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参数资料
| 型号： | STR711FR0T3 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, FLASH, 66 MHz, RISC MICROCONTROLLER, PQFP64 |
| 封装： | 10 X 10 MM, LQFP-64 |
| 文件页数： | 38/78页 |
| 文件大小： | 2018K |
| 代理商： | STR711FR0T3 |
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STR71xF
Electrical parameters
43/78
OSC32K crystal / ceramic resonator oscillator
The STR7 RTC clock can be supplied with a 32 kHz Crystal/Ceramic resonator oscillators.
All the information given in this paragraph are based on characterization results with
specified typical external components. In the application, the resonator and the load
capacitors have to be placed as close as possible to the oscillator pins in order to minimize
output distortion and start-up stabilization time. Refer to the crystal resonator manufacturer
for more details (frequency, package, accuracy...).
Notes:
1.
The oscillator selection can be optimized in terms of supply current using an high quality resonator with
small RS value for example MSIV-TIN32.768kHz. Refer to crystal manufacturer for more details
2.
tSU(OSC32KHZ) is the start-up time measured from the moment it is enabled (by software) to a stabilized
32 kHz oscillation is reached. This value is measured for a standard crystal resonator and it can vary
significantly with the crystal manufacturer
Figure 15.
Typical application with a 32 kHz crystal
Table 20.
32K oscillator characteristics (fOSC32K= 32.768 kHz)
Symbol
Parameter
Conditions
Typ
Unit
RF
Feedback resistor
2.7
M
CL1
CL2
Recommended load capacitance
versus equivalent serial resistance
of the crystal (RS)
1)
RS=40K
12.5
pF
i2
RTCXT2 driving current
V33=3.3 V
VIN=VSS
3.2
A
gm
Oscillator Transconductance
8
A/V
tSU(OSC32KHZ)
2)
startup time
V33 is stabilized
5s
RTCXT2
RTCXT1
fOSC32K
CL1
CL2
i2
RF
STR710
32 kHz
WHEN RESONATOR WITH
INTEGRATED CAPACITORS
RESONATOR
FEEDBACK
LOOP
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相关代理商/技术参数 |
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| STR711FR0T6 | 功能描述:ARM微控制器 - MCU TQFP 64 10x10x1.4 1 RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
| STR711FR0XX | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ARM7TDMI⑩ 32-bit MCU with Flash, USB, CAN 5 timers, ADC, 10 communications interfaces |
| STR711FR1 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ARM7TDMI⑩ 32-bit MCU with Flash, USB, CAN 5 timers, ADC, 10 communications interfaces |
| STR711FR1H6 | 功能描述:ARM微控制器 - MCU MCU 256KB STR71x ARM7TDMI RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
| STR711FR1T6 | 功能描述:ARM微控制器 - MCU 128K Flash 16K RAM RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
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