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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MPF0900AMBA2ES датащи(PDF) 22 Page - NXP Semiconductors |
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MPF0900AMBA2ES датащи(HTML) 22 Page - NXP Semiconductors |
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22 / 205 page  NXP Semiconductors PF09 Nine-channel power management IC with advanced system safety monitoring 11.2.8 STANDBY state The STANDBY state is a secondary functional state with programmable functionality to prioritize either system monitoring or low-power operation. After the device enters the RUN state, the MCU is able to request to enter the STANDBY state by asserting the STBY pin with the correct polarity as defined by the STBY_POL bit. Refer to section Section 12.8.3 for a detailed description of the STBY pin operation. The default configuration of the STBY registers is loaded from the OTP registers upon starting the power-up sequence. All functional I2C registers are accessible to read and write during the STANDBY state, as long as the proper VDDIO is supplied. The OTP_LP_STBY bit is provided to select whether the device enters the STANDBY state in a low-power mode or monitored mode. OTP_LP_STBY Low-power STANDBY 0 Monitored STANDBY 1 Low-power STANDBY Table 13. OTP_LP_STBY bit When the PF09 is operating in monitored STANDBY mode, the device operates based on the configuration in the STANDBY registers, with most monitoring functions available. When the PF09 is operating in the low-power STANDBY mode, the device functionality is limited, to achieve low quiescent currents. Function Monitored STANDBY Low-power STANDBY High-frequency clock Always on Enabled on demand (during I2C communication) Switching regulators mode OFF, PWM or PFM OFF or PFM FS0B pin status (In Active safe state) Always asserted (safe state) Always asserted (safe state) Internal voltage monitors Enabled with voltage regulator Disabled External voltage monitors Enabled (if VMONx_EN = 1) Disabled WD timer Enabled (if WD_EN = 1) Disabled FCCU monitoring Enabled [1][2] Disabled ERRMON monitoring Enabled[1] Disabled Clock monitoring Enabled Disabled Dynamic CRC Enabled[1] Disabled The digital machine supervisor Disabled Disabled The bandgap monitor Enabled Disabled Thermal monitor Enabled Disabled AMUX block Available Disabled Table 14. STANDBY operation summary [1] If block is available in the device and/or OTP configuration. [2] FCCU monitoring allowed with limited functionality in the safe state. The selection of the STANDBY mode is done during the OTP device customization stage, and will remain fixed in the customized part number. PF09 All information provided in this document is subject to legal disclaimers. © 2026 NXP B.V. All rights reserved. Product data sheet Rev. 1.3 — 16 December 2025 Document feedback 22 / 205 |
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