Rev. 1.21

4 of 39

April 11, 2017

HT32F52220/HT32F52230

List of Tables

Table 1 Features and Peripheral List ....................................................................................................... 14

Table 2 Register Map .............................................................................................................................. 17

Table 3 Series Pin Assignment for 33-pin QFN, 24/28-pin SSOP Package ............................................ 22

Table 4 Pin Description ............................................................................................................................ 23

Table 5 Absolute Maximum Ratings......................................................................................................... 24

Table 6 Recommended DC Operating Conditions................................................................................... 24

Table 7 LDO Characteristics .................................................................................................................... 24

Table 8 Power Consumption Characteristics ........................................................................................... 25

Table 9 VDD Power Reset Characteristics ................................................................................................ 26

Table 10 LVD/BOD Characteristics.......................................................................................................... 26

Table 11 High Speed External Clock (HSE) Characteristics.................................................................... 27

Table 12 High Speed Internal Clock (HSI) Characteristics ...................................................................... 28

Table 13 Low Speed Internal Clock (LSI) Characteristics........................................................................ 28

Table 14 PLL Characteristics ................................................................................................................... 28

Table 15 Flash Memory Characteristics................................................................................................... 28

Table 16 I/O Port Characteristics ............................................................................................................. 29

Table 17 ADC Characteristics .................................................................................................................. 30

Table 18 SCTM/GPTM Characteristics.................................................................................................... 31

Table 19 I2C Characteristics..................................................................................................................... 32

Table 20 SPI Characteristics.................................................................................................................... 33