数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

SN260 数据表(PDF) 20 Page - STMicroelectronics

部件名 SN260
功能描述  ZigBee® 802.15.4 network processor
PDF  88 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

SN260 数据表(HTML) 20 Page - STMicroelectronics

Back Button SN260 Datasheet HTML 16Page - STMicroelectronics SN260 Datasheet HTML 17Page - STMicroelectronics SN260 Datasheet HTML 18Page - STMicroelectronics SN260 Datasheet HTML 19Page - STMicroelectronics SN260 Datasheet HTML 20Page - STMicroelectronics SN260 Datasheet HTML 21Page - STMicroelectronics SN260 Datasheet HTML 22Page - STMicroelectronics SN260 Datasheet HTML 23Page - STMicroelectronics SN260 Datasheet HTML 24Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 20 / 88 page
background image
Functional description
SN260
20/88
Table 12 lists the specifications for the high-frequency crystal.
5.10.2
Internal RC oscillator
The SN260 has a low-power, low-frequency RC oscillator that runs all the time. Its nominal
frequency is 10kHz. It is divided down to 1kHz using a variable divider to allow software to
accurately calibrate it. This calibrated clock is used by the sleep timer.
Time-keeping accuracy depends on temperature fluctuations the chip is exposed to, power
supply impedance, and the calibration interval, but in general it will be better than 150ppm
(including crystal error of 40ppm).
Table 13 lists the specifications of the RC oscillator.
Table 12.
High-frequency crystal specifications
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Frequency
24
MHz
Duty cycle
40
60
%
Phase noise from 1kHz to
100kHz
- 120
dBc/Hz
Accuracy
Initial, temperature, and aging
- 40
+ 40
ppm
Crystal ESR
Load capacitance of 10pF
100
W
Crystal ESR
Load capacitance of 18pF
60
W
Start-up time to stable
clock (max. bias)
1ms
Start-up time to stable
clock (optimum bias)
2ms
Current consumption
Good crystal: 20
Ω ESR, 10pF load
0.2
0.3
mA
Current consumption
Worst-case crystals (60
Ω, 18pF or
100
Ω, 10pF)
0.5
mA
Current consumption
At maximum bias
1
mA
Table 13.
RC oscillator specifications
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Frequency
10
kHz
Analog trim steps
1
kHz
Frequency variation with supply
For a voltage drop from 3.6V
to 3.1V or 2.6V to 2.1V
0.75
1.5
%



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 85 86 87 88


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
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