ST72521R9-Auto STMicroelectronics, ST72521R9-Auto Datasheet - Page 51

• Manufacturer Part Number: ST72521R9-Auto
• Description: 8-bit MCU for automotive
• Manufacturer: STMicroelectronics

Specifications of ST72521R9-Auto

• Hdflash Endurance: 100 cycles, data retention 20 years
• Clock Sources: crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
• 4 Power Saving Modes: Halt, Active Halt, Wait and Slow

ST72521xx-Auto
Caution:
Application notes
The LVDRF flag is not cleared when another RESET type occurs (external or watchdog); the
LVDRF flag remains set to keep trace of the original failure.
In this case, software can detect a watchdog reset but cannot detect an external reset.
When the LVD is not activated with the associated option byte, the WDGRF flag cannot be
used in the application.
Doc ID 17660 Rev 1
Supply, reset and clock management
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