TI SN75ALS1711

SN75ALS1711
TRIPLE DIFFERENTIAL BUS TRANSCEIVER
SLLS117B – APRIL 1991 – REVISED MAY 1995
D
D
D
D
D
D
D
D
D
D
D
D
D
D
DW OR N PACKAGE
(TOP VIEW)
Three Bidirectional Transceivers
Driver/Receiver Meets or Exceeds the
Requirements of ANSI Standard RS-485
and ANSI Standard X3.131-1986 (SCSI)
1R
1DE
1D
GND
GND
2R
2DE
2D
3R
3DE
High-Speed Advanced Low-Power Schottky
Circuitry
Designed for Multipoint Transmission on
Long Bus Lines in Noisy Environments
Wide Positive and Negative Input/Output
Bus Voltages Ranges . . . – 7 V to 12 V
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
1B
1A
RE
CDE
VCC
2B
2A
3B
3A
3D
Driver Output Capacity . . . ± 60 mA
Driver Positive and Negative Current
Limiting
Thermal Shutdown Protection
Receiver Input Sensitivity . . . ± 200 mV Max
Receiver Input Impedance . . . 12 kΩ Min
Receiver Input Hysteresis . . . 50 mV Typ
Function Tables
EACH DRIVER
INPUT
D
H
L
X
X
Operates From a Single 5-V Supply
Low Supply-Current Requirements
72 mA Max
Glitch-Free Power-up and Power-Down
Protection
description
ENABLES
DE
CDE
H
H
L
X
OUTPUTS
A
B
H
L
Z
Z
H
H
X
L
L
H
Z
Z
EACH RECEIVER
DIFFERENTIAL INPUTS
A–B
ENABLE
RE
OUTPUT
R
VID ≥ 0.2 V
VID = – 0.2 V to 0.2 V
VID ≤ – 0.2 V
X
Open
L
L
L
H
L
H
?
L
Z
H
H = high level,
X = irrelevant,
L = low-level, ? = indeterminate,
Z = high impedance (off)
The SN75ALS1711 triple differential bus
transceiver is a monolithic integrated circuit
designed for bidirectional data communication on multipoint bus transmission lines. It is designed for balanced
transmission lines and meets ANSI Standard RS-485 and ANSI Standard X3.131-1986 (SCSI).
The SN75ALS1711 operates from a single 5-V power supply. The drivers and receivers have individual
active-high and active-low enables, respectively, which can be externally connected together to function as a
direction control. The driver differential output and the receiver differential input pairs are connected internally
to form differential input/output (I/O) bus ports that are designed to offer minimum loading to the bus when the
driver is disabled or VCC is at 0. These ports feature wide positive and negative common-mode voltage ranges
making the device suitable for party-line applications.
The SN75ALS1711 is characterized for operation from 0°C to 70°C.
Copyright  1995, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
SN75ALS1711
TRIPLE DIFFERENTIAL BUS TRANSCEIVER
SLLS117B – APRIL 1991 – REVISED MAY 1995
logic symbol†
CDE
1DE
2DE
3DE
RE
1D
1R
2D
2R
3D
3R
17
2
7
10
18
logic diagram (positive logic)
G5
CDE
5EN1
1DE
5EN2
1D
5EN3
RE
EN4
3
19
1
20
1
1
4
14
15
2
4
12
3
13
3
4
3
18
19
1
20
2DE
2A
2R
2B
1A
1B
Bus
7
8
14
6
15
2A
Bus
2B
1
11
9
1B
2D
2
2
1A
1
8
6
1R
17
3DE
3A
3D
10
11
3B
1
3R
12
9
13
3A
Bus
3B
† This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
schematics of inputs and outputs
EQUIVALENT OF EACH INPUT
TYPICAL OF A AND B I/O PORTS
VCC
TYPICAL OF RECEIVER OUTPUT
VCC
Input
17 kΩ
1.7 kΩ
1.7 kΩ
VCC (A)
or
GND (B)
GND
Input /Output Port
All values are nominal.
POST OFFICE BOX 655303
VCC
Output
288 kΩ
2
70 Ω
• DALLAS, TEXAS 75265
SN75ALS1711
TRIPLE DIFFERENTIAL BUS TRANSCEIVER
SLLS117B – APRIL 1991 – REVISED MAY 1995
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
Enable input voltage range, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to VCC + 0.5 V
Input voltage range, VI: Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to VCC + 0.5 V
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 9 V to 14 V
Output voltage range, VO: Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 9 V to 14 V
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to VCC + 0.5 V
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values, except differential input/output bus voltage, are with respect to network ground terminal.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
DW
1125 mW
9.0 mW/°C
720 mW
N
1150 mW
9.2 mW/°C
736 mW
recommended operating conditions
MIN
TYP
MAX
UNIT
Supply voltage, VCC
4.75
5
5.25
V
Common-mode input voltage at any bus terminal, VIC (see Note 2)
–7‡
12
V
High-level input voltage, VIH
D, DE, RE, CDE
Low-level input voltage, VIL
D, DE, RE, CDE
High level output current,
current IOH
High-level
Low level output current,
Low-level
current IOL
2
Driver
Receiver
Driver
V
0.8
V
– 60
mA
– 400
µA
60
Receiver
8
mA
Operating free-air temperature, TA
0
70
°C
‡ The algebraic convention, in which the less-positive (more-negative) limit is designated minimum, is used in this data sheet for common-mode
input voltage and threshold voltage levels only.
NOTE 2: Differential-input/output bus voltage is measured at the noninverting terminal A with respect to the inverting terminal B.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
SN75ALS1711
TRIPLE DIFFERENTIAL BUS TRANSCEIVER
SLLS117B – APRIL 1991 – REVISED MAY 1995
DRIVER SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VIK
VO
Input clamp voltage
II = – 18 mA
IO = 0
VOD1
VOD2
Differential output voltage
Differential output voltage
IO = 0
RL = 54 Ω,
VOD3
∆ | V OD|
Differential output voltage
See Note 3 and Figure 2
Change in magnitude of differential output voltage‡
RL = 54 Ω,
Output voltage
See Figure 1
MIN
TYP†
MAX
UNIT
– 1.5
V
0
6
V
1.5
5
V
1.5
5
V
5
V
See Figure 1
1.5
± 0.2
V
V
V
VOC
Common-mode output voltage
RL = 54 Ω,
See Figure 1
3
–1
∆ | V OC |
Change in magnitude of common-mode output
voltage‡
RL = 54 Ω,
See Figure 1
± 0.2
IOZ
High impedance state output current
High-impedance
Output disabled,,
VCC = 5.25 V
VO = 12 V
VO = 7 V
– 0.8
IIH
IIL
High-level input current, DE, EN, CDE
Low-level input current, DE, EN, CDE
1
VIH = 2.4 V
VIL = 0.4 V
IOS
Short circuit output current
Short-circuit
VO = 12 V
VO = 7 V
ICC
Supply current
No load
mA
20
µA
– 200
µA
– 250
250
Outputs enabled
48
72
Outputs disabled
30
48
mA
mA
† All typical values are at VCC = 5 V and TA = 25°C.
‡ ∆ |V OD| and ∆ |V OC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed from a high level to a low
level.
NOTE 3: This applies for both power on and off; refer to ANSI Standard RS-485 for exact conditions.
switching characteristics, VCC = 5 V ± 5%, TA = 25°C
PARAMETER
TEST CONDITIONS
tPLH
tPHL
Differential propagation delay time, low- to high-level output
tPZH
tPHZ
Output enable time to high level
tPZL
tPLZ
Output enable time to low level
4
Differential propagation delay time, high- to low-level output
RL = 54 Ω,,
See Figure 3
RL = 110 Ω,
See Figure 4
Output disable time from high level
Output disable time from low level
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
MIN
TYP
MAX
8
13
22
8
15
22
S1 open,,
S2 closed
30
50
60
4
16
30
S1 closed,
S2 open
16
26
45
4
8
20
CL = 100 pF,,
UNIT
ns
ns
SN75ALS1711
TRIPLE DIFFERENTIAL BUS TRANSCEIVER
SLLS117B – APRIL 1991 – REVISED MAY 1995
RECEIVER SECTION
electrical characteristics over recommended ranges of common-mode input voltage, supply
voltage, and operating free-air temperature (unless otherwise noted)
PARAMETER
VIT +
VIT –
Positive-going input threshold voltage
Vhys
VIK
Hysteresis voltage (VIT + – VIT –)
VOH
VOL
High-level output voltage
IOZ
High-impedance-state output current
II
Line input current
IIH
IIL
High-level input current, RE
ri
Input resistance
IOS
Short-circuit output current§
ICC
TEST CONDITIONS
Negative-going input threshold voltage
VO = 2.7 V,
VO = 0.5 V,
IO = – 0.4 mA
IO = 4 mA
MIN
TYP†
MAX
0.2
– 0.2 ‡
II = 18 mA
IOH = – 0.4 mA
Low-level output voltage
IOL = 4 mA
VCC = 5.25 V,
Other input at 0,,
See Note 3
mV
– 1.5
2.4
0.5
V
VO = 0.4 V to 2.4 V
VI = 12 V
± 20
µA
VI = 7 V
– 0.8
1
20
– 200
12
VO = 0
Supply current
mA
µA
µA
kΩ
– 15
No load
V
V
VIH = 2.4 V
VIL = 0.4 V
Low-level input current, RE
V
V
50
Input clamp voltage, RE
UNIT
– 130
Outputs enabled
48
72
Outputs disabled
30
48
mA
mA
† All typical values are at VCC = 5 V and TA = 25°C.
‡ The algebraic convention, in which the less-positive (more-negative) limit is designated minimum, is used in this data sheet for common-mode
input voltage and threshold voltage levels only.
§ Not more than one output should be shorted at one time.
NOTE 3: This applies for both power on and off; refer to ANSI Standard RS-485 for exact conditions.
switching characteristics, VCC = 5 V ± 5%, TA = 25°C
PARAMETER
TEST CONDITIONS
tPLH
tPHL
Propagation delay time, low- to high-level output
tPZH
Output enable time to high level
tPHZ
Output disable time from high level
tPZL
Output enable time to low level
tPZL
Output enable time to low level
Propagation delay time, high- to low-level output
MIN
TYP
MAX
13
20
37
13
20
37
S1 to 1.5 V,
S2 open,
open
S3 closed
3
9
20
8
15
22
S1 to – 1.5 V,
S2 closed,
closed
S3 open
5
10
20
5
9
16
See Figures 5 and 6
See Figures 5 and 7
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
UNIT
ns
ns
5
SN75ALS1711
TRIPLE DIFFERENTIAL BUS TRANSCEIVER
SLLS117B – APRIL 1991 – REVISED MAY 1995
PARAMETER MEASUREMENT INFORMATION
375 Ω
VOD2
RL
2
60 Ω
VOD3
RL
2
Vtest
VOC
375 Ω
Figure 1. Driver VOD and VOC
Figure 2. Driver VOD3
3V
A
Input
CL = 100 pF
(see Note B)
Generator
(see Note A)
RL = 54 Ω
3V
1.5 V
0V
tPHL
tPLH
50% VODM
CL = 100 pF
(see Note B)
50 Ω
1.5 V
B
50% VODM
VOH
Output B
VODM
Output A
VOL
Figure 3. Driver Propagation Delay Times
VCC
Input
(see Notes A and C)
S1
From Output
Under Test
CL = 50 pF
(see Note B)
3V
1.5 V
1.5 V
tPZL
tPLZ
S1 Closed
S2 Open
RL = 110 Ω
2.3 V
tPHZ
tPZH
Output 2
(see Note D)
S1 Closed
S2 Open
≈5V
Output 1
(see Note D)
S2
0V
S1 Open
S2 Closed
2.3 V
0.5 V
VOL
0.5 V
VOH
≈0V
S1 Open
S2 Closed
NOTES: A.
B.
C.
D.
All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr ≤ 10 ns, tf ≤ 10 ns.
CL includes probe and jig capacitance.
Each enable is tested separately.
Output 1 and output 2 are outputs with internal conditions such that the output is low or high except when disabled by the output
control.
Figure 4. Driver Enable/Disable Times
6
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SN75ALS1711
TRIPLE DIFFERENTIAL BUS TRANSCEIVER
SLLS117B – APRIL 1991 – REVISED MAY 1995
PARAMETER MEASUREMENT INFORMATION
Generator
(see Note A)
3V
2 kΩ
51 Ω
1.5 V
Input
5V
1.5 V
1.5 V
0V
tPLH
1N916 or
Equivalent
5 kΩ
0V
CL = 15 pF
(see Note B)
tPHL
Output
VOH
1.3 V
VOL
1.3 V
Figure 5. Receiver Propagation Delay Times
1.5 V
S1
2 kΩ
S2
5V
–1.5 V
CL = 15 pF
(see Note B)
Generator
(see Note A)
1N916 or
Equivalent
5 kΩ
50 Ω
S3
3V
Input
S1 at –1.5 V
S2 Closed
S3 Open
1.5 V
1.5 V
tPLZ
tPZL
S1 at –1.5 V
S2 Closed
S3 Open
≈5V
1.5 V
Output
tPZH
Output
0V
S1 at 1.5 V
S2 Open
S3 Closed
tPHZ
1.5 V
0.5 V
VOL
0.5 V
VOH
≈0V
S1 at 1.5 V
S2 Open
S3 Closed
NOTES: A. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr ≤ 10 ns, tf ≤ 10 ns.
B. CL includes probe and jig capacitance.
Figure 6. Receiver Enable/Disable Times
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
7
PACKAGE OPTION ADDENDUM
www.ti.com
6-Dec-2006
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
SN75ALS1711N
OBSOLETE
PDIP
N
Pins Package Eco Plan (2)
Qty
20
Pb-Free
(RoHS)
Lead/Ball Finish
CU NIPDAU
MSL Peak Temp (3)
N / A for Pkg Type
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
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to Customer on an annual basis.
Addendum-Page 1
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