參數(shù)資料
型號： ST10F269Z2Q3
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP144
封裝： 28 X 28 MM, PLASTIC, QFP-144
文件頁數(shù)： 45/160頁
文件大?。?/td> 1541K
代理商： ST10F269Z2Q3
ST10F269
139/160
The real minimum value for TCL depends on the
jitter of the PLL. The PLL tunes fCPU to keep it
locked on fXTAL. The relative deviation of TCL is
the maximum when it is refered to one TCL
period. It decreases according to the formula and
to the Figure 68 given below. For N periods of TCL
the minimum value is computed using the
corresponding deviation DN:
where N = number of consecutive TCL periods
and 1
≤ N ≤ 40. So for a period of 3 TCL periods
(N = 3):
D3
=
4 - 3/15 = 3.8%
3TCLmin
=3TCLNOM x (1 - 3.8/100)
=3TCLNOM x 0.962
3TCLmin
=
36.075ns (at fCPU = 40MHz)
This is especially important for bus cycles using wait
states 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 Baud rates, etc.) the deviation caused by the
PLL jitter is negligible.
21.4.8 - External Clock Drive XTAL1
VDD = 5V ± 10%, VSS = 0V, TA = -40 to +125 °C
Notes: 1. Theoretical minimum. The real minimum value depends on the duty cycle of the input clock signal. 25MHz is the maximum input
frequency when using an external crystal oscillator. However, 40MHz can be applied with an external clock source.
2. The input clock signal must reach the defined levels VIL and VIH2.
TCL
MIN
TCL
NOM
1
D
N
100
-------------
–
×
=
D
N
4N 15
) %
[]
–
(
±
=
Figure 68 : Approximated Maximum PLL Jitter
Parameter
Symbol
fCPU = fXTAL
fCPU = fXTAL / 2
fCPU = fXTAL x F
F = 1.5/2,/2.5/3/4/5
Unit
min
max
min
max
min
max
Oscillator period
tOSC SR
25 1
–
12.5
–
40 x N
100 x N
ns
High time
t1
SR
10 2
–
5 2
–
10 2
–ns
Low time
t2
SR
10 2
–
5 2
–
10 2
–ns
Rise time
t3
SR
–
3 2
–
3 2
–
3 2
ns
Fall time
t4
SR
–
3 2
–
3 2
–
3 2
ns
32
16
8
4
2
±1
±2
±3
±4
Max.jitter [%]
N
This approximated formula is valid for
1
≤ N ≤ 40 and 10MHz ≤ f
CPU ≤ 40MHz.
相關(guān)PDF資料
PDF描述
ST10F269Z2Q6 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP144
ST10F276Z5Q3 16-BIT, MROM, 64 MHz, RISC MICROCONTROLLER, PQFP144
ST10F296TR 16-BIT, FLASH, 64 MHz, MICROCONTROLLER, PBGA208
ST10R172LT6 16-BIT, 50 MHz, MICROCONTROLLER, PQFP100
ST10R272LT6 16-BIT, 50 MHz, MICROCONTROLLER, PQFP100
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST10F269Z2Q6 功能描述:16位微控制器 - MCU 256K Flash 12K RAM 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 最大時鐘頻率:24 MHz 程序存儲器大小: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
ST10F269Z2Q6/TR 功能描述:16位微控制器 - MCU 16B MCU 256K Byte and 12K Byte RAM 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 最大時鐘頻率:24 MHz 程序存儲器大小: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
ST10F269Z2QX 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:16-BIT MCU WITH MAC UNIT, 256K BYTE FLASH MEMORY AND 12K BYTE RAM
ST10F269Z2T3 功能描述:16位微控制器 - MCU ST10F272 16B MCU 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 最大時鐘頻率:24 MHz 程序存儲器大小: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
ST10F269Z2T6 功能描述:16位微控制器 - MCU ST10F272 16B MCU 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 最大時鐘頻率:24 MHz 程序存儲器大小: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
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*