データシートサーチシステム
  Japanese  ▼
ALLDATASHEET.JP

X  

Preview PDF HTML

ADT7462ACPZ-R7 データシート(PDF) 60 Page - ON Semiconductor

部品番号 ADT7462ACPZ-R7
部品情報  Flexible Temperature, Voltage Monitor, and System Fan Controller
PDF  81 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
メーカー  ONSEMI [ON Semiconductor]
ホームページ  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

ADT7462ACPZ-R7 データシート(HTML) 60 Page - ON Semiconductor

Back Button ADT7462ACPZ-R7 Datasheet HTML 56Page - ON Semiconductor ADT7462ACPZ-R7 Datasheet HTML 57Page - ON Semiconductor ADT7462ACPZ-R7 Datasheet HTML 58Page - ON Semiconductor ADT7462ACPZ-R7 Datasheet HTML 59Page - ON Semiconductor ADT7462ACPZ-R7 Datasheet HTML 60Page - ON Semiconductor ADT7462ACPZ-R7 Datasheet HTML 61Page - ON Semiconductor ADT7462ACPZ-R7 Datasheet HTML 62Page - ON Semiconductor ADT7462ACPZ-R7 Datasheet HTML 63Page - ON Semiconductor ADT7462ACPZ-R7 Datasheet HTML 64Page - ON Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 60 / 81 page
background image
ADT7462
http://onsemi.com
60
Table 31. Register 0x00 — Configuration Register 0 (Note 1)
Bit
Name
R/W
Description
[5:0]
#Bytes Block
Read
R/W
These bits set the number of registers to be read in a block read. Default = 0x20.
6
VID Decoder
R/W
0 = VR10 Decoding Spec; 1 = VR11 Decoding Spec. Default = 0.
7
SW Reset
R/W
Setting this bit to 1 restores all unlocked registers to their default values. Self−clearing. Write
0x6D to register 0x7B before setting this bit to get a software reset. Default = 0.
1. POR = 0x20, Lock = Y, SW Reset = Y.
Table 32. Register 0x01 — Configuration Register 1 (Note 1)
Bit
Name
R/W
Description
0
Monitor
R/W
Setting this bit to 1 enables temperature and voltage measurements. When this bit is set to 0,
temperature and voltage measurements are disabled. Default = 1.
1
Reserved
R/W
Reserved. Default = 0.
2
Reserved
R/W
Reserved. Default = 0.
3
ALERT Mode
R/W
This bit sets the ALERT mode in the ADT7462. 1 = comparator mode, 0 = SMBALERT mode
(default).
4
Disable Fast
Spin−Up
R/W
Setting this bit to 1 disables the fast spin−up (for two TACH pulses) for the fans. Instead, the
fans spin up for the programmed fan startup timeout. Default = 0.
5
Setup Complete
R/W
Setting this bit to 1 tells the ADT7462 that setup is complete and that monitoring of all selected
channels should begin. Default = 0.
6
Lock
Write
Once
Logic 1 locks all limit values at their current settings. When this bit is set, all lockable registers
become read−only and cannot be modified until the ADT7462 is powered down and powered
up again. This prevents rogue programs, such as viruses, from modifying critical system limit
settings. Lockable.
7
RDY
R
This bit is set to 1 to indicate that the ADT7462 is fully powered up and ready to start
monitoring.
1. POR = 0x81, Lock = Y, SW Reset = Y.
Table 33. Register 0x02 — Configuration Register 2 (Note 1)
Bit
Name
R/W
Description
0
FAST
R/W
In low frequency, PWM fan speed measurements are made once a second. Setting this bit to 1
increases the frequency of the fan speed measurements to 4 times a second. Default = 0.
1
Reserved
R/W
Reserved. Default = 0.
2
PWM Mode
R/W
This bit sets the PWM frequency mode. 0 = low frequency PWM; frequency programmable
between 11 Hz and 88.2 Hz. Default = 35.3 Hz. 1 = high frequency mode, 22.5 kHz.
3
VRD1 Boost
R/W
Setting this bit to 0 causes the fans to go to full speed on assertion of VRD1. Default = 0.
When this bit is set to 1, VRD1 assertions have no effect on the fan speed.
4
VRD2 Boost
R/W
Setting this bit to 0 causes the fans to go to full speed on assertion of VRD2. Default = 0.
When this bit is set to 1, VRD2 assertions have no effect on the fan speed.
5
Fans Full Speed
R/W
Setting this bit to 1 drives the fans to full speed. Default = 0.
[7:6]
#TACH Pulses
R/W
In low frequency mode, the ADT7462 must pulse stretch to get an accurate fan speed
measurement. The speed is always measured between the 2nd rising edge and one × TACH
pulses later. This bit determines the last TACH pulse. Therefore, if the fan speed is to be
measured between the second and fourth TACH pulse, 01 is written to these bits.
x = 1 = 00
x = 2 = 01
x = 3 = 10 (default)
x = 4 = 11
1. POR = 0x80, Lock = Y, SW Reset = Y.



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


データシート ダウンロード

Go To PDF Page


リンク URL



ALLDATASHEETはお客様のビジネスに役立ちますか？  [ DONATE ] 

Alldatasheetは   |   広告   |   お問い合わせ   |   プライバシーポリシー   |   データシートへのリンク    |   リンク交換   |   メーカーリスト
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