ISL83077E Datasheet PDF - Intersil Corporation
| Part Number | ISL83077E | |
| Description | (ISL83070E - ISL83078E) RS-485/RS-422 Transceivers | |
| Manufacturers | Intersil Corporation | |
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ISL83070E, ISL83071E, ISL83072E, ISL83073E,
® ISL83075E, ISL83076E, ISL83077E, ISL83078E
Data Sheet
March 21, 2006
FN6115.3
±15kV ESD Protected, 3.3V, Full Fail-safe,
Low Power, High Speed or Slew Rate
Limited, RS-485/RS-422 Transceivers
The Intersil ISL8307XE are BiCMOS 3.3V powered, single
transceivers that meet both the RS-485 and RS-422
standards for balanced communication. These devices have
very low bus currents (+125µA/-100µA), so they present a
true “1/8 unit load” to the RS-485 bus. This allows up to 256
transceivers on the network without violating the RS-485
specification’s 32 unit load maximum, and without using
repeaters. For example, in a remote utility meter reading
system, individual meter readings are routed to a concentrator
via an RS-485 network, so the high allowed node count
minimizes the number of repeaters required.
Receiver (Rx) inputs feature a “Full Fail-Safe” design, which
ensures a logic high Rx output if Rx inputs are floating,
shorted, or terminated but undriven.
Hot Plug circuitry ensures that the Tx and Rx outputs remain
in a high impedance state while the power supply stabilizes.
The ISL83070E through ISL83075E utilize slew rate limited
drivers which reduce EMI, and minimize reflections from
www.DataSheet4U.coimmproperly terminated transmission lines, or unterminated
stubs in multidrop and multipoint applications. Slew rate limited
versions also include receiver input filtering to enhance noise
immunity in the presence of slow input signals.
The ISL83070E, ISL83071E, ISL83073E, ISL83076E,
ISL83077E are configured for full duplex (separate Rx input
and Tx output pins) applications. The half duplex versions
multiplex the Rx inputs and Tx outputs to allow transceivers
with output disable functions in 8 lead packages.
Features
• Pb-Free Plus Anneal (RoHS Compliant)
• RS-485 I/O Pin ESD Protection . . . . . . . . . . . . . ±15kV HBM
- Class 3 ESD Level on all Other Pins . . . . . . >7kV HBM
• Full Fail-safe (Open, Short, Terminated/Floating)
Receivers
• Hot Plug - Tx and Rx Outputs Remain Three-state During
Power-up
• True 1/8 Unit Load Allows up to 256 Devices on the Bus
• Single 3.3V Supply
• High Data Rates . . . . . . . . . . . . . . . . . . . . . . up to 20Mbps
• Low Quiescent Supply Current . . . . . . . . . . .800µA (Max)
- Ultra Low Shutdown Supply Current . . . . . . . . . . .10nA
• -7V to +12V Common Mode Input/Output Voltage Range
• Half and Full Duplex Pinouts
• Three State Rx and Tx Outputs Available
• Current Limiting and Thermal Shutdown for driver
Overload Protection
• Tiny MSOP package offering saves 50% board space
Applications
• Automated Utility Meter Reading Systems
• High Node Count Systems
• Field Bus Networks
• Security Camera Networks
• Building Environmental Control/ Lighting Systems
• Industrial/Process Control Networks
TABLE 1. SUMMARY OF FEATURES
PART HALF/FULL DATA RATE SLEW-RATE HOT # DEVICES RX/TX
NUMBER DUPLEX
(Mbps)
LIMITED? PLUG? ON BUS ENABLE?
ISL83070E
FULL
0.25
YES
YES
256
YES
ISL83071E
FULL
0.25
YES
YES
256
NO
ISL83072E
HALF
0.25
YES
YES
256
YES
ISL83073E
FULL
0.5
YES
YES
256
YES
ISL83075E
HALF
0.5
YES
YES
256
YES
ISL83076E
FULL
20
NO
YES
256
YES
ISL83077E
FULL
20
NO
YES
256
NO
ISL83078E
HALF
20
NO
YES
256
YES
QUIESCENT
ICC (µA)
510
510
510
510
510
510
510
510
LOW POWER PIN
SHUTDOWN? COUNT
YES
14
NO 8
YES
8
YES
14
YES
8
YES
14
NO 8
YES
8
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005, 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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ISL83070E, ISL83071E, ISL83072E, ISL83073E, ISL83075E, ISL83076E, ISL83077E, ISL83078E
Absolute Maximum Ratings
VCC to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Input Voltages
DI, DE, RE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
Input/Output Voltages
A, B, Y, Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -9V to +13V
RO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VCC +0.3V)
Short Circuit Duration
Y, Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . See Specification Table
Thermal Information
Thermal Resistance (Typical, Note 3)
θJA (°C/W)
8 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . .
105
8 Ld MSOP Package . . . . . . . . . . . . . . . . . . . . . . . .
140
14 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . .
128
Maximum Junction Temperature (Plastic Package) . . . . . . . 150°C
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300°C
(Lead Tips Only)
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to 85°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
3. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications Test Conditions: VCC = 3.0V to 3.6V; Unless Otherwise Specified. Typicals are at VCC = 3.3V, TA = 25°C,
Note 4
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP
(°C)
MIN
TYP MAX UNITS
DC CHARACTERISTICS
Driver Differential VOUT
Change in Magnitude of Driver
Differential VOUT for
Complementary Output States
VOD
∆VOD
RL = 100Ω (RS-422) (Figure 1A, Note 15)
RL = 54Ω (RS-485) (Figure 1A)
No Load
RL = 60Ω, -7V ≤ VCM ≤ 12V (Figure 1B)
RL = 54Ω or 100Ω (Figure 1A)
Full 2 2.3 - V
Full 1.5
2
VCC
V
- - VCC
Full 1.5 2.2 -
V
Full
-
0.01 0.2
V
Driver Common-Mode VOUT
Change in Magnitude of Driver
Common-Mode VOUT for
Complementary Output States
VOC
∆VOC
RL = 54Ω or 100Ω (Figure 1A)
RL = 54Ω or 100Ω (Figure 1A)
Full -
2 3V
Full
-
0.01 0.2
V
Logic Input High Voltage
Logic Input Low Voltage
Logic Input Hysteresis
Logic Input Current
Input Current (A, B, A/Y, B/Z)
Output Leakage Current (Y, Z) (Full
Duplex Versions Only, Note 12)
Output Leakage Current (Y, Z)
in Shutdown Mode (Full Duplex,
Note 12)
VIH
VIL
VHYS
IIN1
IIN2
IIN3
IIN4
DI, DE, RE
DI, DE, RE
DE, RE, (Note 14)
DI = DE = RE = 0V or VCC, Note 17
DE = 0V, VCC = 0V or
3.6V
VIN = 12V
VIN = -7V
RE = 0V, DE = 0V,
VCC = 0V or 3.6V
VIN = 12V
VIN = -7V
RE = VCC, DE = 0V,
VCC = 0V or 3.6V
VIN = 12V
VIN = -7V
Full 2
- -V
Full -
- 0.8 V
25 - 100 - mV
Full -2
- 2 µA
Full - 80 125 µA
Full -100 -50 - µA
Full - 10 40 µA
Full -40 -10 - µA
Full - 10 40 µA
Full -40 -10 - µA
Driver Short-Circuit Current,
VO = High or Low
Receiver Differential Threshold
Voltage
IOSD1 DE = VCC, -7V ≤ VY or VZ ≤ 12V (Note 6)
VTH -7V ≤ VCM ≤ 12V
Full -
- ±250 mA
Full
-200
-125 -50
mV
Receiver Input Hysteresis
Receiver Output High Voltage
∆VTH
VOH
VCM = 0V
IO = -4mA, VID = -50mV
25 - 15
Full VCC - 0.6 -
- mV
-V
5 FN6115.3
March 21, 2006
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