SP3077EEN Exar Corporation, SP3077EEN Datasheet

no-image

SP3077EEN

Manufacturer Part Number
SP3077EEN
Description
Manufacturer
Exar Corporation
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SP3077EEN
Manufacturer:
SIPEX
Quantity:
20 000
Part Number:
SP3077EEN-L
Manufacturer:
Crystek
Quantity:
8
Part Number:
SP3077EEN-L/TR
Manufacturer:
EXAR
Quantity:
5 000
FEATURES
■ ±15kV ESD protection for RS485 pins
■ 3.3V low-power operation
■ Advanced receiver-failsafe protection for
■ 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
■ Available in three industry standard foot-
■ Three applications-optimized speed grades
■ Small form factor SO-narrow packages
■ Industrial (-40 to +85ºC) and Extended
The SP3070-3078E 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 inputs are ESD protected up to ±15kV (Air-Gap and Human Body Model) and up
to ±8kV Contact discharge (IEC 1000-4-2).
Date: 03/31/05
APPLICATIONS
■ Industrial Control, Utility Meters Building Automation, Instrumentation, Point of Sale
±15kV ESD-Protected, 3.3V, 1/8 Load, Failsafe
RS-485/RS422 Transceivers
open, shorted or terminated lines
contention
prints
■ SP3070E, SP3073E and SP3076E in Full-Duplex (14 pin)
■ SP3071E, SP3074E and SP3077E in Full-Duplex (8 pin)
■ SP3072E, SP3075E and SP3078E in Half-Duplex (8 pin)
■ SP3070-72E: 250kbps fully slew-limited
■ SP3073-75E: 500kbps slew-limited
■ SP3076-78E: 16Mbps high speed
(-40 to +125ºC) temperature grades
SP3070E - SP3078E Family, ± 15kV ESD-Protected, Failsafe RS-485/RS422 Transceivers
®
SP3070E - SP3078E Family
1
Now Available in Lead Free Packaging
GND
V
RO
GND 7
R
RE
DE
GND
CC
DI
DI
O
NC
RO
RE
DE
I
DI
1
2
3
4
1
2
3
4
1
2
3
4
5
6
8 PIN NSOIC
8 PIN NSOIC
14 Pin NSOIC
Full Duplex
Full Duplex
Half Duplex
SP3070E
SP3073E
SP3076E
SP3071E
SP3074E
SP3077E
SP3072E
SP3075E
SP3078E
© Copyright 2005 Sipex Corporation
DESCRIPTION
14
13
12
11
10
8
9
8
7
6
5
8
7
6
5
V
NC
A
B
Z
Y
NC
CC
GND
V
B
A
B
Y
A
Z
CC

Related parts for SP3077EEN

SP3077EEN Summary of contents

Page 1

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 ■ 256 Transceivers may share bus ■ ...

Page 2

Devices are available in three industry standard architectures and footprints. In each footprint there are three speed grades available GND 7 GND ...

Page 3

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 for extended periods ...

Page 4

Unless otherwise noted V = +3.3 ±0.3V, ambient temperature T CC ambient temperature T = +25ºC. The ♦ denotes the specifications which apply over the full operating range A unless otherwise noted ...

Page 5

Unless otherwise noted V = +3.3 ±0.3V, ambient temperature T CC ambient temperature T = +25º ...

Page 6

Unless otherwise noted V = +3.3 ±0.3V, ambient temperature T CC ambient temperature T = +25º ...

Page 7

Unless otherwise noted Vcc=+3.3±0.3V, ambient temperature Tmin < Ta < Tmax. Typical values are at Vcc = 3.3, ambient temperature Ta = +25º ...

Page 8

FIGURE 1. DRIVER DC TEST CIRCUIT FIGURE 3. DRIVER PROPAGATION DELAY TIME TEST CIRCUIT AND TIMING DIAGRAM ...

Page 9

FIGURE 4. DRIVER ENABLE & DISABLE TIMES TEST CIRCUIT & TIMING DIAGRAM GENERATOR DE OUT FIGURE 4A. DRIVER CONTENTION TEST Date: 03/31/05 SP3070E - SP3078E Family, ± ...

Page 10

FIGURE 5. DRIVER ENABLE & DISABLE TIMES TEST CIRCUIT & TIMING DIAGRAM GENERATOR DE V OUT FIGURE 6. RECEIVER PROPAGATION DELAY TEST CIRCUIT & TIMING DIAGRAM A B 1.5V OUT Date: 03/31/05 SP3070E - SP3078E Family, ± ...

Page 11

FIGURE 7. RECEIVER ENABLE & DISABLE TIMES TEST CIRCUIT S3 1.5V B -1.5V A GENERATOR FIGURE 8. RECEIVER ENABLE & DISABLE TIMING DIAGRAM S1 is open S2 is closed S3 = 1.5V 1. ZH, OUT S1 is open ...

Page 12

...

Page 13

...

Page 14

DETAILED DESCRIPTION The SP307XE family of high speed transceiv- ers for RS-485/RS-422 communication con- tain one driver and one receiver. These devices feature fail-safe circuitry, which guar- antees a logic-high receiver output when the receiver inputs are open or shorted, ...

Page 15

After an ESD event, the SP3070E - SP3078E keep working without latchup or damage. ESD protection can be tested in various ways. The transmitter outputs and receiver inputs of the SP3070E - SP3078E are characterized ...

Page 16

DRIVER OUTPUT PROTECTION Two mechanisms prevent excessive output current and power dissipation caused by faults or by bus contention. First, current limit on the ouput stage, provides immediate protection against short circuits over the whole common-mode voltage range. Sec- ond, ...

Page 17

D e E/2 1 INDEX AREA (D/2 X E1/2) TOP VIEW 8 Pin NSOIC JEDEC MO-012 (AA) Variation MIN NOM SYMBOL A 1.35 A1 0.1 A2 1.25 b 0.31 c 0.17 D 4.90 BSC E 6.00 BSC E1 3.90 BSC ...

Page 18

D e E/2 1 INDEX AREA (D/2 X E1/2) TOP VIEW 14 Pin NSOIC JEDEC MO-012 (AB) Variation SYMBOL MIN NOM 8.65 BSC E ...

Page 19

... SP3076EMN .................................................. -40˚C to +125˚C .................................................... 14-pin NSOIC SP3076EMN/TR ............................................ -40˚C to +125˚C .................................................... 14-pin NSOIC SP3077EEN .................................................... -40˚C to +85˚C ....................................................... 8-pin NSOIC SP3077EEN/TR .............................................. -40˚C to +85˚C ....................................................... 8-pin NSOIC SP3077EMN .................................................. -40˚C to +125˚C ...................................................... 8-pin NSOIC SP3077EMN/TR ............................................ -40˚C to +125˚C ...................................................... 8-pin NSOIC SP3078EEN .................................................... -40˚C to +85˚C ....................................................... 8-pin NSOIC SP3078EEN/TR .............................................. -40˚ ...

Related keywords