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STM32MP157A 数据表(PDF) 147 Page - STMicroelectronics |
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STM32MP157A 数据表(HTML) 147 Page - STMicroelectronics |
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147 / 259 page  DS12504 Rev 5 147/259 STM32MP157A/D Electrical characteristics 237 All timings are derived from tests performed under ambient temperature and VDD = 3.3 V. Table 27. Low-power mode wakeup timings Symbol Parameter System mode Conditions (after wakeup) Typ(1) Max( 1) Unit MPU wakeup tWUCSLEEP_M PU MPU wakeup from CSleep, MCU in CSleep Run HSE 24 MHz, SYSRAM 31 32 mpuss_ ck clock cycles tWUCSTOP_MP U MPU wakeup from CStop, MCU in CStop Stop HSI 64 MHz, SYSRAM 5.7 9 µs HSE + PLL 648 MHz, SYSRAM 112 220 MPU wakeup from CStop, MCU in CRun Run HSI 64 MHz, SYSRAM 0.54 1 HSE + PLL 648 MHz, SYSRAM 0.083 0.17 tWULPLV- Stop_MPU MPU wakeup from CStop with system in LPLV-Stop (LVDS=1), MCU in CStop LPLV- Stop HSI 64 MHz, SYSRAM 410 640 MCU wakeup tWUCSLEEP_M CU MCU wakeup from CSleep, MPU in CSleep Run HSE 24 MHz, SRAM 6 7 mcu_ck clock cycles tWULPLV- Stop_MCU MCU wakeup from CStop with system in LPLV-Stop (LVDS=1), MPU in CStop LPLV- Stop HSI 64 MHz, SRAM, MCTMPSKP = 1 5.3 8 µs HSI 64 MHz, SRAM, MCTMPSKP = 0, PWR_LP delay = 1 ms 1.4 2.2 ms tWUCSTOP_ MCU MCU wakeup from CStop, MPU in CStop Stop HSI 64 MHz, SRAM 5.3 8 µs tWUCSTOP_ MCU2 MCU wakeup from CStop, HSI active (HSIKERON=1), MPU in CStop Stop (HSI active) HSI 64 MHz, SRAM 0.33 0.5 tWUCSTOP_ MCU3 MCU wakeup from CStop, MPU in CRun Run HSI 64 MHz, SRAM 0.12 0.18 tWUSTANDBY_ MCU MCU wakeup from STANDBY Standby HSI 64 MHz, RETRAM 2550 3000 1. Guaranteed by characterization results unless otherwise specified. Table 28. Wakeup time using USART(1) Symbol Parameter Conditions Typ Max Unit tWUUSART Wakeup time needed to calculate the maximum USART baud rate allowing the wakeup from Stop mode when USART clock source is HSI. Stop - 6.7 µs 1. Guaranteed by design. |
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