产品概述
描述
The STM32L422xx 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 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, namely three I2Cs, two SPIs, three USARTs and one Low-Power UART, one USB full-speed device crystal less.
The STM32L422xx devices embed an 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 makes possible the design of low-power applications.
Some independent power supplies are supported: analog independent supply input for ADC, OPAMP and comparator. A VBAT input makes it possible to backup the RTC and backup registers.
The STM32L422xx family offers six packages from 32 to 64-pin packages.
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所有功能
- 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 85/125 °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)
- Energy benchmark
- 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
- 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
- Rich analog peripherals (independent supply)
- 2x 12-bit ADC 5 Msps, up to 16-bit with hardware oversampling, 200 µA/Msps
- 1x operational amplifier with built-in PGA
- 1x ultra-low-power comparator
- 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)
- 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
- Ultra-low-power with FlexPowerControl
- Includes ST state-of-the-art patented technology
电路原理图
特别推荐
Recommended Tools & Software
EDA符号、封装和3D模型
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符号
封装
3D模型
所有资源
| 资源标题 | 版本 | 更新时间 |
|---|
System View Description (1)
| 资源标题 | 版本 | 更新时间 | ||
|---|---|---|---|---|
| ZIP | 1.9 | 22 Jul 2025 | 22 Jul 2025 |
IBIS models (1)
| 资源标题 | 版本 | 更新时间 | ||
|---|---|---|---|---|
| ZIP | 6.0 | 07 Jan 2022 | 07 Jan 2022 |
BSDL files (1)
| 资源标题 | 版本 | 更新时间 | ||
|---|---|---|---|---|
| ZIP | 3.4 | 12 May 2022 | 12 May 2022 |
质量与可靠性
| 产品型号 | Marketing Status | 包 | SMPS | 等级规格 | 符合RoHS级别 | Longevity Commitment | Longevity Starting Date | 材料声明** |
|---|---|---|---|---|---|---|---|---|
| STM32L422KBT6 | 批量生产 | LQFP 32 7x7x1.4 mm | - | 工业 | Ecopack2 | 10 | 2025-01-01T00:00:00.000+01:00 | |
| STM32L422KBU6 | 批量生产 | UFQFPN 32 5x5x0.55 mm | - | 工业 | Ecopack2 | 10 | 2025-01-01T00:00:00.000+01:00 |
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
样片和购买
| 产品型号 | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | 包 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | D/A Converters (typ) (12-bit) | Timers (typ) (16-bit) | Timers (typ) (32-bit) | Number of Channels (typ) | SMPS | Number of Channels (typ) | UART (typ) | I/Os (High Current) | Integrated op-amps | Comparator | SPI (typ) | USART (typ) | Number of Channels (typ) | I2S (typ) | Advanced Motor Control Timers | CAN (2.0) | CAN (FD) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | ||||||||||||||||||||||||||||||
| STM32L422KBU6 | 批量生产 | 1.6071 / 10k | 3 distributors | UFQFPN 32 5x5x0.55 mm | Tray | TAIWAN | 5A992.c | NEC | -40 | 85 |
| 4 | 1 |
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| 26 | 1 | 1 | 1 | 2 | 10 |
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| STM32L422KBT6 | 批量生产 | 1.6812 / 10k | 4 distributors | LQFP 32 7x7x1.4 mm | Tray | TAIWAN | 5A992.c | NEC | -40 | 85 |
| 4 | 1 |
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| 26 | 1 | 1 | 1 | 2 | 10 |
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STM32L422KBU6 批量生产
STM32L422KBT6 批量生产