STM32F217ZG datasheet(49/173 Pages) STMICROELECTRONICS

49 / 173 page

STM32F21xxx

Pinouts and pin description

Doc ID 17050 Rev 8

49/173

59 93 137 165 B5

PB7

I/O FT

PB7

I2C1_SDA / FSMC_NL(8) /

DCMI_VSYNC /

USART1_RX/ TIM4_CH2/

EVENTOUT

60 94 138 166 D6

BOOT0

VPP

61 95 139 167 A5

PB8

I/O FT

PB8

TIM4_CH3/SDIO_D4/

TIM10_CH1 / DCMI_D6 /

ETH_MII_TXD3 / I2C1_SCL/

CAN1_RX/ EVENTOUT

62 96 140 168 B4

PB9

I/O FT

PB9

SPI2_NSS/ I2S2_WS

TIM4_CH4/ TIM11_CH1/

SDIO_D5 / DCMI_D7 /

I2C1_SDA / CAN1_TX/

EVENTOUT

97 141 169 A4

PE0

I/O FT

PE0

TIM4_ETR / FSMC_NBL0 /

DCMI_D2/ EVENTOUT

98 142 170 A3

PE1

I/O FT

PE1

FSMC_NBL1 / DCMI_D3/

EVENTOUT

VSS

SVSS

VSS_3

SVSS_3

99 143 171 C6

RFU(9)

64 100 144 172 C5

VDD_3

SVDD_3

- 173 D4

PI4

I/O FT

PI4

TIM8_BKIN / DCMI_D5/

EVENTOUT

- 174 C4

PI5

I/O FT

PI5

TIM8_CH1 / DCMI_VSYNC/

EVENTOUT

- 175 C3

PI6

I/O FT

PI6

TIM8_CH2 / DCMI_D6/

EVENTOUT

- 176 C2

PI7

I/O FT

PI7

TIM8_CH3 / DCMI_D7/

EVENTOUT

I = input, O = output, S = supply, HiZ = high impedance.

FT = 5 V tolerant; TT = 3.6 V tolerant.

Function availability depends on the chosen device.

PC13, PC14, PC15 and PI8 are supplied through the power switch. Since the switch only sinks a limited amount of current

(3 mA), the use of GPIOs PC13 to PC15 and PI8 in output mode is limited: the speed should not exceed 2 MHz with a

maximum load of 30 pF and these I/Os must not be used as a current source (e.g. to drive an LED).

Main function after the first backup domain power-up. Later on, it depends on the contents of the RTC registers even after

reset (because these registers are not reset by the main reset). For details on how to manage these I/Os, refer to the RTC

website: www.st.com.

FT = 5 V tolerant except when in analog mode or oscillator mode (for PC14, PC15, PH0 and PH1).

Table 5.

STM32F21x pin and ball definitions (continued)

Pins

Pin name

Main

function(3)

(after reset)

Alternate functions

Other

functions

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