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参数资料
| 型号： | ADM2481BRWZ-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 18/20页 |
| 文件大小： | 0K |
| 描述： | IC TXRX ISOLATED RS-485 16SOIC |
| 标准包装： | 400 |
| 系列： | iCoupler® |
| 类型： | 收发器，隔离式 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS422/RS485 |
| 电源电压： | 3.3V，5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 带卷 (TR) |
Data Sheet
ADM2481
Rev. A | Page 7 of 20
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NC = NO CONNECT
ADM2481
TOP VIEW
(Not to Scale)
VDD1 1
VDD2
16
GND11 2
GND21
15
RxD
3
NC
14
RE
4
B
13
DE
5
A
12
TxD
6
NC
11
GND11 7
GND21
10
GND11 8
GND21
9
1 PIN 2, PIN 7, AND PIN 8 MUST BE CONNECTED TO GND1.
PIN 9, PIN 10, AND PIN 15 MUST BE CONNECTED TO GND2.
08920-
002
Figure 2. Pin Configuration
Table 8. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
VDD1
Power Supply (Logic Side).
2, 7, 8
GND1
Ground (Logic Side).
3
RxD
Receiver Output Data. When enabled, if (A B) ≥ 30 mV, then RxD = high; if (A B) ≤ 200 mV, then
RxD = low. This is a tristate output 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
DE
Driver Enable Input. Driving the 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.
9, 10, 15
GND2
Ground (Bus Side).
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).
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相关代理商/技术参数 |
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| ADM2482E | 制造商:AD 制造商全称:Analog Devices 功能描述:2.5 kV Isolated RS-485 Transceivers with Integrated Transformer Driver |
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| ADM2483 | 制造商:AD 制造商全称:Analog Devices 功能描述:Half-Duplex iCoupler-R Isolated RS-485 Transceiver |
| ADM2483BRW | 功能描述:IC TXRX RS-485 ISOLATED 16-SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:iCoupler® 标准包装:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232，RS485 电源电压:4.75 V ~ 5.25 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC 包装:管件 |
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