STM32L475RC datasheet(64/193 Pages) STMICROELECTRONICS

Part #	STM32L475RC

Description	Ultra-low-power ARM Cortex-M4 32-bit MCUFPU, 100DMIPS, up to 1MB Flash, 128 KB SRAM, USB OTG FS, analog, audio

PDF	193 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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64 / 193 page

Pinouts and pin description

STM32L475xx

64/193

DocID027692 Rev 2

PE1

I/O

FMC_NBL1, TIM17_CH1,

EVENTOUT

VSS

64 100

VDD

1. PC13, PC14 and PC15 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 in output mode is limited:

- The speed should not exceed 2 MHz with a maximum load of 30 pF

- These GPIOs must not be used as current sources (e.g. to drive an LED).

2. After a Backup domain power-up, PC13, PC14 and PC15 operate as GPIOs. Their function then depends on the content of

the RTC registers which are not reset by the system reset. For details on how to manage these GPIOs, refer to the Backup

domain and RTC register descriptions in the RM0395 reference manual.

3. After reset, these pins are configured as JTAG/SW debug alternate functions, and the internal pull-up on PA15, PA13, PB4

pins and the internal pull-down on PA14 pin are activated.

Table 15. STM32L475xx pin definitions (continued)

Number

Pin name

(function after

reset)

Pin functions

Alternate functions

Additional functions

STM32L475RC Datasheet(PDF) 64 Page - STMicroelectronics