参数资料
型号: STM32F103C6T7XXX
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 72 MHz, RISC MICROCONTROLLER, PQFP48
封装: 7 X 7 MM, ROHS COMPLIANT, LQFP-48
文件页数: 73/80页
文件大小: 1067K
代理商: STM32F103C6T7XXX
STM32F103x4, STM32F103x6
Package characteristics
Doc ID 15060 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 55: 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 STM32F103xx 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 1: 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
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
Using the values obtained in Table 54 TJmax is calculated as follows:
For LQFP64, 45 °C/W
TJmax = 82 °C + (45 °C/W × 447 mW) = 82 °C + 20.115 °C = 102.115 °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
相关PDF资料
PDF描述
STM32F103R6H7ATR 32-BIT, FLASH, 72 MHz, RISC MICROCONTROLLER, PBGA64
STM32F103C4T6ATR 32-BIT, FLASH, 72 MHz, RISC MICROCONTROLLER, PQFP48
STM32F103C4T6TR 32-BIT, FLASH, 72 MHz, RISC MICROCONTROLLER, PQFP48
STM32F103R6T7AXXX 32-BIT, FLASH, 72 MHz, RISC MICROCONTROLLER, PQFP64
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相关代理商/技术参数
参数描述
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STM32F103C6U6ATR 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Low-density performance line, ARM-based 32-bit MCU with 16 or 32 KB Flash, USB, CAN, 6 timers, 2 ADCs, 6 communication interfaces
STM32F103C6U6AXXX 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Low-density performance line, ARM-based 32-bit MCU with 16 or 32 KB Flash, USB, CAN, 6 timers, 2 ADCs, 6 communication interfaces
STM32F103C6U6TR 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Low-density performance line, ARM-based 32-bit MCU with 16 or 32 KB Flash, USB, CAN, 6 timers, 2 ADCs, 6 communication interfaces
STM32F103C6U6XXX 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Low-density performance line, ARM-based 32-bit MCU with 16 or 32 KB Flash, USB, CAN, 6 timers, 2 ADCs, 6 communication interfaces