參數(shù)資料
型號(hào): ADM2487EBRWZ
廠商: Analog Devices Inc
文件頁數(shù): 19/20頁
文件大?。?/td> 0K
描述: IC TXRX RS485 ISO W/ESD 16SOIC
標(biāo)準(zhǔn)包裝: 47
類型: 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù): 1/1
規(guī)程: RS422,RS485
電源電壓: 3 V ~ 3.6 V
安裝類型: 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 W
包裝: 管件
產(chǎn)品目錄頁面: 790 (CN2011-ZH PDF)
ADM2482E/ADM2487E
Rev. A | Page 8 of 20
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NC = NO CONNECT
ADM2482E/
ADM2487E
TOP VIEW
(Not to Scale)
D1 1
D2 2
GND1 3
VDD1 4
VDD2
16
GND2
15
A
14
B
13
RxD 5
Z
12
RE 6
Y
11
DE 7
NC
10
TxD 8
GND2
9
07
37
9-
00
2
Figure 2. Pin Configuration
Table 9. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
D1
Transformer Driver Terminal 1.
2
D2
Transformer Driver Terminal 2.
3
GND1
Ground, Logic Side.
4
VDD1
Power Supply, Logic Side (3.3 V or 5 V). Decoupling capacitor to GND1 required; capacitor value should be
between 0.01 μF and 0.1 μF.
5
RxD
Receiver Output Data. This output is high when (A – B) > +200 mV and low when (A – B) < –200 mV. The
output is tristated when the receiver is disabled, that is, when RE is driven high.
6
RE
Receiver Enable Input. This is an active low input. Driving this input low enables the receiver; driving it high
disables the receiver.
7
DE
Driver Enable Input. Driving this input high enables the driver; driving it low disables the driver.
8
TxD
Transmit Data.
9
GND2
Ground, Bus Side.
10
NC
No Connect. This pin must be left floating.
11
Y
Driver Noninverting Output.
12
Z
Driver Inverting Output.
13
B
Receiver Inverting Input.
14
A
Receiver Noninverting Input.
15
GND2
Ground, Bus Side.
16
VDD2
Power Supply, Bus Side (Isolated 3.3 V Supply). Decoupling capacitor to GND2 required; capacitor value should be
between 0.01 μF and 0.1 μF.
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