Datasheet
DocID024030 Rev 10 53/239
STM32F427xx STM32F429xx Pinouts and pin description
85
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
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. STM32F427xx and STM32F429xx pin and ball definitions
Pin number
Pin name
(function after
reset)
(1)
Pin type
I / O structure
Notes
Alternate functions
Additional
functions
LQFP100
LQFP144
UFBGA169
UFBGA176
LQFP176
WLCSP143
LQFP208
TFBGA216
1 1 B2 A2 1 D8 1 A3 PE2 I/O FT -
TRACECLK,
SPI4_SCK,
SAI1_MCLK_A,
ETH_MII_TXD3,
FMC_A23, EVENTOUT
-
2 2 C1 A1 2 C10 2 A2 PE3 I/O FT -
TRACED0,
SAI1_SD_B, FMC_A19,
EVENTOUT
-
3 3 C2 B1 3 B11 3 A1 PE4 I/O FT -
TRACED1, SPI4_NSS,
SAI1_FS_A, FMC_A20,
DCMI_D4, LCD_B0,
EVENTOUT
-
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