QUAD, ±16.5kV ESD Protected, 3.0V to 5.5V,
RS-485/RS-422 Receivers
ISL32173E, ISL32175E, ISL32177E, ISL32273E, ISL32275E,
ISL32277E
These Intersil devices are
±
16.5kV IEC61000-4-2 ESD
protected, 3.0V to 5.5V powered, QUAD receivers for
balanced communication using the RS-485 and RS-422
standards. Each receiver has low input currents
(
±
200µA), so it presents a 1/4 unit load to the RS-485
bus, and allows up to 128 receivers on the bus.
The ISL32173E, ISL32175E, ISL32177E are high data
rate receivers that operate at data rates up to 80Mbps.
Their 8ns maximum propagation delay skew (tolerance)
guarantees excellent part-to-part matching. The
ISL32273E, ISL32275E, ISL32277E are reduced supply
current versions that operate at data rates up to 20Mbps.
Receiver outputs are tri-statable, and incorporate a hot
plug feature to keep them disabled during power up and
down. Versions are available with a common EN/EN (‘173
pinout), a two channel EN12/EN34 (‘175 pinout), or a
versatile individual channel enable (see Table 1).
A 26% smaller footprint is available with the ISL32177E
and ISL32277E QFN packages, and these two devices
also feature a logic supply pin (V
L
). The V
L
supply sets
the switching points of the enable inputs, and the
receiver outputs’ V
OH
, to levels compatible with a lower
supply voltage in mixed voltage systems. Individual
channel and group enable pins increase the ISL32177E
and ISL32277E’s flexibility.
ISL32173E, ISL32175E, ISL32177E, ISL32273E, ISL32275E, ISL32277E
Features
• IEC61000 ESD Protection (RS-485 Inputs)
±
16.5kV
- Class 3 ESD on all Other Pins . . . . . . >8kV HBM
• Wide Supply Range. . . . . . . . . . . . . 3.0V to 5.5V
• Wide Common Mode Range . . . . . . . -7V to +12V
• Low Part-to-Part Propagation Delay
Tolerance. . . . . . . . . . . . . . . . . . . .
±
4ns (max)
• Specified for +125°C Operation
• Fail-Safe Open Rx Inputs
• 1/4 Unit Load Allows 128 Devices on the Bus
• Available in Industry Standard Pinouts (‘173/’175)
and a 4x4 QFN (ISL32X77E) with Added Features
• Logic Supply Pin (V
L
) Eases Operation in Mixed
Supply Systems (ISL32X77E)
• High Data Rates . . . . . . . . . up to 80M or 20Mbps
• Low Shutdown Supply Current . . . . . . . . . . 60µA
• Tri-statable Rx Outputs
• 5V Tolerant Logic Inputs When V
CC
= 3.3V
Applications
•
•
•
•
Telecom Equipment
Motor Controllers/Encoders
Programmable Logic Controllers
Industrial/Process Control Networks
ISL32177E Part-to-Part Prop
Delay Variability
V
CC
= 3.3V, +25°C
# of DEVICES = 270
ISL3217XE Data Rate and V
L
Performance
RECEIVER OUTPUT (V) RECEIVER INPUT (V)
80Mbps
1
0
-1
A-B
V
CC
= 3.3V
FREQUENCY
3.0
2.5
2.0
1.5
1.0
0.5
0
-0.5
V
L
= 2.5V
V
L
= 1.8V
V
L
= 1.6V
10.04
10.17
10.29
10.41
10.54
10.66
10.78
10.91
11.03
11.15
11.28
11.40
11.52
9.67
9.80
9.92
RECEIVER PROPAGATION DELAY (ns)
TIME (4ns/DIV)
March 14, 2013
FN7529.1
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Copyright Intersil Americas LLC 2009, 2013. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
ISL32173E, ISL32175E, ISL32177E, ISL32273E, ISL32275E, ISL32277E
TABLE 1. SUMMARY OF FEATURES
V
L
DATA
RATE
HOT
SUPPLY
PIN?
FUNCTION (Mbps) PLUG?
4 Rx
4 Rx
4 Rx
4 Rx
4 Rx
4 Rx
80
80
80
20
20
20
YES
YES
YES
YES
YES
YES
NO
NO
YES
NO
NO
YES
MAX. TOTAL
SUPPLY
CURRENT
(mA)
15
15
15
5.5
5.5
5.5
PART
NUMBER
ISL32173E
ISL32175E
ISL32177E
ISL32273E
ISL32275E
ISL32277E
Rx ENABLE
TYPE
EN, EN
EN12, EN34
INDIVIDUAL AND GROUP
ENABLES
EN, EN
EN12, EN34
INDIVIDUAL AND GROUP
ENABLES
LOW POWER
SHUTDOWN?
YES
YES
YES
YES
YES
YES
PIN
COUNT
16
16
24
16
16
24
Pin Configurations
ISL32173E, ISL32273E
(16 LD N-SOIC, 16 LD TSSOP)
TOP VIEWS
B1 1
A1 2
RO1 3
EN 4
RO2 5
A2 6
B2 7
GND 8
R
R
R
R
16 V
CC
15 B4
14 A4
13 RO4
12 EN
11 RO3
10 A3
9 B3
ISL32175E, ISL32275E
(16 LD N-SOIC, 16 LD TSSOP)
TOP VIEWS
B1 1
A1 2
RO1 3
EN12 4
RO2 5
A2 6
B2 7
GND 8
R
R
R
R
16 V
CC
15 B4
14 A4
13 RO4
12 EN34
11 RO3
10 A3
9 B3
ISL32177E, ISL32277E
(24 LD QFN)
TOP VIEW
V
CC
A1
A4
19
18 RO4
R
R
17 EN4
16 EN3
15 EN
R
14 NC
13 RO3
7
A2
8
B2
9
SHDNEN
10
GND
11
B3
12
A3
B1
B4
20
V
L
21
24
RO1
EN1
EN2
EN
NC
RO2
1
2
3
4
5
6
23
22
PAD
(GND)
R
2
FN7529.1
March 14, 2013
ISL32173E, ISL32175E, ISL32177E, ISL32273E, ISL32275E, ISL32277E
Pin Descriptions
ISL32177E,
ISL32175E,
ISL32173E,
ISL32277E
ISL32275E
ISL32273E
PIN NUMBER PIN NUMBER PIN NUMBER
4, 12
-
4, 15
PIN
EN, EN
FUNCTION
Group driver output enables, that are internally pulled high to
V
CC
. All receiver outputs are enabled by driving EN high OR EN
low, and the outputs are all high impedance when EN is low AND
EN is high (i.e., if using only the active high EN, connect EN to
V
CC
or V
L
through a 1kΩ resistor; if using only the active low EN,
connect EN directly to GND). If the group enable function isn’t
required, connect EN to V
CC
(or V
L
) through a 1kΩ or greater
resistor, or connect EN directly to GND. (ISL32X73E and
ISL32X77E only)
Paired driver output enables, that are internally pulled high to
V
CC
. Driving EN12 (EN34) high enables the channel 1 and 2
(3 and 4) RO outputs. Driving EN12 (EN34) low disables the
channel 1 and 2 (3 and 4) outputs. If the enable function isn’t
required, connect EN12 and EN34 to V
CC
(or V
L
) through a 1kΩ
or greater resistor. (ISL32X75E only).
Individual receiver output enables that are internally pulled high
to V
CC
. Forcing ENX high (along with EN high OR EN low) enables
the channel X output (ROX). Driving ENX low disables the
channel X output, regardless of the states of EN and EN. If the
individual channel enable function isn’t required, connect ENX to
V
CC
(or V
L
) through a 1kΩ or greater resistor. (ISL32X77E only)
Low power SHDN mode enable that is internally pulled high to
V
CC
. A high level allows the ISL32X77E to enter a low power
mode when all channels are disabled. A low level prevents the
device from entering the low power mode. (ISL32X77E only)
Channel X receiver output: If A - B
≥
200mV, RO is high;
If A - B
≤
-200mV, RO is low. RO = High if A and B are unconnected
(floating).
Ground connection. This is also the potential of the QFN thermal
pad.
±16.5kV IEC61000-4-2 ESD Protected RS-485/422 level,
channel X noninverting receiver input.
±16.5kV IEC61000-4-2 ESD Protected RS-485/422 level,
channel X inverting receiver input.
System power supply input (3.0V to 5.5V). On devices with a V
L
pin powered from a separate supply, power up V
CC
first.
Logic power supply input (1.4V to V
CC
) that powers all the
TTL/CMOS inputs and outputs (logic pins). V
L
sets the V
IH
and
V
IL
levels of the enable and SHDNEN pins, and sets the V
OH
level
of the RO pins. Connect the V
L
pin to the lower voltage power
supply of a logic device (e.g., UART or µcontroller) interfacing
with the ISL32X77E logic pins. If V
L
and V
CC
are different
supplies, power up this supply after V
CC
, and keep V
L
≤
V
CC
. To
minimize input current and SHDN supply current, logic pins that
are strapped high externally (preferably through a 1kΩ resistor)
should connect to V
CC
, but they may also connect to V
L
.
(ISL32X77E only)
No Connection.
-
4, 12
-
EN12, EN34
-
-
2, 3,
16, 17
EN1, EN2,
EN3, EN4
-
-
9
SHDNEN
3, 5,
11, 13
8
2, 6,
10, 14
1, 7,
9, 15
16
-
3, 5,
11, 13
8
2, 6,
10, 14
1, 7,
9, 15
16
-
1, 6,
13, 18
10, PAD
24, 7,
12, 19
23, 8,
11, 20
22
21
RO1, RO2,
RO3, RO4
GND
A1, A2,
A3, A4
B1, B2,
B3, B4
V
CC
V
L
-
-
5, 14
NC
3
FN7529.1
March 14, 2013
ISL32173E, ISL32175E, ISL32177E, ISL32273E, ISL32275E, ISL32277E
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
ISL32173EIBZ
ISL32173EFBZ
ISL32173EIVZ
ISL32173EFVZ
ISL32175EIBZ
ISL32175EFBZ
ISL32175EIVZ
ISL32175EFVZ
ISL32177EIRZ
ISL32177EFRZ
ISL32273EIBZ
ISL32273EFBZ
ISL32273EIVZ
ISL32273EFVZ
ISL32275EIBZ
ISL32275EFBZ
ISL32275EIVZ
ISL32275EFVZ
ISL32277EIRZ
ISL32277EFRZ
NOTES:
1. Add “-T” suffix for tape and reel. Please refer to
TB347
for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach
materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both
SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that
meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), please see device information page for
ISL32173E,ISL32175E,ISL32177E,ISL32273E,
ISL32275E, ISL32277E.
For more information on MSL please see tech brief
TB363.
PART
MARKING
ISL32173 EIBZ
ISL32173 EFBZ
32173 EIVZ
32173 EFVZ
ISL32175 EIBZ
ISL32175 EFBZ
32175 EIVZ
32175 EFVZ
321 77EIRZ
321 77EFRZ
ISL32273 EIBZ
ISL32273 EFBZ
32273 EIVZ
32273 EFVZ
ISL32275 EIBZ
ISL32275 EFBZ
32275 EIVZ
32275 EFVZ
322 77EIRZ
322 77EFRZ
TEMP. RANGE
(°C)
-40 to +85
-40 to +125
-40 to +85
-40 to +125
-40 to +85
-40 to +125
-40 to +85
-40 to +125
-40 to +85
-40 to +125
-40 to +85
-40 to +125
-40 to +85
-40 to +125
-40 to +85
-40 to +125
-40 to +85
-40 to +125
-40 to +85
-40 to +125
PACKAGE
(Pb-Free)
16 Ld SOIC
16 Ld SOIC
16 Ld TSSOP
16 Ld TSSOP
16 Ld SOIC
16 Ld SOIC
16 Ld TSSOP
16 Ld TSSOP
24 Ld QFN
24 Ld QFN
16 Ld SOIC
16 Ld SOIC
16 Ld TSSOP
16 Ld TSSOP
16 Ld SOIC
16 Ld SOIC
16 Ld TSSOP
16 Ld TSSOP
24 Ld QFN
24 Ld QFN
PKG.
DWG. #
M16.15
M16.15
MDP0044
MDP0044
M16.15
M16.15
MDP0044
MDP0044
L24.4x4C
L24.4x4C
M16.15
M16.15
MDP0044
MDP0044
M16.15
M16.15
MDP0044
MDP0044
L24.4x4C
L24.4x4C
Truth Tables
RECEIVER OUTPUT (ROX ENABLED, ALL VERSIONS)
INPUTS (A-B)
≥0.2V
≤-0.2V
Inputs Open (Floating)
OUTPUT (RO)
1
0
1
RECEIVER ENABLE (ISL32173E, ISL32273E)
INPUTS
EN
X
1
0
EN
0
X
1
OUTPUTS
ROX
ENABLED
ENABLED
DISABLED*
NOTE: *Low Power SHDN Mode When Disabled
4
FN7529.1
March 14, 2013
ISL32173E, ISL32175E, ISL32177E, ISL32273E, ISL32275E, ISL32277E
Truth Tables
INPUTS
EN12
0
0
1
1
EN34
0
1
0
1
(Continued)
RECEIVER ENABLE (ISL32177E, ISL32277E)
INPUTS
ENX
RO4
Z*
EN
Z
EN
0
EN1-4 = 0
X
X
1
1
EN EN SHDNEN ROX
X
X
0
0
X
1
X
X
1
1
0
X
0
1
0
1
X
X
Z
Z*
Z
Z*
EN
EN
OUTPUTS
COMMENTS
Chan X output disabled
All outputs disabled
All outputs disabled
All outputs disabled
Individual ENX controls
chan
RECEIVER ENABLE (ISL32175E, ISL32275E)
OUTPUTS
RO1
Z*
Z
EN
EN
RO2
Z*
Z
EN
EN
RO3
Z*
EN
Z
EN
NOTE: *Low Power SHDN Mode When All Outputs Disabled;
Z = Tri-state
NOTE: * Low Power SHDN Mode; Z = Tri-state
Typical Operating Circuits (1 of 4 Channels Shown)
NETWORK USING GROUP ENABLES
+3.3V TO 5V
16
V
CC
ISL32X73E
3 RO
12 EN
A
R
B
2
1
R
T
2 Y
3 Z
D
+
0.1µF
+
0.1µF
+3.3V TO 5V
16
V
CC
ISL32X72E
DI 1
EN 4
EN 12
GND
8
EN
4
GND
8
≥1kΩ
NETWORK USING PAIRED ENABLES
+3.3V TO 5V
16
V
CC
ISL32X75E
3 RO1
4 EN12
A1 2
R
B1 1
R
T
+
0.1µF
+
0.1µF
+3.3V TO 5V
16
V
CC
ISL32X74E
EN12 4
2 Y1
3 Z1
D
DI1 1
GND
8
GND
8
5
FN7529.1
March 14, 2013
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