STM32L552CC_V01 datasheet(77/340 Pages) STMICROELECTRONICS

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DS12737 Rev 6

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STM32L552xx

Functional overview

The SDMMC features include the following:

•

Full compliance with MultiMediaCard System Specification Version 4.51. Card support

for three different databus modes: 1-bit (default), 4-bit and 8-bit

•

Full compatibility with previous versions of MultiMediaCards (backward compatibility)

•

Full compliance with SD Memory Card Specifications Version 4.1. (SDR104

SDMMC_CK speed limited to maximum allowed IO speed, SPI mode and UHS-II mode

not supported)

•

Full compliance with SDIO Card Specification Version 4.0: card support for two different

databus modes: 1-bit (default) and 4-bit. (SDR104 SDMMC_CK speed limited to

maximum allowed IO speed, SPI mode and UHS-II mode not supported)

•

Data transfer up to 104 Mbyte/s for the 8-bit mode (depending maximum allowed IO

speed)

•

Data and command output enable signals to control external bidirectional drivers.

3.39

Controller area network (FDCAN)

The controller area network (CAN) subsystem consists of one CAN modules and message

RAM memory.

The CAN module (FDCAN) is compliant with ISO 11898-1 (CAN protocol specification

version 2.0 part A, B) and CAN FD protocol specification version 1.0.

A 1 Kbyte message RAM memory implements filters, receive FIFOs, receive buffers,

transmit event FIFOs, transmit buffers.

3.40

Universal serial bus (USB FS)

The devices embed a full-speed USB device peripheral compliant with the USB

specification version 2.0. The internal USB PHY supports USB FS signaling, embedded DP

pull-up and battery charging detection according to Battery Charging Specification Revision

1.2.

The USB interface implements a full-speed (12 Mbit/s) function interface with added support

for USB 2.0 link power management. It has software-configurable endpoint setting with

packet memory up-to 1 Kbyte and suspend/resume support.

This interface requires a precise 48 MHz clock which can be generated from the internal

main PLL (the clock source must use a HSE crystal oscillator) or by the internal 48 MHz

oscillator (HSI48) in automatic trimming mode. The synchronization for this oscillator can be

taken from the USB data stream itself (SOF signalization) which allows crystal less

operation.

3.41

USB Type-C™ / USB Power Delivery controller (UCPD)

The device embeds one controller (UCPD) compliant with USB Type-C Rev. 1.2 and USB

Power Delivery Rev. 3.0 specifications.

STM32L552CC 数据表(PDF) 77 Page - STMicroelectronics

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