32-Bit Arm® Cortex®-M0+ MCU
HT32F52344/HT32F52354
List of Tables
Table 1. Features and Peripheral List..................................................................................................... 16
Table 2. Register Map............................................................................................................................. 19
Table 3. Pin Assignment for 33/46-pin QFN and 48/64-pin LQFP Packages ......................................... 26
Table 4. Pin Description.......................................................................................................................... 28
Table 5. Absolute Maximum Ratings....................................................................................................... 30
Table 6. Recommended DC Operating Conditions................................................................................. 30
Table 7. LDO Characteristics.................................................................................................................. 30
Table 8. Power Consumption Characteristics......................................................................................... 31
Table 9. VDD Power Reset Characteristics .............................................................................................. 33
Table 10. LVD/BOD Characteristics........................................................................................................ 33
Table 11. High Speed External Clock (HSE) Characteristics.................................................................. 34
Table 12. Low Speed External Clock (LSE) Characteristics................................................................... 34
Table 13. High Speed Internal Clock (HSI) Characteristics .................................................................... 35
Table 14. Low Speed Internal Clock (LSI) Characteristics...................................................................... 35
Table 15. System PLL Characteristics .................................................................................................... 35
Table 16. USB PLL Characteristics......................................................................................................... 36
Table 17. Flash Memory Characteristics................................................................................................. 36
Table 18. I/O Port Characteristics........................................................................................................... 36
Table 19. ADC Characteristics................................................................................................................ 38
Table 20. Internal Reference Voltage Characteristics............................................................................. 39
Table 21. Comparator Characteristics .................................................................................................... 40
Table 22. MCTM/GPTM/SCTM Characteristics...................................................................................... 40
Table 23. I2C Characteristics................................................................................................................... 41
Table 24. SPI Characteristics.................................................................................................................. 42
Table 25. USB DC Electrical Characteristics .......................................................................................... 44
Table 26. USB AC Electrical Characteristics........................................................................................... 45
Rev. 1.10
4 of 51
August 03, 2020
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