參數(shù)資料
型號: XE8805AMI028LF
廠商: Semtech
文件頁數(shù): 98/156頁
文件大?。?/td> 0K
描述: IC DAS 16BIT FLASH 8K MTP 64LQFP
標(biāo)準(zhǔn)包裝: 160
系列: XE880x
應(yīng)用: 感測機(jī)
核心處理器: Coolrisc816?
程序存儲器類型: 閃存(22 kB)
控制器系列: XE8000
RAM 容量: 512 x 8
接口: UART,USRT
輸入/輸出數(shù): 24
電源電壓: 2.4 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
包裝: 托盤
供應(yīng)商設(shè)備封裝: 64-LQFP(10x10)
產(chǎn)品目錄頁面: 585 (CN2011-ZH PDF)
配用: XE8000MP-ND - PROG BOARD AND PROSTART2 CARD
Semtech 2006
www.semtech.com
7-5
XE8805/05A
00000
0
010
000
10000
0
1100
00
111
01000
0
10000
0
110
00
0
111
11
1
0100
00
10000
0
1100
00
11111
1
0100
00
100
000
110
00
0
111
010
000
10
0000
11
00
111
00
0000
010
000
10000
0
1100
00
111111 01000
0
100000
110
000
11111
1
0100
00
10000
0
11000
0
11111
1
0100
00
100
000
1100
00
1111
11
0100
00
10
0000
1100
00
111
0000
0001
0011
0111
1111
1E+04
1E+05
1E+06
1E+07
1E+08
RcFreqCoarse(3:0)
Nomina
lRC
os
c
illa
to
rf
re
q
ue
nc
y
[
H
z]
RcFreqRange='1'
RcFreqRange='0'
RcFreqFine(5:0)
Figure 7-2. RC oscillator nominal frequency tuning.
7.5.1.3
RC oscillator specifications
symbol
description
min
typ
max
unit
Comments
fRCmin
Lowest RC frequency
40
80
120
kHz
Note 1
RcFreqFine
fine tuning step
1.4
2.0
%
RC_su
startup time
30
50
us
BiasRc=0
3
5
us
BiasRc=1
PSRR @ DC
Supply voltage
TBD
%/V
Note 2
dependence
TBD
%/V
Note 3
f/T
Temperature
dependence
0.1
%/
°C
Table 7-7. RC oscillator specifications
Note 1: this is the frequency tolerance when all trimming codes are 0.
Note 2: frequency shift as a function of VBAT with normal regulator function.
Note 3: frequency shift as a function of VBAT while the regulator is short-circuited to VBAT.
The tolerances on the minimal frequency and the drift with supply or temperature can be cancelled using the
software DFLL (digital frequency locked loop) which uses the crystal oscillator as a reference frequency.
Not
Recommended
for
New
Designs
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