製品概要
主な利点
New security mechanisms
Enhanced device authentication and anticloning capabilities with Coupling and Chaining Bridge (CCB) and in-factory provisioned attestation. Learn more.
Greater power efficiency
Market-leading efficiency with 117 CoreMark/mW: 5x more efficient vs previous product generations.
Offering essential peripherals and memory capacity
I3C and FDCAN IP for fast connectivity. 256 Kbytes of RAM and 1 Mbyte of flash dual bank.
概要
The STM32U385xx devices belong to an ultra low-power microcontrollers family (STM32U3 series) based on the high-performance Arm® Cortex®-M33 32-bit RISC core. They operate at a frequency of up to 96 MHz.
The Cortex®-M33 core features a single‑precision FPU (floating‑point unit), that supports all the Arm® single‑precision data‑processing instructions and all the data types.
The Cortex®-M33 core also implements a full set of DSP (digital signal processing) instructions and a MPU (memory protection unit) that enhances the application security.
STM32U3 series are the first STM32 series based on near-threshold voltage technology to deliver breakthrough improvement in battery life. With near-threshold technology, STM32U3 devices reduce the active consumption down to 10uA/MHz, resulting in far longer battery life for any application.
The devices embed high‑speed memories (1‑Mbyte flash memory and 256‑Kbytes SRAM), one Octo/Quad-SPI flash memory interface, an extensive range of enhanced I/Os, peripherals connected to three APB buses, two AHB buses, and a 32‑bit multi‑AHB bus matrix.
The STM32U385xx devices embed several protection mechanisms for embedded flash memory and SRAM: readout protection, write protection, secure proprietary code readout protection, secure, and hide protection areas.
These devices offer two 12-bit ADC (2.5 Msps), two comparators, two operational amplifiers, two DAC channels, an internal voltage reference buffer, a low-power RTC, three general-purpose 32-bit timer, one 16-bit PWM timer dedicated to motor control, three general-purpose 16-bit timers, two basic 16-bit timers and up to four 16-bit low-power timers.
The STM32U385xx devices embed a low-power digital filter dedicated to audio signals (ADF), with one filter supporting sound-activity detection. In addition, up to 21 capacitive sensing channels are available.
STM32U3 series also feature standard and advanced communication interfaces such as:
- Three I2Cs
- Two I3Cs
- Three SPIs and one OCTOSPI
- Two USARTs, two UARTs and one low-power UART
- One SAI
- One SDMMC
- One FDCAN
- One USB full-speed (host, or device)
And several peripherals reinforcing security:
- AES coprocessor with DPA-resistance
- One public key accelerator (PKA), DPA resistant
- One HASH (SHA-256) hardware accelerator
- One true random number generator
- Coupling and chaining bridge (CCB)
The STM32U385xx devices offer high protection against transient and environmental perturbation attacks thanks to several internal monitoring generating secret data erase in case of attack.
The devices operate in the -40 to +105 °C (+110 °C junction) temperature ranges from a 1.71 to 3.6 V power supply.
Some independent power supplies are supported like an analog independent supply input for ADC, DAC, OPAMPs and comparators, a 3.3 V dedicated supply input for USB and up to 14 I/Os, that can be supplied independently down to 1.08 V. A VBAT input is available for connecting a backup battery in order to preserve the RTC functionality and to backup 32 32‑bit registers.
The STM32U385xx devices offer 16 packages from 32-pin to 100-pin.
-
特徴
- Includes ST state-of-the-art patented technology.
- Ultra-low-power
- 1.71 V to 3.6 V power supply
- -40 °C to +105 °C temperature range
- VBAT mode: supply for RTC, 32 x 32-bit backup registers
- 1.6 μA Stop 3 mode with 8-Kbyte SRAM
- 2.2 μA Stop 3 mode with full SRAM
- 3.8 μA Stop 2 mode with 8-Kbyte SRAM
- 4.5 μA Stop 2 mode with full SRAM
- 9.5 μA/MHz Run mode @ 3.3 V (While(1) SMPS step-down converter mode)
- 13 μA/MHz Run mode @ 3.3 V/48 MHz (CoreMark® SMPS step-down converter mode)
- 16 μA/MHz Run mode @ 3.3 V/96 MHz (CoreMark® SMPS step-down converter mode)
- Brownout reset (BOR) in all modes except shutdown
- Arm® 32-bit Cortex®-M33 CPU with TrustZone® and FPU
- ART Accelerator
- 8-Kbyte instruction cache allowing 0-wait-state execution from flash and external memories: frequency up to 96 MHz, MPU, 144 DMIPS and DSP instructions
- パワー･マネジメント
- Embedded regulator (LDO) and SMPS step-down converter supporting switch on-the-fly and voltage scaling
- Benchmarks
- 1.5 DMIPS/MHz (Dhrystone 2.1)
- 387 CoreMark®(4.09 CoreMark®/MHz)
- 500 ULPMark™-CP
- 117 ULPMark™-CM
- 202000 SecureMark™-TLS
- メモリ
- 1-Mbyte flash memory with ECC, 2 banks read-while-write
- 256 Kbytes of SRAM including 64 Kbytes with hardware parity check
- OCTOSPI external memory interface supporting SRAM, PSRAM, NOR, NAND, and FRAM memories
- Security and cryptography
- Arm® TrustZone® and securable I/Os, memories, and peripherals
- Flexible life cycle scheme with RDP and password protected debug
- Root of trust due to unique boot entry and secure hide protection area (HDP)
- Secure firmware installation (SFI) from embedded root secure services (RSS)
- Secure data storage with hardware unique key (HUK)
- Secure firmware upgrade
- Support of Trusted firmware for Cortex®M (TF-M)
- Two AES coprocessors, one with side channel attack resistance (SCA) (SAES)
- Public key accelerator, SCA resistant
- Key hardware protection
- Attestation keys
- HASH hardware accelerator
- True random number generator, NIST SP800-90B compliant
- 96-bit unique ID
- 512-byte OTP (one-time programmable)
- Antitamper protection
- Clock management
- 4 to 50 MHz crystal oscillator
- 32.768 kHz crystal oscillator for RTC (LSE)
- Internal 16 MHz factory-trimmed RC (±1 %)
- Internal low-power RC with frequency 32 kHz or 250 Hz (±5 %)
- 2 internal multispeed 3 MHz to 96 MHz oscillators
- Internal 48 MHz with clock recovery
- Accurate MSI in PLL-mode and up to 96 MHz with 32.768 kHz, 16 MHz, or 32 MHz crystal oscillator
- General-purpose inputs/outputs
- Up to 82 fast I/Os with interrupt capability most 5 V-tolerant and up to 14 I/Os with independent supply down to 1.08 V
- Up to 15 timers and 2 watchdogs
- 1x 16-bit advanced motor‑control, 3x 32‑bit and 3x 16‑bit general purpose, 2x 16‑bit basic, 4x low‑power 16‑bit timers (available in Stop mode), 2x watchdogs, 2x SysTick timer
- RTC with hardware calendar, alarms, and calibration
- Up to 19 communication peripherals
- 1 USB 2.0 full-speed controller
- 1 SAI (serial audio interface)
- 3 I2C FM+(1 Mbit/s), SMBus/PMBus™
- 2 I3C (SDR), with support of I2C FM+ mode
- 2 USARTs and 2 UARTs (SPI, ISO 7816, LIN, IrDA, modem), 1 LPUART
- 3 SPIs (6 SPIs including 1 with OCTOSPI + 2 with USART)
- 1 CAN FD controller
- 1 SDMMC interface
- 1 audio digital filter with sound-activity detection
- 12-channel GPDMA controller, functional in Sleep and Stop modes (up to Stop 2)
- Up to 21 capacitive sensing channels
- Support touch key, linear, and rotary touch sensors
- Rich analog peripherals (independent supply)
- 2× 12-bit ADC 2.5 Msps, with hardware oversampling
- 12-bit DAC module with 2 D/A converters, low-power sample and hold, autonomous in Stop 1 mode
- 2 operational amplifiers with built-in PGA
- 2 ultralow-power comparators
- CRC calculation unit
- デバッグ
- Development support: serial-wire debug (SWD), JTAG, Embedded Trace Macrocell™ (ETM)
- All packages are ECOPACK2 compliant.
回路ダイアグラム
おすすめ製品
注目ビデオ
One number sums up the efficiency of the STM32U3: at 117 Coremark/mW, it breaks the 100 symbolic threshold, literally making it a new benchmark in the industry.
Introducing the STM32U3, our best-in-class low-power consumption microcontroller featuring a 96 MHz Arm© Cortex©-M33 core.
Recommended Tools & Software
EDAシンボル / フットプリント / 3Dモデル
STマイクロエレクトロニクス - STM32U385KG
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Please select one model supplier :
EDAシンボル
フットプリント
3Dモデル
すべてのリソース
| タイトル | バージョン | 更新日 |
|---|
BSDL files (1)
| タイトル | バージョン | 更新日 | ||
|---|---|---|---|---|
| ZIP | 1.0 | 27 Jan 2025 | 27 Jan 2025 |
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** |
|---|---|---|---|---|---|---|
| STM32U385KGU6 | 量産中 | UFQFPN 32 5x5x0.55 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
| 製品型番 | 製品ステータス | Budgetary Price (US$)*/Qty | STから購入 | Order from distributors | パッケージ | 梱包タイプ | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | D/A Converters (typ) (12-bit) | Timers (typ) (16-bit) | Timers (typ) (32-bit) | Number of Channels (typ) | SMPS | Number of Channels (typ) | UART (typ) | I/Os (High Current) | Integrated op-amps | Comparator | SPI (typ) | USART (typ) | Number of Channels (typ) | I2S (typ) | Advanced Motor Control Timers | CAN (2.0) | CAN (FD) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STM32U385KGU6 | 量産中 | 2.6222 / 10k | 2 distributors | UFQFPN 32 5x5x0.55 mm | Tray | CHINA | 5A992.c | NEC | 2 | 3 | 3 |
|
|
| 1 | 26 | 2 | 2 | 2 | 3 | 10 |
| 1 |
| 1 |
STM32U385KGU6 量産中
（*）概算用の参考価格（US$）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。