參數(shù)資料
型號: SP1485EMN-L/TR
廠商: Exar Corporation
文件頁數(shù): 5/8頁
文件大?。?/td> 0K
描述: IC TXRX RS485 DIFF ESD 8SOIC
標準包裝: 2,500
類型: 收發(fā)器
驅(qū)動器/接收器數(shù): 1/1
規(guī)程: RS422,RS485
電源電壓: 4.25 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(yīng)商設(shè)備封裝: 8-SOICN
包裝: 帶卷 (TR)
5
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP48E-485E_03_05243
INPUTS
OUTPUTS
LINE
RE DE DI CONDITION
B
A
X
1
NoFault
0
1
X
1
0
NoFault
1
0
X
0
X
Z
X
1
X
Fault
Z
INPUTS
OUTPUTS
RE
DE
A-B
R
0
+0.2V
1
0
-0.2V
0
0
InputsOpen
1
1
0
X
Z
Table1.TransmitFunctionTruthTable
Table2.ReceiveFunctionTruthTable
+3V
0V
DE
5V
VOL
A,B
0V
1.5V
tZL
tZH
f = 1MHz; tR< 1ns ; tF < 1ns
VOH
A,B
2.3V
tLZ
tHZ
0.5V
Output normally LOW
Output normally HIGH
+3V
0V
5V
0V
1.5V
tZL
tZH
f = 1MHz; tR ≤ 1ns; tF ≤ 1ns
R
1.5V
tLZ
tHZ
0.5V
Output normally LOW
Output normally HIGH
VIL
VIH
R
RE
Figure8.ReceiverEnableandDisableTimes
Figure7.ReceiverPropagationDelays
Figure6.DriverEnableandDisableTimes
VOH
VOL
R
1.5V
tPHL
f = 1MHz; tR 10ns; tF ≤ 10ns
OUTPUT
VOD2+
VOD2
A – B
0V
tPLH
INPUT
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