Datasheet > RAA788172

RAA788172

更新时间： 2024-03-03 10:09:53

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
26页	818K
描述
3V Half-Duplex, 0.25 Mbps RS-485/422 Differential Transceiver with ±3kV EFT Immunity and ±16.5kV ESD Protection

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RAA788172 数据手册

RAA788170, RAA788172, RAA788173, RAA788175, RAA788176, RAA788178 Datasheet

Receiving

Inputs

Output

A-B

Half Duplex

Full Duplex

≥ -0.05V

-0.05V > V > -0.2V

Undetermined

≤ -0.2V

Inputs Open/Shorted

[1]

High-Z

1. Shutdown Mode

2.3

Pin Descriptions

Function

Receiver output: If A-B ≥ -50mV, RO is high; If A-B ≤ -200mV, RO is low; if A and B are unconnected (floating) or shorted,

RO = High.

Receiver output enable. RO is enabled when RE is low; RO is high impedance when RE is high. If the Rx enable function is

not 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 is not required, connect DE to VCC 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.

GND Ground connection.

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

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

A/Y

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, non-inverting receiver input.

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

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

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

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

NC No Connection.

R15DS0017EU0101 Rev.1.01

Oct 2, 2023

Page 5

1 2 3 456 7 8...26

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