ST STM32F401 User Manual

Hardware layout UM1669
22/39 DocID025174 Rev 1
4.13 Extension connectors
The male headers P1 and P2 can connect the STM32F401 Discovery board to a standard
prototyping/wrapping board. STM32F401VCT6 GPI/Os are available on these connectors.
P1 and P2 can also be probed by an oscilloscope, logical analyzer or voltmeter.
1. Default SBx state is shown in bold.
Table 6. MCU pin description versus board function (page 1 of 8)
MCU pin Board function
Main
function
Alternate
functions
LQFP100
CS43L22
MP45DT02
L3GD20
LSM303DLHC
Pushbutton
LED
SWD
USB
OSC
Free I/O
Power supply
CN5 CN2
P1 P2
BOOT0 94 21
NRST 14
RESET
NRST
56
PA0-
WKUP
TIM2_CH1/TIM2_ETR,
TIM5_CH1,
USART2_CTS,
ADC1_0, WKUP
23
USER
12
PA1
TIM2_CH2, TIM5_CH2,
USART2_RTS,
ADC1_1
24 11
PA2
TIM2_CH3, TIM5_CH3,
TIM9_CH1,
USART2_TX, ADC1_2
25 14
PA3
TIM2_CH4, TIM5_CH4,
TIM9_CH2,
USART2_RX, ADC1_3
26 13
PA4
SPI1_NSS,
SPI3_NSS/I2S3_WS,
USART2_CK, ADC1_4
29
LRCK/AIN1x
16
PA5
TIM2_CH1/TIM2_ETR,
SPI1_SCK, ADC1_5
30
SCL/SPC
15
PA6
TIM1_BKIN,
TIM3_CH1,
SPI1_MISO, ADC1_6
31
SDO
18

ST STM32F401 Specifications

General

Brand	ST
Model	STM32F401
Category	Microcontrollers
Language	English