參數(shù)資料
型號(hào)： SAB-C161JI-32RF
廠商： INFINEON TECHNOLOGIES AG
英文描述： 16-Bit Single-Chip Microcontroller
中文描述： 16位單片機(jī)
文件頁(yè)數(shù)： 62/89頁(yè)
文件大小： 876K
代理商： SAB-C161JI-32RF
C161CS/JC/JI-32R
C161CS/JC/JI-L
Data Sheet
58
V3.0, 2001-01
The timings listed in the AC Characteristics that refer to TCLs therefore must be
calculated using the minimum TCL that is possible under the respective circumstances.
The actual minimum value for TCL depends on the jitter of the PLL. As the PLL is
constantly adjusting its output frequency so it corresponds to the applied input frequency
(crystal or oscillator) the relative deviation for periods of more than one TCL is lower than
for one single TCL (see formula and
Figure 12
).
For a period of
N
×
TCL the minimum value is computed using the corresponding
deviation D
N
:
(
N
×
TCL)
min
=
N
×
TCL
NOM
- D
N
D
N
[ns] =
±
(13.3 +
N
×
6.3) /
f
CPU
[MHz],
where
N
= number of consecutive TCLs
So for a period of 3 TCLs @ 25 MHz (i.e.
N
= 3): D
3
= (13.3 +
3
×
6.3) / 25 = 1.288 ns,
and (3TCL)
min
= 3TCL
NOM
- 1.288 ns = 58.7 ns (@
f
CPU
= 25 MHz).
This is especially important for bus cycles using waitstates and e.g. for the operation of
timers, serial interfaces, etc. For all slower operations and longer periods (e.g. pulse
train generation or measurement, lower baudrates, etc.) the deviation caused by the PLL
jitter is neglectible.
Note: For all periods longer than 40 TCL the N = 40 value can be used (see
Figure 12
).
and 1
≤
N
≤
40.
Figure 12
Approximated Maximum Accumulated PLL Jitter
MCD04455
N
Max. jitter
D
N
±1
±10
±20
±30
ns
±26.5
1
10
20
40
This approximated formula is valid for
1
N
<
CPU
<
10 MHz
16 MHz
20 MHz
25 MHz
30
<
<
相關(guān)PDF資料
PDF描述
SAB-C161JI-LF 16-Bit Single-Chip Microcontroller
SAK-C161CS-32RF 16-Bit Single-Chip Microcontroller
SAK-C161CS-LF 16-Bit Single-Chip Microcontroller
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAB-C161JI-LF 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:16-Bit Single-Chip Microcontroller
SAB-C161JI-LF CA 功能描述:16位微控制器 - MCU 16BIT ROM/ROMLESS RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
SAB-C161JI-LFCA 制造商:Infineon Technologies AG 功能描述:
SAB-C161K-L16M 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:16-Bit CMOS Single-Chip Microcontroller
SAB-C161K-L25M 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:16-Bit Single-Chip Microcontroller
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