參數(shù)資料
型號: L80227
廠商: LSI CORP
元件分類: 網(wǎng)絡接口
英文描述: 10BASE-T/100BASE-TX Ethernet Physical Layer Device (PHY)(10BASE-T/100BASE-TX 以太網(wǎng)物理層處理器)
中文描述: DATACOM, ETHERNET TRANSCEIVER, PQFP64
封裝: LQFP-64
文件頁數(shù): 149/158頁
文件大?。?/td> 1084K
代理商: L80227
Draft 6/5/00
LED Drivers
A-15
Copyright 1999 by LSI Logic Corporation. All rights reserved.
A.10 LED Drivers
The PLED[5:0] outputs can all drive LEDs tied to V
DD
as shown in
Figure A.1
through
Figure A.3
. The PLED[1:0] outputs can drive LEDs
tied to either V
DD
or GND.
The PLED[5:0] outputs can also drive other digital inputs, so they can
also be used as digital outputs whose function can be user-defined and
controlled through the MI serial port.
A.11 Power Supply Decoupling
There are nine V
DD
pins on the L80227 and seven GND pins.
All the V
DD
pins should be connected together as closely as possible to
the device with a large V
DD
plane. If the V
DD
pins vary in potential by
even a small amount, noise and latchup can result. The V
DD
pins should
be kept to within 50 mV of each other.
All the GND pins should also be connected together as closely as
possible to the device with a large ground plane. If the GND pins vary in
potential by even a small amount, noise and latchup can result. The V
DD
pins should be kept to within 50 mV of each other.
A 0.01–0.1 Fdecoupling capacitor should be connected between each
V
DD
/GND set as closely as possible to the device pins, preferably within
Table A.3
Crystal Specifications
Parameter
Spec
Type
Parallel Resonant
Frequency
25 MHz
±
0.01%
Equivalent Series Resistance
40
max
Load Capacitance
18 pF typical
Case Capacitance
7 pF maximum
Power Dissipation
1 mW maximum
相關PDF資料
PDF描述
L8050HPLT1 General Purpose Transistors NPN Silicon
L8050HPLT1G General Purpose Transistors NPN Silicon
L8050HQLT1 General Purpose Transistors NPN Silicon
L8050HQLT1G General Purpose Transistors NPN Silicon
L8050LT1 General Purpose Transistors NPN Silicon
相關代理商/技術(shù)參數(shù)
參數(shù)描述
L80227/B 制造商:LSI Corporation 功能描述: 制造商:LSI Corporation 功能描述:L80227/B
L80227/BI 制造商:LSI Corporation 功能描述:L80227/BI
L80227FR 制造商:LAUREL ELECTRONICS 功能描述:Laureate 1/8 DIN multi-function counter / timer, universal 85-264 Vac power, two
L80227-I 制造商:LSI Corporation 功能描述:STD CELL ASIC
L80227-I-LEADFREE 制造商:LSI Corporation 功能描述:796000124413