STM32WLE4JC datasheet(2/145 Pages) STMICROELECTRONICS

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STM32WLE5/E4xx

2/145

DS13105 Rev 8

• 32 kHz oscillator for RTC with calibration

• High-speed internal 16 MHz factory trimmed

RC (± 1 %)

• Internal low-power 32 kHz RC

• Internal multi-speed low-power 100 kHz to

48 MHz RC

• PLL for CPU, ADC and audio clocks

Memories

• Up to 256-Kbyte Flash memory

• Up to 64-Kbyte RAM

• 20x32-bit backup register

• Bootloader supporting USART and SPI

interfaces

• OTA (over-the-air) firmware update capable

• Sector protection against read/write operations

Rich analog peripherals (down to 1.62 V)

• 12-bit ADC 2.5 Msps, up to 16 bits with

hardware oversampling, conversion range up

to 3.6 V

• 12-bit DAC, low-power sample-and-hold

• 2x ultra-low-power comparators

System peripherals

• Semaphores for processor firmware process

synchronization

Controllers

• 2x DMA controller (7 channels each)

supporting ADC, DAC, SPI, I2C, LPUART,

USART, AES and timers

• 2x USART (ISO 7816, IrDA, SPI)

• 1x LPUART (low-power)

• 2x SPI 16 Mbit/s (1 over 2 supporting I2S)

• 3x I2C (SMBus/PMBus™)

• 2x 16-bit 1-channel timer

• 1x 16-bit 4-channel timer (supporting

motor control)

• 1x 32-bit 4-channel timer

• 3x 16-bit ultra-low-power timer

• 1x RTC with 32-bit sub-second wakeup

counter

• 1x independent SysTick

• 1x independent watchdog

• 1x window watchdog

Up to 43 I/Os, most 5 V-tolerant

Development support

• Serial-wire debug (SWD), JTAG

All packages ECOPACK2 compliant

Table 1. Device summary

Reference

Part number

STM32WLE5xx microcontrollers

STM32WLE5C8, STM32WLE5CB, STM32WLE5CC

STM32WLE5J8, STM32WLE5JB, STM32WLE5JC

STM32WLE5U8, STM32WLE5UB, STM32WLE5UC

STM32WLE4xx microcontrollers

STM32WLE4C8, STM32WLE4CB, STM32WLE4CC

STM32WLE4J8, STM32WLE4JB, STM32WLE4JC

STM32WLE4U8, STM32WLE4UB, STM32WLE4UC

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