Datasheet 搜索 > 接口芯片 > Intersil（英特矽尔） > ISL83485IB 数据手册 > ISL83485IB 其他数据使用手册 1/14 页
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ISL83485IB 其他数据使用手册 - Intersil（英特矽尔）
制造商:
Intersil（英特矽尔）
分类:
接口芯片
封装:
SOIC-8
描述:
3.3V,低功耗,高速RS-485/RS-422收发器
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ISL83485IB数据手册
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1
®
FN6365.1
ISL3179E
±15kV ESD Protected, +125°C, 40Mbps,
3.3V, Full Fail-Safe, RS-485/RS-422
Transceivers
Intersil’s ISL3179E is a ±15kV IEC61000 ESD Protected,
3.3V powered, single transceiver that meets both the
RS-485 and RS-422 standards for balanced communication.
This device has low bus currents (+220μA/-150μA), so it
presents a “1/5 unit load” to the RS-485 bus. This allows up to
160 transceivers on the network without violating the RS-485
specification’s 32 unit load maximum, and without using
repeaters.
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.
Features
• IEC61000 ESD Protection on RS-485 I/O Pins . . . ±16.5kV
- Class 3 HBM ESD Level on all Other Pins. . . . . . .>9kV
• Specified for +125°C Operation
• High Data Rates. . . . . . . . . . . . . . . . . . . . . . up to 40Mbps
• 5V Tolerant Logic Inputs
• 1/5 Unit Load Allows up to 160 Devices on the Bus
• Full Fail-Safe (Open, Shorted, Terminated/Undriven)
Receiver
• Hot Plug - Tx and Rx Outputs Remain Three-State During
Power-Up
• Low Quiescent Current . . . . . . . . . . . . . . . . . . 4mA (Max)
• Low Current Shutdown Mode. . . . . . . . . . . . . . 1μA (Max)
• -7V to +12V Common Mode Input Voltage Range
• Three-State Rx and Tx Outputs
• 16/16.5ns (Max) Tx/Rx Propagation Delays; 1.5ns (Max)
Skew
• Operates from a Single +3.3V Supply (10% Tolerance)
• Current Limiting and Thermal Shutdown for driver
Overload Protection
• Pb-Free Plus (RoHS Compliant)
Applications
• Motor Controller/Position Encoder Systems
• Factory Automation
• Field Bus Networks
• Security Networks
• Building Environmental Control Systems
• Industrial/Process Control Networks
Ordering Information
PART
NUMBER
(Notes 1, 2)
PART
MARKING
TEMP.
RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL3179EFBZ 3179 EFBZ -40 to +125 8 Ld SOIC M8.15
ISL3179EFUZ 179FZ -40 to +125 8 Ld MSOP M8.118
ISL3179EFRZ 79FZ -40 to +125 10 Ld DFN L10.3x3C
ISL3179EIBZ 3179 EIBZ -40 to +85 8 Ld SOIC M8.15
ISL3179EIUZ 179IZ -40 to +85 8 Ld MSOP M8.118
ISL3179EIRZ 79IZ -40 to +85 10 Ld DFN L10.3x3C
NOTES:
1. Add “-T” suffix for tape and reel.
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.
Pinouts
ISL3179E
(8 LD SOIC, MSOP)
TOP VIEW
ISL3179E
(10 LD DFN)
TOP VIEW
RO
RE
DE
DI
1
2
3
4
8
7
6
5
V
CC
B/Z
A/Y
GND
D
R
2
3
4
1
5
9
8
7
10
6
RO
RE
DE
DI
NC
V
CC
NC
B/Z
A/Y
GND
Data Sheet August 16, 2007
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. 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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