參數(shù)資料
型號(hào): ADM487E
廠商: Analog Devices, Inc.
英文描述: 5 V, 【15 kV ESD Protected Half-Duplex, RS-485/RS-422 Transceivers
中文描述: 5,【15千伏ESD保護(hù)半V型雙工,RS-485/RS-422收發(fā)器
文件頁(yè)數(shù): 7/16頁(yè)
文件大小: 297K
代理商: ADM487E
ADM485E/ADM487E/ADM1487E
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Rev. 0 | Page 7 of 16
ADM485E/
ADM487E/
ADM1487E
TOP VIEW
(Not to Scale)
RO
1
RE
2
DE
3
DI
4
V
CC
8
B
7
A
6
GND
5
0
Figure 2. Pin Configuration
Table 6. Pin Function Descriptions
Pin No.
Mnemonic
1
RO
2
RE
3
DE
Description
Receiver Output. When enabled, if A > B by 200 mV, then RO = high. If A < B by 200 mV, then RO = low.
Receiver Output Enable. A low level enables the RO; a high level places it in a high impedance state.
Driver Output Enable. A high level enables the driver differential outputs, Pin A and Pin B; a low level places it
in a high impedance state.
Driver Input. When the driver is enabled, a Logic L = low on DI forces A low and B high; a Logic H = high on DI
forces Pin A high and Pin B low.
Ground Connection (0 V).
Noninverting Receiver Input A/Driver Output A.
Inverting Receiver Input B/Driver Output B.
Power Supply (5 V ± 5%).
4
DI
5
6
7
8
GND
A
B
V
CC
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ADM488 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers