STM32L422CBU6 STM32 32-bit Arm Cortex MCUs by STMicroelectronics

Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 128 Kbytes of of Flash memory memory, USB

Status: Active
Series: STM32L422CB
RoHS: Compliant
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The STM32L422xx devices are the 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 which 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 STM32L422xx devices embed high-speed memories (Flash memory up to 128 Kbyte,40 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 STM32L422xx devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, proprietary code readout protection and Firewall. The devices offer two fast 12-bit ADC (5 Msps), two comparators, one operational amplifier, 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 12 capacitive sensing channels are available. They also feature standard and advanced communication interfaces. The STM32L422xx devices embed AES hardware accelerator. The STM32L422xx operates in the -40 to +85 °C (+105 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges from a 1.71 to 3.6 V VDD power supply. A comprehensive set of power-saving modes allows the design of low-power applications. Some independent power supplies are supported: analog independent supply input for ADC, OPAMP and comparator. A VBAT input allows to backup the RTC and backup registers. The STM32L422xx family offers six packages from 32 to 64-pin packages.

Where to Buy

Prices starting from US$2.29

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Features

Ultra-low-power with FlexPowerControl 1.71 V to 3.6 V power supply -40 °C to 85/125 °C temperature range 300 nA in VBAT mode: supply for RTC and 32x32-bit backup registers 16 nA Shutdown mode (4 wakeup pins) 32 nA Standby mode (4 wakeup pins) 245 nA Standby mode with RTC 0.7 μA Stop 2 mode, 0.95 μA with RTC 79 μA/MHz run mode (LDO Mode) Batch acquisition mode (BAM) 4 μs wakeup from Stop mode Brown out reset (BOR) Interconnect matrix
1.71 V to 3.6 V power supply
-40 °C to 85/125 °C temperature range
300 nA in VBAT mode: supply for RTC and 32x32-bit backup registers
16 nA Shutdown mode (4 wakeup pins)
32 nA Standby mode (4 wakeup pins)
245 nA Standby mode with RTC
0.7 μA Stop 2 mode, 0.95 μA with RTC
79 μA/MHz run mode (LDO 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)
1.25 DMIPS/MHz (Drystone 2.1)
273.55 CoreMark® (3.42 CoreMark/MHz @ 80 MHz)
Energy benchmark 442 ULPMark-CP® 165 ULPMark-PP®
442 ULPMark-CP®
165 ULPMark-PP®
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 PLL for system clock
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
PLL for system clock
Up to 52 fast I/Os, most 5 V-tolerant
RTC with HW calendar, alarms and calibration
Up to 12 capacitive sensing channels: support touchkey, linear and rotary touch sensors
10x timers: 1x 16-bit advanced motor-control, 1x 32-bit and 2x 16-bit general purpose, 1x 16-bit basic, 2x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer
Memories 128 KB single bank Flash, proprietary code readout protection 40 KB of SRAM including 8 KB with hardware parity check Quad SPI memory interface with XIP capability
128 KB single bank Flash, proprietary code readout protection
40 KB of SRAM including 8 KB with hardware parity check
Quad SPI memory interface with XIP capability
Rich analog peripherals (independent supply) 2x 12-bit ADC 5 Msps, up to 16-bit with hardware oversampling, 200 μA/Msps 2x operational amplifiers with built-in PGA 1x ultra-low-power comparator Accurate 2.5 V or 2.048 V reference voltage buffered output
2x 12-bit ADC 5 Msps, up to 16-bit with hardware oversampling, 200 μA/Msps
2x operational amplifiers with built-in PGA
1x ultra-low-power comparator
Accurate 2.5 V or 2.048 V reference voltage buffered output
AES: 128/256-bit key encryption hardware accelerator
12x communication interfaces USB 2.0 full-speed crystal less solution with LPM and BCD 3x I2C FM+(1 Mbit/s), SMBus/PMBus 3x USARTs (ISO 7816, LIN, IrDA, modem) 1x LPUART (Stop 2 wake-up) 2x SPIs (and 1x Quad SPI) IRTIM (Infrared interface)
USB 2.0 full-speed crystal less solution with LPM and BCD
3x I2C FM+(1 Mbit/s), SMBus/PMBus
3x USARTs (ISO 7816, LIN, IrDA, modem)
1x LPUART (Stop 2 wake-up)
2x SPIs (and 1x Quad SPI)
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 Macrocellâ„¢
All packages are ECOPACK2® compliant

Alternative Descriptions

Stm32L |Stmicroelectronics STM32L422CBU6 | Newark Electronics
Cortex«-M4 32-bit MCU+FPU, 100DMIPS, 128KB Flash, 40KB SRAM | Future Electronics
MCU 32-Bit ARM Cortex-M4F RISC 128KB Flash 1.71V to 3.6V 48-Pin UFQFPN Tray | Avnet America
MCU, 32BIT, 80MHZ, QFN-48 | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a STM32L422CBU6?

Additional datasheets, footprints and schematics for STM32L422CBU6 are listed on our Part Details page. You can also find images and similar parts to STM32L422CBU6 on this page.

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What category does STM32L422CBU6 fall under?

The STM32L422CBU6 is listed under Microcontrollers & Microprocessors > STM32 32-bit Arm Cortex MCUs > STM32 Ultra Low Power MCUs > STM32L4 Series > STM32L4x2.

Can I view similar or alternative parts?

You can view similar parts to STM32L422CBU6 when available in the STM32L4x2 range under the specifications section at the bottom of the details page.

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Is the STM32L422CBU6 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

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Authorised distributors including Newark Electronics, Future Electronics, Avnet America, element14 and Farnell have stock available or on a lead time for STM32L422CBU6.

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