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STM32H7B3AI 数据表(PDF) 99 Page - STMicroelectronics |
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STM32H7B3AI 数据表(HTML) 99 Page - STMicroelectronics |
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99 / 238 page  Symbol Parameter Conditions Typ LDO Typ SMPS Max(1)(2) Unit TJ = 25 °C TJ = 85 °C TJ = 105 °C TJ= 130 °C IDD(Stop) Stop, DStop2 Flash memory in low -power mode, memory shut-off enable SVOS3 Main(3) mA 0.146 0.337 0.30 1.55 2.63 5.04 SVOS3 LP 0.100 0.040 0.26 1.51 2.58 4.96 SVOS4 0.085 0.033 0.19 1.15 2.01 3.98 SVOS5 0.075 0.028 0.12 0.80 1.46 3.02 1. Guaranteed by characterization results. 2. The maximum values are given for LDO regulator ON. Refer to Section 6.3.3 SMPS step-down converterfor the SMPS maximum current consumption. 3. The SMPS is unnecessarily ON in System Stop mode, leading to an additional consumption. It is recommended to use SVOS3 LP mode to optimize power consumption. Table 41. Typical current consumption RAM shutoff in Stop mode Symbol Parameter Conditions Typ LDO Unit SVOS3 LP SVOS4 SVOS5 ∆IDD(Stop) Stop, Dstop or Dstop2 AXISRAM1 shutoff power consumption (power consumption reduction when AXISRAM1 shutoff is enabled) 3.00 1.80 3.00 µA AXISRAM2 shutoff power consumption (power consumption reduction when AXISRAM2 shutoff is enabled) 4.40 2.70 4.40 AXISRAM13 shutoff power consumption (power consumption reduction when AXISRAM3 shutoff is enabled) 4.40 2.70 4.40 AHBSRAM1 shutoff power consumption (power consumption reduction when AHBSRAM1 shutoff is enabled) 0.90 0.50 0.70 AHBSRAM2 shutoff power consumption (power consumption reduction when AHBSRAM2 shutoff is enabled) 0.90 0.50 0.70 ITCM and ETM shutoff power consumption (power consumption reduction when ITCM and ETM shutoff is enabled) 1.00 0.60 0.90 GFXMMU and JPEG shutoff power consumption (power consumption reduction when GFXMMU and JPEG shutoff is enabled) 0.20 0.10 0.10 High-speed interface USB and FDCAN shutoff power consumption (power consumption reduction when High-speed interface USB and FDCAN shutoff is enabled) 0.20 0.10 0.10 SRDSRAM shutoff power consumption (power consumption reduction when SRDSRAM shutoff is enabled) 0.30 0.30 0.40 Table 42. Typical and maximum current consumption in Standby mode Symbol Parameter Conditions Typ Max (3.6V)(1) Unit Backup SRAM RTC & LSE(2) 1.62 V 2.4 V(3) 3 V(3) 3.3 V(3) TJ = 25 °C TJ = 85 °C TJ = 105 °C TJ = 130 °C IDD (Standby) Supply current in Standby mode, IWDG OFF OFF OFF 1.97 2.76 3.02 3.30 4.0 11.0 22.0 57.0 µA ON OFF 2.78 3.69 4.02 4.40 5.4 13.0 25.0 64.0 OFF ON 2.46 3.37 3.73 4.07 5.0 12.2 23.3 59.0 ON ON 3.27 4.30 4.73 5.17 6.4 14.2 26.3 66.0 1. Guaranteed by characterization results. 2. The LSE clock is in low-drive mode. STM32H7B3xI Operating conditions DS13139 - Rev 8 page 99/238 |
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