by the revision code marked below the order code on the device package • by the last three digits of the Internal order code printed on the box label Table 1. Device identification (1)1.The REV_ID bits in the DBGMCU_IDCODE register show the revision code of the device (see the...
41.1.1.1.上电复位与掉电复位(POR与PDR)¶ 当检测到VDD的电压低于阈值VPOR及VPDR时,无需外部电路辅助,STM32芯片会自动保持在复位状态,防止因电压不足强行工作而带来严重的后果。见图42_1,在刚开始电压低于VPOR时(约1.72V),STM32保持在上电复位状态(POR,Power On Reset),当VDD电压持续上升至大于VPOR时,芯...
3. VREF- is either connected to VREF- or to VSSA (depending on package). 4. Refer to datasheet for BYPASS_REG and PDR_ON pins connection. AN4488 Rev 7 11/50 49 Power supplies AN4488 2.3 Analog Supply To improve conversion accuracy, the ADC has an independent power supply that can ...
3.17 Power supply supervisor 3.17.1 Internal reset ON On packages embedding the PDR_ON pin, the power supply supervisor is enabled by holding PDR_ON high. On the other package, the power supply supervisor is always enabled. The device has an integrated power-on reset (POR)/ power-down ...
The internal power-on reset (POR) / power-down reset (PDR) circuitry is disabled through the PDR_ON pin. An external power supply supervisor should monitor VDD and should maintain the device in reset mode as long as VDD is below a specified threshold. PDR_ON should be connected to this ...
The pin PDR_ON used on STM32F429 to enable power supervisor is now managed in static way. Figure 1 and Figure 2 show two examples of board designs migrating from STM32F429 to STM32F446. DocID027496 Rev 1 5/24 23 Hardware migration guide AN4658 Fig...
POR, PDR, PVD and BOR 4-to-26 MHz crystal oscillator Internal 16 MHz factory-trimmed RC (1% accuracy) 32 kHz oscillator for RTC with calibration Internal 32 kHz RC with calibration Sleep, Stop and Standby modes VBATsupply for RTC, 20×32 bit backup registers + optional 4 KB backup SRAM...
POR, PDR, PVD and BOR 4-to-26 MHz crystal oscillator Internal 16 MHz factory-trimmed RC (1% accuracy) 32 kHz oscillator for RTC with calibration Internal 32 kHz RC with calibration Sleep, Stop and Standby modes VBATsupply for RTC, 20×32 bit backup registers + optional 4 KB backup SRAM...
POR, PDR, PVD and BOR 4-to-26 MHz crystal oscillator Internal 16 MHz factory-trimmed RC (1% accuracy) 32 kHz oscillator for RTC with calibration Internal 32 kHz RC with calibration Sleep, Stop and Standby modes VBATsupply for RTC, 20×32 bit backup registers + optional 4 KB backup SRAM...
32-bit Cortex?-M0 CPU, frequency up to 48 MHz Memories – 16 to 64 Kbytes of Flash memory – 4 to 8 Kbytes of SRAM with HW parity checking CRC calculation unit Reset and power management – Voltage range: 2.4 V to 3.6 V – Power-on/Power down reset (POR/PDR) – Low power modes...