation, Instrumentation, Point of Sale
DESCRIPTION
The SP3070E-3078E differential line transceivers are suitable for bidirectional communication
on balanced multipoint bus transmission lines and comply with both RS485 and RS422 EIA
Standards. Each device consists of a differential driver and differential receiver. All devices
operate from a 3.3V power supply.
High receiver input impedance allows a large number of transceivers to share a common
data bus while maintaining signal margin and without excessive loading or use of expensive
repeaters. The high impedance driver output is maintained over the entire common-mode
voltage range from -7 to +12V. Receivers will failsafe to logic 1 output when inputs are open,
shorted or terminated. Drivers include built-in short-circuit protection and a thermal-overload
shutdown to protect against excessive power dissipation from bus contention or cable faults.
All RS485 receiver inputs and driver outputs are ESD protected up to ±15kV (Air-Gap and
Human Body Model) and up to ±8kV Contact discharge (IEC 61000-4-2). The SP3070E-
SP3078E devices may not achieve optimal transmit performance if the connected receiver
includes a biasing network to 5.0V without a termination resistor. Please see Exar Application
Note ANI#21 for further details.
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP3070E-SP3078E_102_120210
|
|
DRIVER SWITCHING CHARACTERISTICS
Unless otherwise noted VCC = +3.3 ±0.3V, ambient temperature TMIN < TA < TMAX. Typical values are at VCC = 3.3,
ambient temperature TA = +25ºC.
SP3070E, SP3071E & SP3072E Driver Switching Characteristics
DRIVER CHARACTERISTICS:
Conditions
Min. Typ. Max. Unit
Data Signaling Rate
Duty Cycle 40 to 60%
250
Kbps
Driver Propagation Delay (tPHL, tPLH)
Driver Output Rise/Fall Time (tR, tF)
RL = 54Ω, CL = 50pF,
Figure 2 & 3
250
350
1500 ns
1600 ns
Driver Differential Skew (tPLH – tPHL)
200 ns
Driver Enable to Output High (tZH)
Driver Enable to Output Low (tZL)
Driver Disable from Output High (tHZ)
RL = 500Ω, CL = 50pF,
Figure 4 & 5
2500 ns
2500 ns
100 ns
Driver Disable from Output Low (tLZ)
100 ns
Driver Enable from Shutdown to Output
High (t )ZH(SHDN)
Figure 4
5500 ns
Driver Enable from Shutdown to Output
Low (t )ZL(SHDN)
Figure 5
5500 ns
Time to Shutdown (tSHDN)
50 200 600 ns
RECEIVER SWITCHING CHARACTERISTICS
Unless otherwise noted VCC = +3.3 ±0.3V, ambient temperature TMIN < TA < TMAX. Typical values are at VCC = 3.3,
ambient temperature TA = +25ºC.
SP3070E, SP3071E & SP3072E Receiver Switching Characteristics
RECEIVER CHARACTERISTICS:
Conditions
Min. Typ. Max. Unit
Data Signaling Rate
Duty Cycle 40 to 60% 250
Kbps
Receiver Propagation Delay (tPLH, tPHL)
Propagation Delay Skew (tPLH, tPHL)
Cl=15pF, Figure 6 & 7
200 ns
30 ns
Receiver Enable to Output High (tZH)
Figure 8
50 ns
Receiver Enable to Output Low (tZL)
Figure 8
50 ns
Receiver Disable from Output High (tHZ) Figure 8
100 ns
Receiver Disable from Output Low (tLZ)
Figure 8
200 ns
Receiver Enable from Shutdown to Output
High
Figure 8
4000 ns
Receiver Enable from Shutdown to Output
Low
Figure 8
4000 ns
Time to Shutdown (tSHDN)
50 200 600 ns
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP3070E-SP3078E_102_120210
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for SP3075E electronic component. |
Information | Total 20 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Download | [ SP3075E.PDF Datasheet ] |
Share Link :
Electronic Components Distributor
An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists. |
SparkFun Electronics | Allied Electronics | DigiKey Electronics | Arrow Electronics |
Mouser Electronics | Adafruit | Newark | Chip One Stop |
Featured Datasheets
Part Number | Description | MFRS |
SP3075E | The function is RS-485/RS422 Transceivers. Exar | |
SP3075E | The function is (SP3070E - SP3078E) Transceivers. Sipex Corporation | |
Semiconductors commonly used in industry:
1N4148 |  
BAW56 |
1N5400 |
NE555 | | ||
Quick jump to:
SP30
1N4
2N2
2SA
2SC
74H
BC
HCF
IRF
KA |