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参数资料
| 型号： | STM32F100CBT7BTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, FLASH, 24 MHz, RISC MICROCONTROLLER, PQFP48 |
| 封装： | 7 X 7 MM, ROHS COMPLIANT, LQFP-48 |
| 文件页数： | 80/86页 |
| 文件大小： | 1198K |
| 代理商： | STM32F100CBT7BTR |
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STM32F100x4, STM32F100x6, STM32F100x8, STM32F100xB
Package characteristics
Doc ID 16455 Rev 3
6.2.2
Selecting the product temperature range
When ordering the microcontroller, the temperature range is specified in the ordering
information scheme shown in Table 52: Ordering information scheme.
Each temperature range suffix corresponds to a specific guaranteed ambient temperature at
maximum dissipation and, to a specific maximum junction temperature.
As applications do not commonly use the STM32F10xxx at maximum dissipation, it is useful
to calculate the exact power consumption and junction temperature to determine which
temperature range will be best suited to the application.
The following examples show how to calculate the temperature range needed for a given
application.
Example: high-performance application
Assuming the following application conditions:
Maximum ambient temperature TAmax = 82 °C (measured according to JESD51-2),
IDDmax = 50 mA, VDD = 3.5 V, maximum 20 I/Os used at the same time in output at low
level with IOL = 8 mA, VOL= 0.4 V and maximum 8 I/Os used at the same time in output
mode at low level with IOL = 20 mA, VOL= 1.3 V
PINTmax = 50 mA × 3.5 V= 175 mW
PIOmax = 20 × 8 mA × 0.4 V + 8 × 20 mA × 1.3 V = 272 mW
This gives: PINTmax = 175 mW and PIOmax = 272 mW
PDmax = 175 + 272 = 447 mW
Thus: PDmax = 447 mW
–
For LQFP64, 45 °C/W
TJmax = 82 °C + (45 °C/W × 447 mW) = 82 °C + 20.1 °C = 102.1 °C
This is within the range of the suffix 6 version parts (–40 < TJ < 105 °C).
In this case, parts must be ordered at least with the temperature range suffix 6 (see
Example 2: High-temperature application
Using the same rules, it is possible to address applications that run at high ambient
temperatures with a low dissipation, as long as junction temperature TJ remains within the
specified range.
Assuming the following application conditions:
Maximum ambient temperature TAmax = 115 °C (measured according to JESD51-2),
IDDmax = 20 mA, VDD = 3.5 V, maximum 20 I/Os used at the same time in output at low
level with IOL = 8 mA, VOL= 0.4 V
PINTmax = 20 mA × 3.5 V= 70 mW
PIOmax = 20 × 8 mA × 0.4 V = 64 mW
This gives: PINTmax = 70 mW and PIOmax = 64 mW:
PDmax = 70 + 64 = 134 mW
Thus: PDmax = 134 mW
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相关代理商/技术参数 |
参数描述 |
|---|---|
| STM32F100D | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:High-density value line, advanced ARM-based 32-bit MCU with 256 to 512 KB Flash, 16 timers, ADC, DAC & 11 comm interfaces |
| STM32F100E | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:High-density value line, advanced ARM-based 32-bit MCU with 256 to 512 KB Flash, 16 timers, ADC, DAC & 11 comm interfaces |
| STM32F100R4H6B | 功能描述:ARM微控制器 - MCU 32BIT CORTEX M3 16K Flash 4KB 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 |
| STM32F100R4H6BTR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Low & medium-density value line, advanced ARM-based 32-bit MCU Low & medium-density value line, advanced ARM-based 32-bit MCU |
| STM32F100R4H7B | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Low & medium-density value line, advanced ARM-based 32-bit MCU Low & medium-density value line, advanced ARM-based 32-bit MCU |
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