Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

Preview PDF HTML

82801E Datasheet(PDF) 51 Page - Intel Corporation

Part # 82801E
Description  Intel 82801E Communications I/O Controller Hub (C-ICH)
PDF  84 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  INTEL [Intel Corporation]
Direct Link  http://www.intel.com
Logo INTEL - Intel Corporation

82801E Datasheet(HTML) 51 Page - Intel Corporation

Back Button 82801E Datasheet HTML 47Page - Intel Corporation 82801E Datasheet HTML 48Page - Intel Corporation 82801E Datasheet HTML 49Page - Intel Corporation 82801E Datasheet HTML 50Page - Intel Corporation 82801E Datasheet HTML 51Page - Intel Corporation 82801E Datasheet HTML 52Page - Intel Corporation 82801E Datasheet HTML 53Page - Intel Corporation 82801E Datasheet HTML 54Page - Intel Corporation 82801E Datasheet HTML 55Page - Intel Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 51 / 84 page
background image
Intel® 82801E C-ICH
Advance Information Datasheet
51
3.3.4
V5REF/Vcc3_3 Sequencing Requirements
V5REF is the reference voltage for 5 V tolerance on inputs to the 82801E C-ICH. V5REF must
power up before or simultaneous to Vcc3_3, and must power down after or simultaneous to
Vcc3_3. Refer to Figure 8 for an example circuit schematic that may be used to ensure proper
V5REF sequencing.
3.4
Power Planes and Pin States
3.4.1
Power Planes
Figure 8. Example V5REF Sequencing Circuit
Table 29. 82801E C-ICH Power Planes
Plane
Description
Main I/O
(3.3 V)
Vcc3_3: Powered by the main power supply.
Main Logic
(1.8 V)
Vcc1_8: Powered by the main power supply.
Processor Interface
(1.3 ~ 2.5 V)
V_CPU_IO: Powered by the main power supply via processor voltage regulator.
RTC
VccRTC: When other power is available (from the main supply), external diode
coupling will provide power to reduce the drain on the RTC battery. Assumed to operate
from 3.3 V down to 2.0 V.
VCC Supply
(3.3V)
5V Supply
1k
1 uF
5VREF
To System
To System
Schottky
Diode



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com