Datasheet > ISL3170E_08

ISL3170E_08

更新时间： 2022-11-10 02:55:47

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
19页	948K
描述
RS-485/RS-422 Transceivers

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数据手册

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ISL3170E_08 数据手册

ISL3170E,ISL3171E,ISL3172E,ISL3173E,ISL3174E,ISL3175E,ISL3176E,ISL3177E,ISL3178E

Truth Tables

Truth Tables (continued)

TRANSMITTING

RECEIVING

INPUTS

OUTPUTS

OUTPUT

Half Duplex Full Duplex

A-B

≥ -0.05V

≤ -0.2V

High-Z

High-Z *

Inputs

Open/Shorted

High-Z *

NOTE: *Shutdown Mode (See Note 9), except for ISL3171E,

ISL3174E, ISL3177E

High-Z *

High-Z

NOTE: *Shutdown Mode (See Note 9), except for ISL3171E,

ISL3174E, ISL3177E

Pin Descriptions

FUNCTION

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.

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 or through a 1kΩ to 3kΩ resistor to GND.

Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high, and are high impedance when DE is low. If the

Tx enable function isn’t required, connect DE to V

through a 1kΩ to 3kΩ resistor.

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.

Ground connection.

GND

A/Y

±15kV IEC61000 ESD Protected RS-485/422 level, noninverting receiver input and noninverting driver output. Pin is an input if

DE = 0; pin is an output if DE = 1.

B/Z

±15kV IEC61000 ESD Protected RS-485/422 level, Inverting receiver input and inverting driver output. Pin is an input if DE = 0;

pin is an output if DE = 1.

±15kV IEC61000 ESD Protected RS-485/422 level, noninverting receiver input.

±15kV IEC61000 ESD Protected RS-485/422 level, inverting receiver input.

±15kV IEC61000 ESD Protected RS-485/422 level, noninverting driver output.

±15kV IEC61000 ESD Protected RS-485/422 level, inverting driver output.

System power supply input (3.0V to 3.6V).

No Connection.

FN6307.4

June 10, 2008

1 234 5 6 7...19

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