поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

FM3130-DG датащи(PDF) 5 Page - Ramtron International Corporation

номер детали FM3130-DG
подробное описание детали  Integrated RTC/Alarm and 64Kb F-RAM
Download  22 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  RAMTRON [Ramtron International Corporation]
домашняя страница  http://www.ramtron.com
Logo RAMTRON - Ramtron International Corporation

FM3130-DG датащи(HTML) 5 Page - Ramtron International Corporation

  FM3130-DG Datasheet HTML 1Page - Ramtron International Corporation FM3130-DG Datasheet HTML 2Page - Ramtron International Corporation FM3130-DG Datasheet HTML 3Page - Ramtron International Corporation FM3130-DG Datasheet HTML 4Page - Ramtron International Corporation FM3130-DG Datasheet HTML 5Page - Ramtron International Corporation FM3130-DG Datasheet HTML 6Page - Ramtron International Corporation FM3130-DG Datasheet HTML 7Page - Ramtron International Corporation FM3130-DG Datasheet HTML 8Page - Ramtron International Corporation FM3130-DG Datasheet HTML 9Page - Ramtron International Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 22 page
background image
O
BS
O
LE
TE
N
o
D
ire
ct
R
ep
la
ce
m
en
t
Al
te
rn
at
iv
e:
FM
31
64
FM3130 Integrated RTC/Alarm with 64Kb FRAM
Rev. 3.2
Sept. 2011
Page 5 of 22
Figure 3. External Oscillator
In the example, R1 and R2 are chosen such that the
X2 voltage is centered around the oscillator drive
levels. If you wish to avoid the DC current, you may
choose to drive X1 with an external clock and X2
with an inverted clock using a CMOS inverter.
Layout Recommendations
The X1 and X2 crystal pins employ very high
impedance circuits and the oscillator connected to
these pins can be upset by noise or extra loading. To
reduce RTC clock errors from signal switching noise,
a guard ring should be placed around these pads and
the guard ring grounded. SDA and SCL traces should
be routed away from the X1/X2 pads. The X1 and X2
trace lengths should be less than 5 mm. The use of a
ground plane on the backside or inner board layer is
preferred. See layout example. Red is the top layer,
green is the bottom layer.
Layout for Surface Mount Crystal
Layout for Through Hole Crystal
(red = top layer, green = bottom layer)
(red = top layer, green = bottom layer)
Table 2. Calibration Adjustments
Positive Calibration for slow clocks: Calibration will achieve
 2.17 PPM after calibration
Measured Frequency Range
Error Range (PPM)
Min
Max
Min
Max
Program Calibration Register to:
0
512.0000
511.9989
0
2.17
000000
1
511.9989
511.9967
2.18
6.51
100001
2
511.9967
511.9944
6.52
10.85
100010
3
511.9944
511.9922
10.86
15.19
100011
4
511.9922
511.9900
15.20
19.53
100100
5
511.9900
511.9878
19.54
23.87
100101
6
511.9878
511.9856
23.88
28.21
100110
7
511.9856
511.9833
28.22
32.55
100111
8
511.9833
511.9811
32.56
36.89
101000
9
511.9811
511.9789
36.90
41.23
101001
10
511.9789
511.9767
41.24
45.57
101010
11
511.9767
511.9744
45.58
49.91
101011
12
511.9744
511.9722
49.92
54.25
101100
13
511.9722
511.9700
54.26
58.59
101101
14
511.9700
511.9678
58.60
62.93
101110
15
511.9678
511.9656
62.94
67.27
101111
16
511.9656
511.9633
67.28
71.61
110000
17
511.9633
511.9611
71.62
75.95
110001
18
511.9611
511.9589
75.96
80.29
110010
19
511.9589
511.9567
80.30
84.63
110011
20
511.9567
511.9544
84.64
88.97
110100
21
511.9544
511.9522
88.98
93.31
110101
22
511.9522
511.9500
93.32
97.65
110110
23
511.9500
511.9478
97.66
101.99
110111
X1
Vdd
FM3130
R1
R2
X1
X2
VBAK
VSS
X1
X2
VBAK
VSS


Аналогичный номер детали - FM3130-DG

производительномер деталидатащиподробное описание детали
logo
Ramtron International C...
FM3130-DG RAMTRON-FM3130-DG Datasheet
262Kb / 22P
   Integrated RTC/Alarm and 64Kb FRAM
More results

Аналогичное описание - FM3130-DG

производительномер деталидатащиподробное описание детали
logo
Ramtron International C...
FM3130 RAMTRON-FM3130 Datasheet
262Kb / 22P
   Integrated RTC/Alarm and 64Kb FRAM
FM3135 RAMTRON-FM3135 Datasheet
267Kb / 21P
   Integrated RTC/Alarm/F-RAM & Embedded Crystal
logo
Cypress Semiconductor
FM25CL64B CYPRESS-FM25CL64B_13 Datasheet
444Kb / 17P
   64Kb Serial 3V F-RAM Memory
FM1608B CYPRESS-FM1608B Datasheet
342Kb / 14P
   64Kb Bytewide 5V F-RAM Memory
FM24CL64B CYPRESS-FM24CL64B_13 Datasheet
342Kb / 13P
   64Kb Serial 3V F-RAM Memory
FM24C64B CYPRESS-FM24C64B_13 Datasheet
352Kb / 15P
   64Kb Serial 5V F-RAM Memory
logo
Ramtron International C...
FM25CL64B RAMTRON-FM25CL64B Datasheet
307Kb / 14P
   64Kb Serial 3V F-RAM Memory
FM1608B RAMTRON-FM1608B Datasheet
94Kb / 11P
   64Kb Bytewide 5V F-RAM Memory
FM25640B RAMTRON-FM25640B Datasheet
213Kb / 13P
   64Kb Serial 5V F-RAM Memory
FM25640C RAMTRON-FM25640C Datasheet
321Kb / 13P
   64Kb Serial 5V F-RAM Memory
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
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