ATSAML11E14A-MU - 32MHz Cortex-M23 TrustZone MCU 16KB Flash | Microchip
MPN: ATSAML11E14A-MU ✓ فعالATSAML11E14A-MU جائزہ
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and peripherals. Within the embedded hierarchy, the ATSAML11E14A-MU is an ARM Cortex-M23 core -> Cortex-M family -> 32-bit RISC processor -> embedded MCU -> semiconductor. The Cortex-M23 is the smallest and most energy-efficient ARMv8-M core, designed for IoT edge nodes that benefit from TrustZone-M for firmware isolation.
Key features include ARM TrustZone-M hardware isolation, secure boot with secure key storage, chip-level tamper resistance, and a True Random Number Generator (TRNG). Active-mode current is under 25 uA/MHz, and sleep-mode current drops below 100 nA, making the device suitable for battery-powered applications. The part supports 1.6V to 3.6V supply operation and includes a 32-bit Cortex-M23 core, 16 KB Flash, 8 KB SRAM, and a 32-pin VQFN package with an exposed thermal pad.
From an architectural standpoint, the SAM L11 integrates a Cortex-M23 core, a separate Cortex-M0+ core dedicated to secure-boot firmware, on-chip voltage regulation, and a TrustZone-aware bus matrix. The crypto block includes AES, SHA, and secure key storage; the peripheral set includes SERCOM, ADC, DAC, and timers. Together, these features provide defense-grade security at sub-dollar BOM cost.
Typical applications include IoT end nodes, secure sensor hubs, smart utility meters, medical wearables, and HomeKit/Zigbee/Thread/BLE bridge devices. For each use case, the MCU balances low active current, hardware-enforced secure/non-secure isolation, and a small 5x5 mm footprint.
When designing with the ATSAML11E14A-MU, allocate the secure region in the linker script and configure the TrustZone Attribution Unit (TAU) before non-secure code is generated. Use MPLAB X IDE with MCC harmony for peripheral configuration, and observe VDD decoupling guidelines from the SAM L11 datasheet.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a one-stop view of the part's value proposition.
کے لیے ڈراپ اِن متبادل ATSAML11E14A-MU — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں ATSAML11E14A-MU (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Core, Flash Memory, Operating Temperature, Core Architecture.
ATSAML11E15A-MU
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAML11E14A-MUT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAML11D14A-MUT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAML11E14A-AUT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAML11D15A-MU
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAML10E16A-MU
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAML11E14A-MU زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core | ARM Cortex-M23 |
| Core Architecture | ARMv8-M (TrustZone-M) |
| زیادہ سے زیادہ کلاک فریکوئنسی | 32 MHz |
| Program Memory Size | 16 KB (16K x 8) Flash |
| RAM Size | 8 KB |
| Supply Voltage Range | 1.6 V to 3.6 V |
| آپریٹنگ درجہ حرارت رینج | -40 C to +85 C |
| پیکیج | 32-pin VQFN (5x5 mm) with Exposed Pad |
| ماؤنٹنگ ٹائپ | Surface Mount |
| I/O Pins | 25 |
| Active Mode Current | < 25 uA/MHz |
| Sleep Mode Current | < 100 nA |
| Connectivity | I2C, LINbus, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Security Features | ARM TrustZone-M, secure boot, secure key storage, TRNG, tamper detection |
| MSL لیول | MSL3 |
| RoHS اسٹیٹس | Compliant |
ATSAML11E14A-MU پن کنفیگریشن
| پن 1 | PA00 — GPIO / XIN (external clock input) |
| پن 2 | PA01 — GPIO / XOUT (external clock output) |
| پن 3 | GND — Ground |
| پن 4 | VDDIO — Digital I/O supply voltage |
| پن 5 | VDDIN — Main supply voltage input |
| پن 6 | PA02 — GPIO / AIN[0] (ADC input) |
| پن 7 | PA03 — GPIO / AIN[1] (ADC input) / VREFA reference |
| پن 8 | PA04 — GPIO / AIN[2] / TC[0] WO[0] |
| پن 9 | PA05 — GPIO / AIN[3] |
| پن 10 | PA06 — GPIO / AIN[4] / SERCOM0 PAD[0] |
| پن 11 | PA07 — GPIO / AIN[5] / SERCOM0 PAD[1] |
| پن 12 | PA08 — GPIO / AIN[6] / NMI (non-maskable interrupt) |
| پن 13 | PA09 — GPIO / AIN[7] |
| پن 14 | PA10 — GPIO / AIN[8] / SERCOM0 PAD[2] |
| پن 15 | PA11 — GPIO / AIN[9] / SERCOM0 PAD[3] |
| پن 16 | PA14 — GPIO / XIN32 / SERCOM2 PAD[2] |
| پن 17 | PA15 — GPIO / XOUT32 / SERCOM2 PAD[3] |
| پن 18 | PA16 — GPIO / SERCOM1 PAD[0] / I2S FS |
| پن 19 | PA17 — GPIO / SERCOM1 PAD[1] / I2S SCK |
| پن 20 | PA18 — GPIO / SERCOM1 PAD[2] / I2S MCK |
| پن 21 | PA19 — GPIO / SERCOM1 PAD[3] / I2S SDO |
| پن 22 | PA20 — GPIO / SERCOM3 PAD[0] |
| پن 23 | PA21 — GPIO / SERCOM3 PAD[1] |
| پن 24 | PA22 — GPIO / SERCOM3 PAD[2] |
| پن 25 | PA23 — GPIO / SERCOM3 PAD[3] |
| پن 26 | PA24 — GPIO / USB DP (USB data plus) |
| پن 27 | PA25 — GPIO / USB DN (USB data minus) |
| پن 28 | PA27 — GPIO / TC[1] WO[0] |
| پن 29 | RESET — Reset input (active low) |
| پن 30 | SWDIO — Debug data |
| پن 31 | SWCLK — Debug clock |
| پن 32 | VDDCORE — Internal core voltage (decoupling cap) |
| پن EP | Exposed Pad — Must be soldered to ground for thermal dissipation |
عام استعمالات
ATSAML11E14A-MU کے لیے موزوں ہے 6 ایپلیکیشنs: IoT Edge Nodes with Secure Boot, Smart Utility Meters (Gas/Water/Electric), Wearable Medical Devices, HomeKit/Zigbee/Thread Bridge Devices, Battery-Powered Sensor Hubs, Secure Access Control / Smart Locks.
IoT Edge Nodes with Secure Boot
The ATSAML11E14A-MU is purpose-built for IoT edge nodes that require hardware-isolated secure firmware. Its ARM TrustZone-M creates an isolated secure domain for bootloaders and key storage, while non-secure application code runs in a separate memory region that cannot read or modify secure assets. With under 25 uA/MHz active current and sub-100 nA sleep current, the part enables multi-year battery life on coin cells. The 16 KB Flash is sufficient for Thread/Zigbee/BLE stacks when paired with an external radio. A reference design (AN2841) walks through provisioning secure keys via the TrustZone Attribution Unit.
تجویز کردہ
Smart Utility Meters (Gas/Water/Electric)
Smart meters need tamper detection, secure key storage, and ultra-low standby current to meet 10-20 year battery life. The ATSAML11E14A-MU integrates chip-level tamper detection pins and a hardware TRNG for cryptographic metering keys. The Cortex-M23 at 32 MHz handles DLMS/COSEM or wireless M-Bus protocol stacks, while the SERCOM peripherals drive UART/I2C/SPI interfaces to metrology ADCs. The 1.6-3.6 V supply range accommodates single-cell Li-SOCl2 batteries. Reference firmware is available in the Atmel START / MPLAB Harmony ecosystem.
تجویز کردہ
Wearable Medical Devices
Wearable medical patches and continuous glucose monitors require IEC 62304-considered firmware isolation, sub-100 nA standby current, and a tiny footprint. The ATSAML11E14A-MU delivers TrustZone-M isolation between safety-critical and non-critical code, a 5x5 mm VQFN package for thin-form-factor PCB integration, and ultra-low sleep current suitable for body-worn patches. The on-chip 12-bit ADC and DAC enable direct biosensor interfacing without external converters. The -40C to +85C temperature range covers skin and body-worn operating conditions.
تجویز کردہ
HomeKit/Zigbee/Thread Bridge Devices
Smart-home hubs and bridges benefit from the ATSAML11E14A-MU's hardware root-of-trust and small footprint. The Cortex-M23 core can run a Thread/Zigbee/BLE stack with secure commissioning using the TrustZone-M isolated region for storing commissioning keys. The 32-pin VQFN layout keeps the MCU footprint under 25 mm² on the bridge PCB, leaving room for the radio module. The integrated DMA and 25 GPIO pins support multiple sensor inputs and RGB indicator LEDs on the bridge.
تجویز کردہ
Battery-Powered Sensor Hubs
Industrial sensor hubs that aggregate data from multiple field sensors need long battery life, hardware-accelerated crypto, and small PCB area. The ATSAML11E14A-MU consumes less than 25 uA/MHz in active mode and less than 100 nA in standby, suiting 5-10 year battery life targets. The integrated AES and SHA blocks accelerate TLS handshakes without loading the Cortex-M23 core. The 25 GPIO pins provide ample connectivity for I2C/SPI sensor clusters and digital IO. The 1.6 V minimum supply allows direct operation from a single alkaline cell.
تجویز کردہ
Secure Access Control / Smart Locks
Smart locks and access controllers need secure key storage, tamper detection, and reliable BLE/Zigbee connectivity. The ATSAML11E14A-MU's TrustZone-M isolates the BLE pairing keys and the tamper-detection firmware from the main application, preventing firmware-side attacks. The Cortex-M23 at 32 MHz handles BLE radio control via SERCOM and crypto operations via the on-chip AES accelerator. The wide 1.6-3.6 V supply range accommodates 4xAA or single-cell Li-ion battery packs. The exposed pad provides thermal relief for continuous RF transmission.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا ATSAML11E14A-MU — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | ATSAML11E15A-MU | ATSAML11E14A-MUT | ATSAML11D14A-MUT | ATSAML10E16A-MU |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 32-pin VQFN (5x5 mm) | 32-pin VQFN (5x5 mm) - same | 32-pin VQFN (5x5 mm) - same | 32-pin VQFN (5x5 mm) - same | 32-pin VQFN (5x5 mm) - same |
| Core | ARM Cortex-M23 (32 MHz) | ARM Cortex-M23 (32 MHz) | ARM Cortex-M23 (32 MHz) | ARM Cortex-M23 (32 MHz) | ARM Cortex-M23 (32 MHz) |
| Flash | 16 KB | 32 KB (+100%) | 16 KB (same) | 16 KB (same) | 32 KB (+100%) |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| TrustZone-M Hardware Isolation | Yes | Yes | Yes | Yes | No (SAM L10 family) |
| Secure Boot / Key Storage | Yes | Yes | Yes | Yes | No |
| Supply Voltage | 1.6 V to 3.6 V | 1.6 V to 3.6 V | 1.6 V to 3.6 V | 1.6 V to 3.6 V | 1.6 V to 3.6 V |
اہم امتیازی خصوصیات
- Only Microchip Cortex-M23 with TrustZone-M hardware isolation (بمقابلہATSAML10E16A-MU)
- Industry's lowest-power Cortex-M23 with sub-25 uA/MHz active (بمقابلہATSAML11E14A-MUT)
- Doubles Flash without changing the PCB footprint (بمقابلہATSAML11E15A-MU)
ڈیزائن نوٹس
The ATSAML11E14A-MU integrates a 1.2 V core LDO that derives from VDDIN (1.6-3.6 V). Decouple VDDIN with 1 uF + 100 nF X7R ceramics placed within 2 mm of the pin, and place a 1 uF X7R cap on VDDCORE (pin 32) for the internal regulator. In sleep mode, the part draws less than 100 nA with full RAM retention, which is critical for coin-cell battery life. Estimated: assuming a CR2032 (220 mAh) and 100 nA standby, the standby life exceeds 250 years. Use the Power Manager (PM) peripheral to gate unused peripherals.
The 32-pin VQFN package has an exposed thermal pad (pin EP) that must be soldered to a continuous ground copper pour for both electrical grounding and thermal dissipation. Without the EP soldered, junction-to-ambient thermal resistance rises sharply, and the device may throttle or trigger thermal shutdown under sustained Cortex-M23 + crypto load. Estimated: with 25 mm^2 of 1 oz copper on the EP, theta_JA is approximately 38 C/W; without EP soldering, theta_JA exceeds 100 C/W.
Place the SWDIO (pin 30) and SWCLK (pin 31) traces as short as possible (under 50 mm) and avoid crossing them with high-current or high-frequency signals to prevent debug probe noise. The RESET (pin 29) requires a 10 kOhm pull-up to VDDIO and a 1 nF cap to ground for noise immunity. Route the SERCOM and ADC analog signals on the inner PCB layers with a continuous ground reference plane below for signal integrity.
Do not skip TrustZone Attribution Unit (TAU) configuration in the linker script before generating non-secure code - the secure region must be locked before the first non-secure call or the security boundary is meaningless. The 16 KB Flash region is split between secure and non-secure; allocating too much to the secure bootloader leaves little for application code. Always program the user row (NVM bits) with the BOOTPROT and SECUMASK settings before production. The Cortex-M23 vector table offset register (VTOR) must point to the non-secure alias for application code.
The ATSAML11E14A-MU SERCOM peripherals support I2C, SPI, and UART modes with configurable drive strength. For I2C buses exceeding 100 kHz with multiple slaves, use 4.7 kOhm pull-ups (not 10 kOhm) to meet the rise-time spec. The 12-bit ADC has 1 MSPS throughput but is sensitive to digital switching noise; sample AIN inputs during DMA-driven modes and avoid sampling during active Cortex-M23 interrupt bursts. Add a 100 nF cap directly on each AIN pin used.
تعمیل کی معلومات
RoHS and REACH compliant per Microchip product page. AEC-Q100 not applicable - SAM L11 is not automotive-grade. For automotive applications, choose SAM S70/V70/V71 or ATSAMx automotive variants.
