参数资料
型号: ADM1486AR-REEL
厂商: Analog Devices Inc
文件页数: 13/16页
文件大小: 0K
描述: IC TXRX RS-485 PRO-BUS 5V 8SOIC
标准包装: 2,500
类型: 收发器
驱动器/接收器数: 1/1
规程: RS485
电源电压: 4.75 V ~ 5.25 V
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SO
包装: 带卷 (TR)
ADM1486
Rev. A | Page 6 of 16
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
RO
1
RE
2
DE
3
DI
4
VCC
8
B
7
A
6
GND
5
ADM1486
TOP VIEW
(Not to Scale)
02603-002
Figure 2. Pin Configuration
Table 4. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
RO
Receiver Output. When enabled, if A > B by 200 mV, RO = high. If A < B by 200 mV, RO = low.
2
RE
Receiver Output Enable. A low level enables the receiver output, RO. A high level places it in a high impedance
state.
3
DE
Driver Output Enable. A high level enables the driver differential outputs, A and B. A low level places it in a high
impedance state.
4
DI
Driver Input. When the driver is enabled, a logic low on DI forces A low and B high, while a logic high on DI forces
A high and B low.
5
GND
Ground Connection, 0 V.
6
A
Noninverting Receiver Input A/Driver Output A.
7
B
Inverting Receiver Input B/Driver Output B.
8
VCC
Power Supply, 5 V ±5%.
Table 5. Transmitting
DE Input
DI Input
B Output
A Output
1
0
1
0
1
0
X
Z
Table 6. Receiving
RE
A–B Input
RO Output
0
≥ +0.2 V
1
0
≤ 0.2 V
0
Inputs open
1
X
Z
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