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參數(shù)資料
型號(hào)： ADM2486BRWZ-REEL
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 20/20頁(yè)
文件大?。?/td> 0K
描述： IC TXRX RS-485 ISOLATED 16SOIC
標(biāo)準(zhǔn)包裝： 1,000
系列： iCoupler®
類(lèi)型： 收發(fā)器，隔離式
驅(qū)動(dòng)器/接收器數(shù)： 1/1
規(guī)程： RS422/RS485
電源電壓： 3V，5V
安裝類(lèi)型： 表面貼裝
封裝/外殼： 16-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 16-SOIC
包裝： 帶卷 (TR)
Data Sheet
ADM2486
Rev. E | Page 9 of 20
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
04604-
003
1 PIN 2 AND PIN 8 ARE INTERNALLY CONNECTED.
EITHER OR BOTH MAY BE USED FOR GND1.
PIN 9 AND PIN 15 ARE INTERNALLY CONNECTED.
EITHER OR BOTH MAY BE USED FOR GND2.
VDD1 1
GND11 2
RxD
3
RE
4
VDD2
16
GND21
15
NC
14
B
13
RTS
5
A
12
TxD
6
NC
11
PV
7
DE
10
GND11 8
GND21
9
NC = NO CONNECT
ADM2486
TOP VIEW
(Not to Scale)
Figure 2. Pin Configuration
Table 8. Pin Function Descriptions
Pin
No.
Mnemonic
Description
1
VDD1
Power Supply (Logic Side), 3 V or 5 V Supply. Decoupling capacitor to GND1 required, capacitor value should be
between 0.01 F and 0.1 F.
2, 8
GND1
Ground (Logic Side).
3
RxD
Receiver Output Data. This output is high when (A – B) > 200 mV and low when (A – B) < –200 mV. The output
is three-stated when the receiver is disabled, that is, when RE is driven high.
4
RE
Receiver Enable Input. This is an active-low input. Driving this input low enables the receiver, and driving it
high disables the receiver.
5
RTS
Request to Send Input. Driving this input high enables the driver, and driving it low disables the driver.
6
TxD
Transmit Data Input. Data to be transmitted by the driver is applied to this input.
7
PV
Power_Valid. Used during power-up and power-down, needs to be tied high when the ADM2486 is operational,
9, 15
GND2
Ground (Bus Side).
10
DE
Driver Enable Status Output. This output signals the driver enable or disable status to other devices on the bus.
DE is high when the driver is enabled and low when the driver is disabled.
11, 14
NC
No Connect.
12
A
Noninverting Driver Output/Receiver Input. When the driver is disabled, or when VDD1 or VDD2 is powered down,
Pin A is put into a high impedance state to avoid overloading the bus.
13
B
Inverting Driver Output/Receiver Input. When the driver is disabled, or when VDD1 or VDD2 is powered down,
Pin B is put into a high impedance state to avoid overloading the bus.
16
VDD2
Power Supply (Bus Side), 5 V Isolated Supply. Decoupling capacitor to GND2 required, capacitor value should be
between 0.01 F and 0.1 F.
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