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UM1570 Rev 7 29/41

UM1570 Hardware layout and configuration

PC4 USART1_TX 33

USART1_TX

----------20 -

PC5

G3_IO1,

USART1_RX

----------19 -

PC6

TIM3_CH1,

TIM8_CH1,

I2S2_MCK,

COMP6_OUT

63-----------47 -

PC7

TIM3_CH2,

TIM8_CH2,

I2S3_MCK,

COMP5_OUT

64-----------48 -

PC8

TIM3_CH3,

TIM8_CH3,

COMP3_OUT

65------------47

PC9

TIM3_CH4,

TIM8_CH4_BKIN2,

COMP3_OUT

66------------46

PC10

TIM8_CH1N,

UART4_TX,

SPI3_SCK/I2S3_CK,

USART3_TX

78------------35

PC11

TIM8_CH2N,

UART4_RX,

SPI3_MISO/I2S3_DI

N, USART3_RX

79------------36

Table 7. STM32F303VCT6 MCU pin description versus board function (continued)

(1)

MCU pin Board function

Main

function

Alternate function

LQFP100 pin number

VCP

LSM303DLHC or LSM303AGR

L3GD20 or I3G4250D

Push-button

LED

SWD

USB

OSC

Free I/O

Power supply

CN3

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ST STM32F3DISCOVERY Specifications

General

Microcontroller	STM32F303VCT6
Core	ARM Cortex-M4
Clock Speed	72 MHz
Flash Memory	256 KB
SRAM	48 KB
GPIO Pins	Up to 80
On-Board Debugging	ST-LINK/V2
Audio DAC	Yes
Audio Class D Amplifier	Yes
User Buttons	2
Extension Headers	Yes
Operating Voltage	3.3V
Debug Interface	SWD
USB	USB 2.0
Power Supply	5V
Accelerometer	LIS302DL
Gyroscope	L3GD20
e-Compass	No
LEDs	8
DAC	2 channels
Communication Interfaces	I2C, SPI, USART
Magnetometer	Yes
DAC Channels	2x 12-bit DAC channels