STM32L552CET6PTR datasheet(2/340 Pages) STMICROELECTRONICS

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STM32L552xx

2/340

DS12737 Rev 6

• 512-byte OTP (one-time programmable) for

user data

General-purpose input/outputs

• Up to 114 fast I/Os with interrupt capability

most 5 V-tolerant and up to 14 I/Os with

independent supply down to 1.08 V

Power management

• Embedded regulator (LDO) with three

configurable range output to supply the digital

circuitry

• Embedded SMPS step-down converter

• External SMPS support

Clock management

• 4 to 48 MHz crystal oscillator

• 32 kHz crystal oscillator for RTC (LSE)

• Internal 16 MHz factory-trimmed RC (±1%)

• Internal low-power 32 kHz RC (±5%)

• Internal multispeed 100 kHz to 48 MHz

oscillator, auto-trimmed by LSE (better than

±0.25% accuracy)

• Internal 48 MHz with clock recovery

• 3 PLLs for system clock, USB, audio, ADC

Up to 16 timers and 2 watchdogs

• 16x timers: 2 x 16-bit advanced motor-control,

2 x 32-bit and 5 x 16-bit general purpose, 2x

16-bit basic, 3x low-power 16-bit timers

(available in Stop mode), 2x watchdogs, 2x

SysTick timer

• RTC with hardware calendar, alarms and

calibration

Up to 19 communication peripherals

• 1x USB Type-C™/ USB power delivery

controller

• 1x USB 2.0 full-speed crystal less solution,

LPM and BCD

• 2x SAIs (serial audio interface)

• 4x I2C FM+(1 Mbit/s), SMBus/PMBus™

• 6x USARTs (ISO 7816, LIN, IrDA, modem)

• 3x SPIs (7x SPIs with USART and OCTOSPI in

SPI mode)

• 1x FDCAN controller

• 1x SDMMC interface

2 DMA controllers

• 14 DMA channels

Up to 22 capacitive sensing channels

• Support touch key, linear and rotary touch

sensors

Rich analog peripherals (independent

supply)

• 2x 12-bit ADC 5 Msps, up to 16-bit with

hardware oversampling, 200 µA/Msps

• 2x 12-bit DAC outputs, low-power sample and

hold

• 2x operational amplifiers with built-in PGA

• 2x ultra-low-power comparators

• 4x digital filters for sigma delta modulator

CRC calculation unit

Debug

• Development support: serial wire debug

(SWD), JTAG, Embedded Trace Macrocell™

(ETM)

Table 1. Device summary

Reference

Part numbers

STM32L552xx

STM32L552CC, STM32L552CE, STM32L552ME, STM32L552QC, STM32L552QE,

STM32L552RC, STM32L552RE, STM32L552VC, STM32L552VE, STM32L552ZC,

STM32L552ZE

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