Datasheet

Pinout and pin description STM32F446xC/E
46/202 DocID027107 Rev 6
Table 9. 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
FTf 5V tolerant IO, I2C FM+ option
TTa 3.3 V tolerant I/O directly connected to ADC
B Dedicated BOOT0 pin
RST Bidirectional reset pin with 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
Table 10. STM32F446xx pin and ball descriptions
Pin Number
Pin name (function
after reset)
Pin type
I/O structure
Notes
Alternate functions
Additional
functions
LQFP64
LQFP100
WLCSP 81
UFBGA144
LQFP144
- 1 D7 A3 1 PE2 I/O FT -
TRACECLK, SPI4_SCK,
SAI1_MCLK_A,
QUADSPI_BK1_IO2,
FMC_A23, EVENTOUT
-
- 2 D6 A2 2 PE3 I/O FT -
TRACED0, SAI1_SD_B,
FMC_A19, EVENTOUT
-
- 3 A9 B2 3 PE4 I/O FT -
TRACED1, SPI4_NSS,
SAI1_FS_A, FMC_A20,
DCMI_D4, EVENTOUT
-
- 4 - B3 4 PE5 I/O FT -
TRACED2, TIM9_CH1,
SPI4_MISO, SAI1_SCK_A,
FMC_A21, DCMI_D6,
EVENTOUT
-
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