Datasheet

Table Of Contents
Pinouts and pin description STM32F405xx, STM32F407xx
46/202 DocID022152 Rev 8
Figure 17. STM32F40xxx WLCSP90 ballout
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Table 6. Legend/abbreviations used in the pinout table
Name Abbreviation Definition
Pin name
Unless otherwise specified in brackets below the pin name, the pin function during and after
reset is the same as the actual pin name
Pin type
S Supply pin
I Input only pin
I/O Input / output pin
I/O structure
FT 5 V tolerant I/O
TTa 3.3 V tolerant I/O directly connected to ADC
B Dedicated BOOT0 pin
RST Bidirectional reset pin with embedded weak pull-up resistor
Notes Unless otherwise specified by a note, all I/Os are set as floating inputs during and after reset
Alternate
functions
Functions selected through GPIOx_AFR registers
Additional
functions
Functions directly selected/enabled through peripheral registers