參數(shù)資料
型號: ADM487EWARZ-REEL7
廠商: Analog Devices Inc
文件頁數(shù): 14/16頁
文件大?。?/td> 0K
描述: IC TXRX HALF DUP RS485/422 8SOIC
標準包裝: 1,000
類型: 收發(fā)器
驅動器/接收器數(shù): 1/1
規(guī)程: RS422,RS485
電源電壓: 4.75 V ~ 5.25 V
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應商設備封裝: 8-SO
包裝: 帶卷 (TR)
ADM485E/ADM487E/ADM1487E
Rev. B | Page 7 of 16
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
ADM485E/
ADM487E/
ADM1487E
TOP VIEW
(Not to Scale)
RO
1
RE
2
DE
3
DI
4
VCC
8
B
7
A
6
GND
5
06
35
6-
00
2
Figure 2. Pin Configuration
Table 6. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
RO
Receiver Output. When enabled, if A > B by 200 mV, then RO = high. If A < B by 200 mV, then RO = low.
2
RE
Receiver Output Enable. A low level enables the RO; a high level places it in a high impedance state.
3
DE
Driver Output Enable. A high level enables the driver differential outputs, Pin A and Pin B; a low level places
the driver in a high impedance state.
4
DI
Driver Input. When the driver is enabled, a logic low on DI forces Pin A low and Pin B high; a logic high on DI
forces Pin A high and Pin 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 ± 10%).
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