ATSAML11E15A-MUT - SAM L11 Cortex-M23 32KB TrustZone MCU
料号： ATSAML11E15A-MUT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.99 | $2.99 |
| 10 | $2.85 | $28.50 |
| 100 | $2.45 | $245.00 |
| 500 | $2.18 | $1,090.00 |
| 1,000 | $1.95 | $1,950.00 |
ATSAML11E15A-MUT 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals such as ADCs, timers, communication interfaces, and GPIO into one package. The Cortex-M23 sits at the entry level of the Arm Cortex-M family and adds TrustZone isolation, allowing secure and non-secure code to run on the same core with hardware-enforced separation. MCUs belong to the broader category of embedded processors, sitting below microprocessors (MPUs) in compute complexity but above simple 8-bit controllers in capability.
The ATSAML11E15A-MUT differentiates itself with chip-level security features that are rare in this price range. It integrates secure key storage, hardware cryptographic accelerators, true random number generator (TRNG), secure boot, and chip-level tamper detection. Combined with TrustZone, this enables firmware IP protection, secure over-the-air (OTA) updates, and resistance to physical tampering attacks - features typically reserved for more expensive secure elements.
From an architecture standpoint, the SAM L11 uses a single-cycle I/O bus for deterministic GPIO response and supports Microchip's Event System for inter-peripheral signalling without CPU intervention. Its peripheral set includes a 12-bit ADC, 10-bit DAC, multiple SERCOM (configurable serial communication) instances usable as UART/SPI/I2C, and a Real-Time Clock (RTC). The 32-VQFN package provides an exposed thermal pad (EP) that must be soldered to the PCB ground plane to meet thermal and electrical specifications.
Typical applications include IoT sensor nodes, secure wearables, smart meters, medical consumables, anti-counterfeiting authentication tokens, and battery-powered industrial edge devices. Designers pick this part specifically when on-chip secure key storage and TrustZone isolation outweigh the need for larger memory.
When designing the PCB, the exposed pad must be soldered to a grounded copper pour of at least 4 thermal vias to meet the rated thermal performance. The internal 32 kHz ultra-low-power oscillator can be used as the low-frequency clock source to further reduce sleep-mode current, but its startup time is several hundred milliseconds - factor this into latency-critical wake-up paths.
This page synthesises distributor pricing, cross-reference data, and design considerations not found in a single manufacturer datasheet, enabling faster component selection and PCB bring-up.
直接替换替代料： ATSAML11E15A-MUT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ATSAML11E15A-MUT （相同外形与封装尺寸） ——差异在于 Package, Security Features, ADC, Core Architecture, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
ATSAML11E15A-MU
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.55 / 个
查看数据手册 →ATSAML11E15A-MFT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.89 / 个
查看数据手册 →ATSAML11E15A-AUT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.07 / 个
查看数据手册 →ATSAML11E16A-MUT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.07 / 个
查看数据手册 →ATSAML11E15A-UFT
✅ 直接替换📋 参考替代料（不在目录中）
ATSAML11E15A-MFT
✅ 直接替换✓ 有现货
$1.89 / 个
查看数据手册 →ATSAML11E15A-MUT 最大额定值与电气特性
| Core Architecture | ARM Cortex-M23 with TrustZone |
| Core Width | 32-bit |
| Maximum Clock Speed | 32 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| SRAM | 8 KB |
| 封装 | 32-pin VQFN (5x5 mm) with exposed pad |
| 安装类型 | Surface Mount |
| Active Current | <25 µA/MHz |
| Sleep Current | <100 nA |
| 工作温度范围 | -40 °C to +85 °C (industrial) |
| ADC | 12-bit |
| DAC | 10-bit |
| Security Features | TrustZone, secure boot, secure key storage, TRNG, hardware crypto accelerators, tamper detection |
| RoHS 状态 | Compliant |
| Packaging | Tape & Reel (MUT suffix) |
ATSAML11E15A-MUT 引脚配置
| 引脚 1 | PA00 — GPIO / SERCOM1[0] / TCC0[0] |
| 引脚 2 | PA01 — GPIO / SERCOM1[1] / TCC0[1] |
| 引脚 3 | PA02 — GPIO / SERCOM0[0] / ADC[0] |
| 引脚 4 | PA03 — GPIO / SERCOM0[1] / ADC[1] / DAC |
| 引脚 5 | PA04 — GPIO / SERCOM0[2] / ADC[2] |
| 引脚 6 | PA05 — GPIO / SERCOM0[3] / ADC[3] |
| 引脚 7 | PA06 — GPIO / SERCOM2[0] / ADC[4] |
| 引脚 8 | PA07 — GPIO / SERCOM2[1] / ADC[5] |
| 引脚 9 | VDD — Digital supply voltage |
| 引脚 10 | GND — Ground |
| 引脚 11 | PA08 — GPIO / SERCOM2[2] |
| 引脚 12 | PA09 — GPIO / SERCOM2[3] |
| 引脚 13 | PA10 — GPIO / SERCOM0[2] |
| 引脚 14 | PA11 — GPIO / SERCOM0[3] |
| 引脚 15 | PA14 — GPIO / SERCOM2[2] / XIN |
| 引脚 16 | PA15 — GPIO / SERCOM2[3] / XOUT |
| 引脚 17 | PA16 — GPIO / SERCOM1[0] / I2C SDA |
| 引脚 18 | PA17 — GPIO / SERCOM1[1] / I2C SCL |
| 引脚 19 | PA18 — GPIO / SERCOM1[2] |
| 引脚 20 | PA19 — GPIO / SERCOM1[3] |
| 引脚 21 | PA22 — GPIO / SERCOM1[0] |
| 引脚 22 | PA23 — GPIO / SERCOM1[1] |
| 引脚 23 | PA24 — GPIO / SERCOM1[2] |
| 引脚 24 | PA25 — GPIO / SERCOM1[3] |
| 引脚 25 | PB02 — GPIO / ADC[10] |
| 引脚 26 | PB03 — GPIO / ADC[11] |
| 引脚 27 | PB08 — GPIO / SERCOM4[0] |
| 引脚 28 | PB09 — GPIO / SERCOM4[1] |
| 引脚 29 | PB10 — GPIO / SERCOM4[2] |
| 引脚 30 | PB11 — GPIO / SERCOM4[3] |
| 引脚 31 | RESET — Reset input (active low) |
| 引脚 32 | SWDIO — SWD data / GPIO |
| 引脚 33 | EP — Exposed thermal pad - must be soldered to ground plane |
典型应用
ATSAML11E15A-MUT 适用于 6 应用s: Battery-Powered IoT Sensor Node, Secure Wearable Health Device, Smart Meter / Utility Endpoint, Anti-Counterfeiting Authentication Token, Industrial Edge Sensor Hub, Secure Remote Keyless Entry (RKE).
Battery-Powered IoT Sensor Node
The ATSAML11E15A-MUT is well suited to battery-powered IoT sensor nodes because its <25 µA/MHz active current and <100 nA deep-sleep current enable multi-year lifetimes from a single CR2032 coin cell. The 32 KB Flash is sufficient for typical sensor-fusion firmware, while TrustZone isolates the cryptographic key store from application code, preventing firmware-extraction attacks. The Cortex-M23 core runs at 32 MHz, ample for low-rate sensor sampling (1 Hz to 1 kHz) and short LoRaWAN/Sigfox transmissions, and the SERCOM peripherals can be flexibly configured as I2C for environmental sensors and SPI for a sub-GHz radio. Designers benefit from integrated 12-bit ADC and 10-bit DAC without external components, shrinking the BOM. Trade-off: at high VIN-VOUT differential or in continuous active mode the device still draws measurable power; pair it with a sleep-dominant firmware architecture.
推荐
Secure Wearable Health Device
Wearable health monitors such as continuous glucose monitors, ECG patches, and smart inhalers require both low power and strong security - a fit for the ATSAML11E15A-MUT. TrustZone enforces hardware isolation between the secure biometric template storage and the main application code, while secure boot prevents malicious firmware injection. The Cortex-M23 with TrustZone runs medical-grade encryption libraries (e.g. AES, SHA-256) with hardware acceleration, and the 8 KB SRAM accommodates small encryption buffers. Its sub-100 nA sleep current extends patch lifetime beyond 7 days, and the 12-bit ADC captures bioelectric signals with sufficient resolution for heart-rate and respiration detection. The 5x5 mm VQFN-32 package fits inside the tight confines of disposable patches.
推荐
Smart Meter / Utility Endpoint
Smart electricity, gas, and water meters require secure data logging, tamper detection, and multi-year battery life - all native to the ATSAML11E15A-MUT. The chip-level tamper detection feature triggers interrupts or secure erase on physical intrusion, while TrustZone protects the metrology calibration data and cryptographic keys. The RTC with calendar mode supports time-of-use billing without an external RTC chip, and the SERCOMs can simultaneously drive a UART for the metrology SoC, an I2C EEPROM, and an SPI display. The 32 KB Flash is sufficient for metering firmware plus DLMS/COSEM or Wireless M-Bus protocol stacks. Industrial -40 °C to +85 °C operation covers outdoor utility cabinets, and <100 nA sleep extends battery life to 10+ years on metrology-grade lithium cells.
推荐
Anti-Counterfeiting Authentication Token
Authentication tokens for printer cartridges, medical disposables, and high-value accessories use cryptographic challenge-response to verify originality - the ATSAML11E15A-MUT is engineered for exactly this role. Its secure key storage holds private authentication keys in a TrustZone-isolated region that even privileged firmware cannot extract, and its hardware crypto accelerators complete ECDSA or AES-128 challenges in microseconds. The Cortex-M23 core handles the protocol stack and timing-critical I/O, while tamper detection triggers immediate key zeroisation on physical intrusion. The 32 KB Flash fits a full authentication firmware with crypto library and protocol stack. The 5x5 mm VQFN-32 package and minimal external BOM allow embedding the token directly inside cartridges without altering host product dimensions.
推荐
Industrial Edge Sensor Hub
Industrial edge sensor hubs aggregate data from multiple analog and digital sensors and forward processed values via IO-Link, Modbus, or Ethernet/IP. The ATSAML11E15A-MUT provides multiple SERCOM interfaces that can simultaneously drive I2C sensor arrays, SPI ADCs, and a UART-connected IO-Link transceiver, while its 12-bit ADC and 10-bit DAC cover analog I/O requirements. TrustZone isolates the secure boot loader and the signed firmware image from the user-modifiable application partition, enabling safe field updates. The Cortex-M23 core at 32 MHz handles light DSP such as moving-average filtering, threshold detection, and MODBUS CRC generation. The industrial -40 °C to +85 °C range covers factory-floor deployments, and the VQFN-32's exposed pad ensures robust thermal performance for continuous-operation cases.
推荐
Secure Remote Keyless Entry (RKE)
Automotive and building RKE fobs demand ultra-low sleep current, secure rolling-code generation, and small PCB area - all delivered by the ATSAML11E15A-MUT. The hardware random number generator (TRNG) supplies entropy for unpredictable rolling codes that resist replay attacks, while TrustZone isolates the secret key material from user-accessible firmware. At <100 nA sleep, the device can sit in standby for years on a CR2032 cell waiting for a button interrupt. SERCOM peripherals drive SPI 2.4 GHz radios (or sub-GHz) and a UART-connected LED indicator. The automotive-grade variant ATSAML11E15A-AUT provides AEC-Q100 qualification for OEM key-fob programs.
推荐
推荐产品汇总
工程参考数据： ATSAML11E15A-MUT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ATSAML11E15A-MU | ATSAML11E15A-MFT | ATSAML11E15A-AUT | ATSAML11E16A-MUT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 32-VQFN (5x5) | 32-VQFN (5x5) - same | 32-VQFN (5x5) - same | 32-VQFN (5x5) - same | 32-VQFN (5x5) - same |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 64 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 16 KB |
| Core / Architecture | Cortex-M23 + TrustZone | Cortex-M23 + TrustZone | Cortex-M23 + TrustZone | Cortex-M23 + TrustZone | Cortex-M23 + TrustZone |
| Maximum Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +105 °C | -40 °C to +125 °C (AEC-Q100) | -40 °C to +85 °C |
| Automotive Grade (AEC-Q100) | No | No | No | Yes | No |
| Packaging Format | Tape & Reel | Tray | Tape & Reel | Tape & Reel | Tape & Reel |
关键差异点
- Lowest-power Cortex-M23 with TrustZone hardware isolation （对比 ATSAML10E15A-MUT)
- Drop-in compatibility with 64 KB Flash upgrade path （对比 ATSAML11E16A-MUT)
- Automotive-qualified variant available in same package （对比 ATSAML11E15A-AUT)
设计说明
The 32-VQFN package has an exposed thermal pad (pin 33) that MUST be soldered to a PCB ground copper pour with at least 4 thermal vias to meet the datasheet's thermal and electrical specifications. Per Microchip SAM L11 hardware design notes, an unsoldered EP increases junction-to-ambient thermal resistance, degrades ADC accuracy due to ground bounce, and can cause EMC compliance failures. Keep the EP pour unbroken across all layers and stitch vias at the pad centre.
To achieve the <100 nA deep-sleep current specified for the ATSAML11E15A-MUT, configure unused GPIO as input with enabled pull-downs (not floating), disable all SERCOM peripherals before standby, and switch the main clock to the internal 32 kHz ultra-low-power oscillator before WFI. Estimated: enabling SERCOM3 and SERCOM4 in standby typically adds 2-5 µA; verify on hardware with a source-measure unit. The MCU's built-in Power Manager supports multiple sleep modes (Idle, Standby, Backup, Off); only Backup mode retains RAM and achieves the <100 nA figure.
When routing the SWD interface (SWDIO/SWCLK on dedicated pins), place a 100 nF decoupling capacitor within 2 mm of each VDD pin and keep SWD traces under 50 mm to avoid debugger communication errors. The RESET pin is internally pulled-up but adding an external 10 kΩ pull-up and 1 nF capacitor improves noise immunity in industrial environments. The exposed pad (EP) must connect to the same ground reference as decoupling capacitors to avoid ground loops.
Common pitfalls with the ATSAML11E15A-MUT include: (1) using TrustZone without configuring the Non-Secure Callable (NSC) gateway - secure functions called from Non-Secure code will trap; (2) erasing Flash during ADC conversion - this corrupts the ADC reading; (3) exceeding the 32 MHz clock rate with the PLL when VDD < 1.62 V. Read the SAM L11 silicon errata (document DS80000961) before finalising firmware, as TrustZone integration issues are typically fixed in errata rather than datasheet.
合规信息
RoHS and REACH compliant per Microchip product page. The standard ATSAML11E15A-MUT is not AEC-Q100 qualified - choose the -AUT suffix variant for automotive applications. Lead-free and halogen-free per Microchip environmental compliance documentation.
