參數(shù)資料
型號： STM32F101R8T6TR
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 36 MHz, RISC MICROCONTROLLER, PQFP64
封裝： 10 X 10 MM, ROHS COMPLIANT, LQFP-64
文件頁數(shù)： 41/81頁
文件大小： 988K
代理商： STM32F101R8T6TR
Electrical characteristics
STM32F101x8, STM32F101xB
Doc ID 13586 Rev 12
resonator manufacturer for more details on the resonator characteristics (frequency,
package, accuracy).
Note:
For CL1 and CL2 it is recommended to use high-quality ceramic capacitors in the 5 pF to
15 pF range selected to match the requirements of the crystal or resonator. CL1 and CL2, are
usually the same size. The crystal manufacturer typically specifies a load capacitance which
is the series combination of CL1 and CL2.
Load capacitance CL has the following formula: CL = CL1 x CL2 / (CL1 + CL2) + Cstray where
Cstray is the pin capacitance and board or trace PCB-related capacitance. Typically, it is
between 2 pF and 7 pF.
Caution:
To avoid exceeding the maximum value of CL1 and CL2 (15 pF) it is strongly recommended
to use a resonator with a load capacitance CL 7 pF. Never use a resonator with a load
capacitance of 12.5 pF.
Example: if you choose a resonator with a load capacitance of CL = 6 pF, and Cstray = 2 pF,
then CL1 = CL2 = 8 pF.
Figure 21.
Typical application with a 32.768 kHz crystal
Table 22.
LSE oscillator characteristics (fLSE = 32.768 kHz)
(1)
1.
Based on characterization, not tested in production.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
RF
Feedback resistor
5
M
C(2)
2.
Refer to the note and caution paragraphs below the table, and to the application note AN2867 “Oscillator
design guide for ST microcontrollers”.
Recommended load capacitance
versus equivalent serial
resistance of the crystal (RS)
(3)
3.
The oscillator selection can be optimized in terms of supply current using an high quality resonator with
small RS value for example MSIV-TIN32.768 kHz. Refer to crystal manufacturer for more details
RS = 30 K
15
pF
I2
LSE driving current
VDD = 3.3 V
VIN = VSS
1.4
A
gm
Oscillator transconductance
5
A/V
tSU(LSE)
(4)
4.
tSU(LSE) is the startup time measured from the moment it is enabled (by software) to a stabilized
32.768 kHz oscillation is reached. This value is measured for a standard crystal resonator and it can vary
significantly with the crystal manufacturer
Startup time
VDD is stabilized
3
s
ai14129b
OSC32_OU T
OSC32_IN
fLSE
CL1
RF
STM32F10xxx
32.768 KH z
resonator
Resonator with
integrated capacitors
Bias
controlled
gain
CL2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
STM32F101R8T6XXX 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Medium-density access line, ARM-based 32-bit MCU with 64 or 128 KB Flash, 6 timers, ADC and 7 communication interfaces
STM32F101R8U6TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Medium-density access line, ARM-based 32-bit MCU with 64 or 128 KB Flash, 6 timers, ADC and 7 communication interfaces
STM32F101R8U6XXX 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Medium-density access line, ARM-based 32-bit MCU with 64 or 128 KB Flash, 6 timers, ADC and 7 communication interfaces
STM32F101RB 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Medium-density access line, ARM-based 32-bit MCU with 64 or 128 KB Flash, 6 timers, ADC and 7 communication interfaces
STM32F101RBH6 功能描述:ARM微控制器 - MCU 32BIT Cortex M3 36MHz, 64pins RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風格:SMD/SMT
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