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ISL3179EFBZ 数据手册 - 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:
INTERSIL ISL3179EFBZ 收发器, RS422 / RS485, 3V-3.6电源, SOIC-8
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ISL3179EFBZ数据手册
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若手册格式错乱，请下载阅览PDF原文件
ISL3179E, ISL3180E
3
FN6365.5
August 25, 2015
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Pin Configurations
ISL3179E
(8 LD SOIC, MSOP)
TOP VIEW
ISL3179E
(10 LD DFN)
TOP VIEW
ISL3180E
(14 LD SOIC)
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
EP
NC
RO
RE
DE
DI
GND
GND
V
CC
NC
A
B
Z
Y
NC
1
2
3
4
5
6
7
14
13
12
11
10
9
8
D
R
Truth Table
TRANSMITTING
INPUTS OUTPUTS
RE
DE DI B/Z A/Y
X1101
X1010
0 0 X High-Z High-Z
10XHigh-Z*High-Z*
NOTE: *Shutdown Mode
Truth Table
RECEIVING
INPUTS OUTPUT
RE
DE A-B RO
00≥ -0.05V 1
00≤ -0.2V 0
0 0 Inputs Open/Shorted 1
11X High-Z
10X High-Z*
NOTE: *Shutdown Mode
Pin Descriptions
PIN FUNCTION
RO Receiver output: If A-B ≥ -50mV, RO is high; If A-B ≤ -200mV, RO is low; RO = High if A and B are unconnected (floating) or shorted, or connected
to a terminated bus that is undriven.
RE
Receiver output enable. RO is enabled when RE is low; RO is high impedance when RE is high. If the Rx enable function isn’t required,
connect RE
directly to GND.
DE Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high, and they are high impedance when DE is low. If the Tx
enable function isn’t required, connect DE to V
CC
through a 1kΩ or greater resistor.
DI Driver input. A low on DI forces output Y low and output Z high. Similarly, a high on DI forces output Y high and output Z low.
GND Ground connection. This is also the potential of the DFN’s exposed metal pad.
A/Y
±16.5kV IEC61000 ESD protected RS-485/RS-422 level, noninverting receiver input and noninverting driver output. Pin is an input (A) if
DE = 0; pin is an output (Y) if DE = 1. ISL3179E only.
B/Z
±16.5kV IEC61000 ESD protected RS-485/RS-422 level, inverting receiver input and inverting driver output. Pin is an input (B) if DE = 0;
pin is an output (Z) if DE = 1. ISL3179E only.
A
±12kV HBM ESD protected RS-485/RS-422 level, noninverting receiver input. ISL3180E only.
B
±12kV HBM ESD protected RS-485/RS-422 level, inverting receiver input. ISL3180E only.
Y
±12kV HBM ESD protected RS-485/RS-422 level, noninverting driver output. ISL3180E only.
Z
±12kV HBM ESD protected RS-485/RS-422 level, inverting driver output. ISL3180E only.
V
CC
System power supply input (3.0V to 3.6V).
NC No internal connection.
EP The exposed metal pad on the bottom of the DFN; connect to GND.
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