參數(shù)資料
型號: XC866L-4RR
廠商: INFINEON TECHNOLOGIES AG
元件分類: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁數(shù): 58/108頁
文件大小: 979K
代理商: XC866L-4RR
XC866
Functional Description
Data Sheet
54
V1.0, 2006-02
Table 19
shows the VCO range for the XC866.
3.8.1
Resonator Circuitry
Figure 23
shows the recommended ceramic resonator circuitry. When using an external
resonator, its frequency can be within the range of 3 MHz to 12 MHz. A resonator load
circuitry must be used, connected to both pins, XTAL1 and XTAL2. It normally consists
of two load capacitances C
1
and C
2
, and in some cases, a feedback (R
f
) and/or damp
(R
d
) resistor might be necessary.
Figure 23
External Ceramic Resonator Circuitry
Note: The manufacturer of the ceramic resonator should check the resonator circuitry
and make recommendations for the C
1
, C
2
, R
f
and R
d
values to be used for stable
start-up behavior.
External
10 MHz
8 MHz
5 MHz
16
20
32
1
1
1
2
2
2
80 MHz
80 MHz
80 MHz
Table 19
VCO Range
f
VCOmin
150
100
f
VCOmax
200
150
f
VCOFREEmin
20
10
f
VCOFREEmax
80
80
Unit
MHz
MHz
Table 18
System frequency (f
sys
= 80 MHz)
fosc
Oscillator
N
P
K
fsys
XC866
C
1
C
2
XTAL1
XTAL2
R
d
R
f
Ceramic
Resonator
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