參數(shù)資料
型號(hào): 8502
廠商: LSI Corporation
英文描述: Ethernet MII(Media Independent Interface) to AUI(Attachment Unit Interface) Interface Adapter(以太網(wǎng)獨(dú)立于媒體接口與附屬單元接口適配器)
中文描述: 以太網(wǎng)MII(媒體獨(dú)立接口)的投資者聯(lián)盟(連接單元接口)接口適配器(以太網(wǎng)獨(dú)立于媒體接口與附屬單元接口適配器)
文件頁數(shù): 34/55頁
文件大小: 457K
代理商: 8502
8502
4-34
MD400157/D
5.0 Specifications
ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are limits beyond which may
cause permanent damage to the device or affect device
reliability. All voltages are specified with respect to GND,
GND unless otherwise specified.
V
CC
Supply Voltage ........................................ –3V to 7V
All Inputs and Outputs............................ –3V to V
CC
+.3V
Input Latchup Current ..................................... +/-25 mA
Package Power Dissipation ................... 3 Watt @ 25
°
C
Storage Temperature .............................. –65 to +150
°
C
Operating Temperature............................. –65 to +85
°
C
Lead Temperature (Soldering, 10 Sec)................ 250
°
C
capacitors on each VCC/GND set, one 0.1
μ
F for low
freuqency and one 0.001
μ
F for high frequency noise on
the power supply.
The PCB layout and power supply decoupling discussed
above should provide sufficient decoupling to acheive the
following when measured at the device: (1) the resultant
AC noise voltage measured across each VCC/GND set
should be less than 100 mVpp, (2) all VCC's should be
within 50 mVpp of each other, and (3) all GND's should be
within 50 mVpp of each other.
Figure 12. MI Serial Port Address Selection
a.) OUTPUT DRIVER / INPUT ADDRESS CORRESPONDENCE
b.) SETTING ADDRESS WITH LEDs
c.) SETTING ADDRESS WITHOUT LEDs
500
500
50 K
HIGH
LOW
PLED1
PLED0
PLED1
PLED0
HIGH
LOW
FLOAT
PLED1
PLED0
PLED1
PLED0
MDA1
MDA0
PLED1
PLED0
10 K
(OPTIONAL)
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