Contents
1 Introduction ............................................................................................................................................. 1
1.1 Overview ............................................................................................................................................... 1
1.2 Key features .......................................................................................................................................... 1
2 Ordering information .............................................................................................................................. 4
2.1 Ordering table ....................................................................................................................................... 4
2.2 Marking information .............................................................................................................................. 5
2.3 Part identification .................................................................................................................................. 6
3 Functional description ........................................................................................................................... 7
3.1 Block diagram ....................................................................................................................................... 7
3.2 Core introduction ................................................................................................................................... 8
3.3 Bus introduction .................................................................................................................................... 8
3.4 Memory map ......................................................................................................................................... 8
3.5 Flash ................................................................................................................................................... 10
3.6 SRAM .................................................................................................................................................. 10
3.7 NVIC .................................................................................................................................................... 10
3.8 EXTI .................................................................................................................................................... 10
3.9 Clock and boot .................................................................................................................................... 11
3.10 Boot modes ......................................................................................................................................... 11
3.11 Power supply schemes ....................................................................................................................... 11
3.12 Power supply supervisors ................................................................................................................... 11
3.13 Voltage regulator ................................................................................................................................. 12
3.14 Low power mode ................................................................................................................................. 12
3.15 Hardware divider ................................................................................................................................. 13
3.16 DMA .................................................................................................................................................... 13
3.17 Timers and watchdogs ........................................................................................................................ 14
3.18 Real-time clock (RTC) ......................................................................................................................... 16
3.19 Backup register ................................................................................................................................... 16
3.20 GPIO ................................................................................................................................................... 16
3.21 UART .................................................................................................................................................. 17
3.22 LPUART .............................................................................................................................................. 17
3.23 I2C ....................................................................................................................................................... 17
3.24 I3C ....................................................................................................................................................... 17
3.25 SPI ...................................................................................................................................................... 17
3.26 I2S ....................................................................................................................................................... 17
3.27 FlexCAN .............................................................................................................................................. 18
3.28 USB FS ............................................................................................................................................... 18
3.29 ADC ..................................................................................................................................................... 18
3.30 COMP ................................................................................................................................................. 18
3.31 2.4GHz RF module ............................................................................................................................. 19
3.32 CRC .................................................................................................................................................... 20
3.33 SWD .................................................................................................................................................... 20
4 Pinout and assignment ........................................................................................................................ 21
4.1 Pinout diagram .................................................................................................................................... 21
4.1.1 LQFP64 10x10 mm2 pinout .................................................................................................... 21
4.1.2 LQFP48 7x7 mm2 pinout ........................................................................................................ 22
4.1.3 QFN48 6x6 mm2 pinout .......................................................................................................... 23
4.1.4 QFN32 5x5 mm2 pinout .......................................................................................................... 24