製品概要
概要
The STM32L431xx 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 STM32L431xx 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 STM32L431xx 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.
They also feature standard and advanced communication interfaces.
The STM32L431xx 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 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, DAC, OPAMP and comparators. A VBAT input allows to backup the RTC and backup registers.
The STM32L431xx family offers nine packages from 32 to 100-pin packages.
-
特徴
- 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 VBAT 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
- 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
- 176.7 ULPBench® 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, audio, ADC
- Up to 83 fast I/Os, most 5 V-tolerant
- RTC with HW calendar, alarms and calibration
- 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
- メモリ
- 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
- 16x communication interfaces
- 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
- Ultra-low-power with FlexPowerControl
回路ダイアグラム
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品質 & 信頼性
| 製品型番 | マーケティング･ステータス | パッケージ | SMPS | グレード | RoHSコンプライアンスグレード | 材料宣誓書** |
|---|---|---|---|---|---|---|
| STM32L431RBI3 | 量産中 | UFBGA 64 5x5x0.6 P 0.5 mm | - | インダストリアル | Ecopack2 | |
| STM32L431RBI6 | 量産中 | UFBGA 64 5x5x0.6 P 0.5 mm | - | インダストリアル | Ecopack2 | |
| STM32L431RBI6TR | 量産中 | UFBGA 64 5x5x0.6 P 0.5 mm | - | インダストリアル | Ecopack2 | |
| STM32L431RBT6 | 量産中 | LQFP 64 10x10x1.4 mm | - | インダストリアル | Ecopack2 | |
| STM32L431RBT6TR | 量産中 | LQFP 64 10x10x1.4 mm | - | インダストリアル | Ecopack2 | |
| STM32L431RBY6TR | 量産中 | WLCSP 64 3.2x3.2x0.6 P 0.35 mm | - | インダストリアル | Ecopack2 |
(**) st.comで提供している材料宣誓書は、パッケージ･ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください
サンプル & 購入
Don't show this again
| 製品型番 | 製品ステータス | Budgetary Price (US$)*/Qty | STから購入 | Order from distributors | パッケージ | 梱包タイプ | 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 | 最大 | ||||||||||||||||||||||||||||||
| STM32L431RBI6 | 量産中 | 1.8716 / 10k | 4 distributors | UFBGA 64 5x5x0.6 P 0.5 mm | Tray | TAIWAN | 3A991.a.2 | NEC | -40 | 85 | 2 | 5 | 1 |
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| STM32L431RBI3 | 量産中 | 2.1524 / 10k | 1 distributors | UFBGA 64 5x5x0.6 P 0.5 mm | Tray | TAIWAN | 3A991.a.2 | NEC | -40 | 125 | 2 | 5 | 1 |
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| 52 | 1 | 2 | 3 | 3 | 16 |
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| STM32L431RBY6TR | 量産中 | 1.6988 / 10k | 3 distributors | WLCSP 64 3.2x3.2x0.6 P 0.35 mm | Tape and Reel | TAIWAN | 3A991.a.2 | NEC | -40 | 85 | 2 | 5 | 1 |
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| 52 | 1 | 2 | 3 | 3 | 16 |
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| STM32L431RBT6 | 量産中 | 1.9457 / 10k | 4 distributors | LQFP 64 10x10x1.4 mm | Tray | CHINA | 3A991.a.2 | NEC | -40 | 85 | 2 | 5 | 1 |
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| 52 | 1 | 2 | 3 | 3 | 16 |
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| 1 |
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| STM32L431RBT6TR | 量産中 | 1.9457 / 10k | 5 distributors | LQFP 64 10x10x1.4 mm | Tape and Reel | CHINA | 3A991.a.2 | NEC | -40 | 85 | 2 | 5 | 1 |
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| STM32L431RBI6TR | 量産中 | 1.8716 / 10k | distributors 販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください | UFBGA 64 5x5x0.6 P 0.5 mm | Tape and Reel | TAIWAN | 3A991.a.2 | NEC | -40 | 85 | 2 | 5 | 1 |
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STM32L431RBI6 量産中
Budgetary Price (US$)*/Qty:
1.8716 / 10k
パッケージ:
UFBGA 64 5x5x0.6 P 0.5 mm
梱包タイプ:
Tray
Country of Origin:
TAIWAN
ECCN (US):
3A991.a.2
ECCN (EU):
NEC
STM32L431RBI3 量産中
Budgetary Price (US$)*/Qty:
2.1524 / 10k
パッケージ:
UFBGA 64 5x5x0.6 P 0.5 mm
梱包タイプ:
Tray
Country of Origin:
TAIWAN
ECCN (US):
3A991.a.2
ECCN (EU):
NEC
STM32L431RBY6TR 量産中
Budgetary Price (US$)*/Qty:
1.6988 / 10k
パッケージ:
WLCSP 64 3.2x3.2x0.6 P 0.35 mm
梱包タイプ:
Tape and Reel
Country of Origin:
TAIWAN
ECCN (US):
3A991.a.2
ECCN (EU):
NEC
STM32L431RBT6 量産中
Budgetary Price (US$)*/Qty:
1.9457 / 10k
パッケージ:
LQFP 64 10x10x1.4 mm
梱包タイプ:
Tray
Country of Origin:
CHINA
ECCN (US):
3A991.a.2
ECCN (EU):
NEC
STM32L431RBT6TR 量産中
Budgetary Price (US$)*/Qty:
1.9457 / 10k
パッケージ:
LQFP 64 10x10x1.4 mm
梱包タイプ:
Tape and Reel
Country of Origin:
CHINA
ECCN (US):
3A991.a.2
ECCN (EU):
NEC
STM32L431RBI6TR 量産中
Budgetary Price (US$)*/Qty:
1.8716 / 10k
distributors
販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください
パッケージ:
UFBGA 64 5x5x0.6 P 0.5 mm
梱包タイプ:
Tape and Reel
Country of Origin:
TAIWAN
ECCN (US):
3A991.a.2
ECCN (EU):
NEC
Don't show this again
（*）概算用の参考価格（US$）です。現地通貨でのお見積りについては、STのセールス･オフィスまたは販売代理店までお問い合わせください。