STM32L433RCY6STR

Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 256 Kbytes of Flash memory, LCD, USB

Parameters

Supply Voltage Min Volt	1.71
Supply Voltage Max Volt	3.6
Operating Temp Min Celsius	-40.0
Operating Temp Max Celsius	85.0
Core	Arm Cortex-M4
ECCN US	3A991.a.2
ECCN EU	NEC
Packing Type	Tape And Reel
RoHs compliant	Ecopack2
Grade	Industrial
Package Name	WLCSP 64 3.2x3.2x0.6 P 0.35 mm

Description

The STM32L433xx devices are ultra-low-power microcontrollers based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 80 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision that supports all Arm® single-precision data-processing...
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The STM32L433xx devices are ultra-low-power microcontrollers based on the high-performance Arm^® Cortex^®-M4 32-bit RISC core operating at a frequency of up to 80 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision that supports all Arm^® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.

The STM32L433xx devices embed high-speed memories (flash memory up to 256 Kbyte, 64 Kbyte of SRAM), a Quad SPI flash memories interface (available on all packages) and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.

The STM32L433xx devices embed several protection mechanisms for embedded flash memory and SRAM: readout protection, write protection, proprietary code readout protection and Firewall.

The devices offer a fast 12-bit ADC (5 Msps), two comparators, one operational amplifier, two DAC channels, an internal voltage reference buffer, a low-power RTC, one general-purpose 32-bit timer, one 16-bit PWM timer dedicated to motor control, four general-purpose 16-bit timers, and two 16-bit low-power timers.

In addition, up to 21 capacitive sensing channels are available. The devices also embed an integrated LCD driver 8x40 or 4x44, with internal step-up converter.

They also feature standard and advanced communication interfaces, namely three I2Cs, three SPIs, three USARTs and one Low-Power UART, one SAI, one SDMMC, one CAN, one USB full-speed device crystal less, one SWPMI (single wire protocol master interface).

The STM32L433xx operates in the -40 to +85 °C (+105 °C junction), -40 to +105 °C (+125 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges from a 1.71 to 3.6 V V_DD power supply when using internal LDO regulator and a 1.05 to 1.32V V_DD12 power supply when using external SMPS supply. A comprehensive set of power-saving modes makes possible the design of low-power applications.

Some independent power supplies are supported: analog independent supply input for ADC, DAC, OPAMP and comparators, and 3.3 V dedicated supply input for USB. A VBAT input makes it possible to backup the RTC and backup registers. Dedicated V_DD12 power supplies can be used to bypass the internal LDO regulator when connected to an external SMPS.

The STM32L433xx family offers eight packages from 48 to 100-pin packages.

Key features

Key features
Includes ST state-of-the-art patented technology Ultra-low-power with FlexPowerControl 1.71 V to 3.6 V power supply -40 °C to 85/105/125 °C temperature range 200 nA in V_BAT mode: supply for RTC and 32x32-bit backup registers 8 nA Shutdown mode (5 wakeup pins) 28 nA Standby mode (5 wakeup pins) 280 nA Standby mode with RTC 1.0 µA Stop 2 mode, 1.28 µA with RTC 84 µA/MHz run mode (LDO Mode) 36 μA/MHz run mode (@3.3 V SMPS Mode) Batch acquisition mode (BAM) 4 µs wakeup from Stop mode Brown out reset (BOR) Interconnect matrix Core: Arm^® 32-bit Cortex^®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait-state execution from flash memory, frequency up to 80 MHz, MPU, 100DMIPS and DSP instructions Performance benchmark 1.25 DMIPS/MHz (Drystone 2.1) 273.55 CoreMark^® (3.42 CoreMark/MHz @ 80 MHz) Energy benchmark 347 ULPMark™ CP score 121 ULPMark™ PP score Clock Sources 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 2 PLLs for system clock, USB, audio, ADC Up to 83 fast I/Os, most 5 V-tolerant RTC with HW calendar, alarms and calibration LCD 8× 40 or 4× 44 with step-up converter Up to 21 capacitive sensing channels: support touchkey, linear and rotary touch sensors 11x timers: 1x 16-bit advanced motor-control, 1x 32-bit and 2x 16-bit general purpose, 2x 16-bit basic, 2x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer Memories Up to 256 KB single bank flash, proprietary code readout protection 64 KB of SRAM including 16 KB with hardware parity check Quad SPI memory interface Rich analog peripherals (independent supply) 1x 12-bit ADC 5 Msps, up to 16-bit with hardware oversampling, 200 µA/Msps 2x 12-bit DAC output channels, low-power sample and hold 1x operational amplifier with built-in PGA 2x ultra-low-power comparators 17x communication interfaces USB 2.0 full-speed crystal less solution with LPM and BCD 1x SAI (serial audio interface) 3x I2C FM+(1 Mbit/s), SMBus/PMBus 4x USARTs (ISO 7816, LIN, IrDA, modem) 1x LPUART (Stop 2 wake-up) 3x SPIs (and 1x Quad SPI) CAN (2.0B Active) and SDMMC interface SWPMI single wire protocol master I/F IRTIM (Infrared interface) 14-channel DMA controller True random number generator CRC calculation unit, 96-bit unique ID Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™ All packages are ECOPACK2 compliant

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