STM32WL33C8 datasheet(2/91 Pages) STMICROELECTRONICS

2 / 91 page

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Ultra-low power architecture

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Dynamic current consumption: 21 µA/MHz

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14 nA in Shutdown mode

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960 nA in Deepstop mode

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Radio only consumption:

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4 mA in RX

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8 mA in TX @ +10 dBm

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78 mA in TX @ +20 dBm

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Consumption: 1.3 mA current in WFI conditions (direct HSE mode)

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Wakeup capability from both Deepstop and Shutdown modes

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Peripherals and analog front-end

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LCD driver with up to 96 (12x8) or 64 (16x4) matrix elements

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12-bit ADC: up to 1 Msample/s with 8 single ended channels (or 4 differentials)

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1x comparator

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1x 6-bit sample-and-hold DAC output

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1x LC sensor controller (for autonomous rotary-wheel based flow metering)

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Battery voltage monitoring with low-level detection

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Temperature monitoring

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Communication interfaces

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Up to 32 GPIOs (VFQFPN48), all with retention capability

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Up to 17 GPIOs (VFQFPN32), all with retention capability

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1x USART. Supports of LIN, Smartcard Protocol, IrDA, SIR ENDEC specifications, and modem

operations (CTS/RTS)

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1x LPUART (available also in low-power mode), with wakeup capability

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1x SPI

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1x SPI with I2S interface multiplexed

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2x I2C (SMBus/PMBus)

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1x DMA 8 channels controller, supporting ADC, DAC, SPIs, I2Cs, USART, LPUART, timers, AES

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Clock sources and timers

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Flexible clocking scheme, featuring:

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64 MHz (HSI or PLL)

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Fail-safe 48 MHz crystal oscillator (HSE), with integrated trimming capacitors

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32 kHz crystal oscillator (LSE)

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Integrated low-power 32 kHz RC (LSI)

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1x 16-bits, four channels general purpose timer

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1x 16-bits, two channels general purpose timer

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1x RTC

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1x independent watchdog

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Radio timer with wakeup capability

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Security

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Secure bootloader with SWD disabling

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AES-128 co-processor and 16-bit TRNG

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Embedded UART bootloader with selectable write and read-out protection

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Operating range and reset

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Ultra-low-power power-on-reset (POR) and power-down-reset (PDR)

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Programmable voltage detector (PVD)

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Supply voltage: from 1.7 to 3.6 V

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Temperature range: -40 ºC to 105 ºC

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All packages are ECOPACK2 compliant

STM32WL33xx

DS14221 - Rev 5

page 2/91

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