ATSAMD20E15A-MNT - 32KB Flash Cortex-M0+ MCU | Microchip
部品番号: ATSAMD20E15A-MNT ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.49 | $24.90 |
| 100 | $2.1 | $210.00 |
| 500 | $1.79 | $895.00 |
| 1,000 | $1.55 | $1,550.00 |
ATSAMD20E15A-MNT 概要
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, and communication controllers. Within the broader taxonomy, the ATSAMD20E15A belongs to the category of 32-bit microcontrollers -> ARM Cortex-M0+ microcontrollers -> low-power MCUs -> embedded controllers -> semiconductors. ARM Cortex-M0+ cores are favored for their deterministic interrupt response, Thumb-2 instruction set efficiency, and ultra-low active/idle power, making them ideal for always-on battery-powered applications.
Key features of this device include the SAM D20 Event System for hardware-triggered inter-peripheral signalling without CPU intervention, six SERCOM modules each configurable as I2C/SPI/UART, a 12-bit 350 ksps ADC with up to 20 analog input channels via the AIN mux, and dual analog comparators with window mode. The device also integrates a 32.768 kHz RTC oscillator domain and full-speed USB device support is NOT available on the 32-pin variant - that requires the D20J (64-pin).
Architecturally, the SAM D20 uses Microchip's proprietary low-power techniques including a separated SleepWalking peripheral domain, multiple power domains (PD0/PD1/PD2), and a backup register domain retained through deepest sleep. The Cortex-M0+ core delivers 2.14 CoreMark/MHz and supports single-cycle GPIO access through the IOBUS peripheral, enabling fast bit-banging for WS2812 LEDs or other timing-sensitive protocols.
Typical applications include IoT sensor nodes, home automation endpoints, industrial control sub-modules, consumer wearable MCUs, smart metering, and low-cost HMI touch-button interfaces. The wide operating voltage range (1.62-3.63 V) makes it directly compatible with 1.8 V, 2.5 V, and 3.3 V power rails commonly used in modern SoC companion designs.
When designing with this MCU, allocate the 32 KB Flash budget carefully: a typical USB stack or graphics library will not fit, but bare-metal or FreeRTOS-based sensor applications have ample headroom. Ensure the VQFN-5x5 thermal pad is soldered to a grounded copper pour of at least 10 mm² for proper thermal dissipation and electrical grounding of the exposed pad.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet. Compared to vendor product pages, this entry emphasizes pin-compatible family members, AEC-Q100 variants for automotive, and validated same-package drop-in replacements for shortage mitigation.
ドロップイン代替品: ATSAMD20E15A-MNT — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: ATSAMD20E15A-MNT （同一形状・フットプリント） — 相違点: Package, SRAM, SERCOM Modules, ADC, RoHS Status.
クイック比較ツール — 並列比較する代替部品を選択:
ATSAMD20E15A-MU
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ATSAMD20E14A-MNT
✅ ドロップイン✓ 在庫あり
$1.28 / 個
データシートを見る →ATSAMD20E16A-MNT
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.85 / 個
データシートを見る →ATSAMC20E15A-MNT
✅ ドロップイン✓ 在庫あり
$1.42 / 個
データシートを見る →ATSAMD20E15A-AN
✅ ドロップイン✓ 在庫あり
$1.55 / 個
データシートを見る →ATSAMD20E15A-MNT 最大定格＆電気的特性
| Core | ARM Cortex-M0+ (32-bit) |
| Maximum CPU Frequency | 48 MHz |
| Flash Memory | 32 KB |
| SRAM | 4 KB |
| Operating Voltage Range | 1.62 V to 3.63 V |
| 動作温度範囲 | -40 °C to +105 °C (industrial) |
| パッケージ | 32-pin VQFN (5x5 mm) |
| 実装タイプ | Surface Mount |
| SERCOM Modules | 6 (configurable as I2C / SPI / UART) |
| ADC | 12-bit, up to 350 ksps, 20 channels |
| Analog Comparators | 2 |
| Timers/Counters | TC (16-bit) x3 + TCC (24-bit) x2 + RTC x1 |
| GPIO Count | 26 (maximum, package-dependent) |
| DMA Channels | 12 |
| RoHS ステータス | Compliant |
| MSLレベル | 3 |
| AEC-Q100 | Not qualified (industrial grade) |
ATSAMD20E15A-MNT ピン構成
| ピン 1 | PA00 — GPIO / SERCOM1 PAD0 / ADC AIN0 |
| ピン 2 | PA01 — GPIO / SERCOM1 PAD1 / ADC AIN1 |
| ピン 3 | PA02 — GPIO / SERCOM0 PAD0 / ADC AIN2 |
| ピン 4 | PA03 — GPIO / SERCOM0 PAD1 / ADC AIN3 / REF |
| ピン 5 | GND — Ground |
| ピン 6 | VDD — Main supply 1.62-3.63 V |
| ピン 7 | PA04 — GPIO / SERCOM0 PAD2 / ADC AIN4 |
| ピン 8 | PA05 — GPIO / SERCOM0 PAD3 / ADC AIN5 |
| ピン 9 | PA06 — GPIO / SERCOM0 PAD0 / ADC AIN6 |
| ピン 10 | PA07 — GPIO / SERCOM0 PAD1 / ADC AIN7 |
| ピン 11 | PA08 — GPIO / SERCOM2 PAD0 / ADC AIN8 |
| ピン 12 | PA09 — GPIO / SERCOM2 PAD1 / ADC AIN9 |
| ピン 13 | PA10 — GPIO / SERCOM2 PAD2 / ADC AIN10 |
| ピン 14 | PA11 — GPIO / SERCOM2 PAD3 / ADC AIN11 |
| ピン 15 | GND — Ground |
| ピン 16 | VDD — Main supply 1.62-3.63 V |
| ピン 17 | PA14 — GPIO / SERCOM3 PAD2 / XIN (32.768 kHz) |
| ピン 18 | PA15 — GPIO / SERCOM3 PAD3 / XOUT (32.768 kHz) |
| ピン 19 | PA16 — GPIO / SERCOM1 PAD0 / I2S SD0 |
| ピン 20 | PA17 — GPIO / SERCOM1 PAD1 / I2S MCK0 |
| ピン 21 | PA18 — GPIO / SERCOM1 PAD2 / I2S FS0 |
| ピン 22 | PA19 — GPIO / SERCOM1 PAD3 / I2S SCK0 |
| ピン 23 | PA20 — GPIO / SERCOM5 PAD2 / TC4 WO0 |
| ピン 24 | PA21 — GPIO / SERCOM5 PAD3 / TC4 WO1 |
| ピン 25 | PA22 — GPIO / SERCOM3 PAD0 / TC0 WO0 |
| ピン 26 | PA23 — GPIO / SERCOM3 PAD1 / TC0 WO1 |
| ピン 27 | PA24 — GPIO / SERCOM3 PAD2 / USB D- (NOT bonded on E variant) |
| ピン 28 | PA25 — GPIO / SERCOM3 PAD3 / USB D+ (NOT bonded on E variant) |
| ピン 29 | RESET — Active-low reset input |
| ピン 30 | VDDCORE — Core voltage decoupling (1.2 V LDO output) |
| ピン 31 | GND — Ground |
| ピン 32 | VDD — Main supply 1.62-3.63 V |
主な用途
ATSAMD20E15A-MNT の用途: 6 件s: IoT Sensor Nodes, Home Automation Endpoints, Industrial Control Sub-Modules, Consumer Wearable MCUs, Smart Metering Endpoints, Low-Cost HMI Touch-Button Interfaces.
IoT Sensor Nodes
The ATSAMD20E15A-MNT is ideal for IoT sensor nodes thanks to its 48 MHz Cortex-M0+ core, six SERCOM channels, 12-bit ADC, and SleepWalking peripherals that wake the CPU only on pre-configured analog/digital events. Power consumption drops below 1 µA in standby retention, making it suitable for coin-cell powered environmental sensors that must operate for years. The 32 KB Flash is ample for FreeRTOS + sensor fusion algorithms and BLE-over-UART passthrough firmware.
おすすめ
Home Automation Endpoints
Home automation sub-modules such as smart light controllers, motorized blinds, and HVAC dampers benefit from the ATSAMD20E15A-MNT's six SERCOM peripherals (each configurable as I2C/SPI/UART), wide 1.62-3.63 V supply range, and ample GPIO for relay or TRIAC drivers. The 350 ksps 12-bit ADC reads thermistor or current-sensing inputs directly, while the integrated analog comparators enable zero-crossing detection for TRIAC phase control. Industrial +105 °C rating supports attic or boiler-room installations.
おすすめ
Industrial Control Sub-Modules
The ATSAMD20E15A-MNT serves as a low-cost auxiliary processor in industrial control cabinets, handling protocol bridging (Modbus RTU over UART), local I/O expansion, and machine status indication. Its Event System enables hardware-triggered ADC sampling from timer compare outputs without CPU intervention, freeing the Cortex-M0+ for higher-level tasks. The 32-pin VQFN footprint fits compact DIN-rail enclosures, and the +105 °C temperature grade tolerates cabinet-internal heat.
おすすめ
Consumer Wearable MCUs
Wearable fitness bands, smart watches, and BLE beacons leverage the ATSAMD20E15A-MNT's 48 MHz Cortex-M0+ performance, 4 KB SRAM for sensor data buffers, and ultra-low-power standby with full RAM retention. Six SERCOM channels support simultaneous I2C connections to heart-rate sensors, SPI displays, and UART BLE modules. The 5x5 mm VQFN package fits wrist-sized form factors with minimal PCB area.
おすすめ
Smart Metering Endpoints
Smart electricity, water, and gas meters benefit from the ATSAMD20E15A-MNT's 12-bit ADC for accurate sensor readout, integrated RTC for time-stamped metering intervals, and SleepWalking mode that handles tamper detection in sub-microamp standby. The 32 KB Flash stores metering firmware with up to 12 months of buffer flash simulation. Wide 1.62-3.63 V operation tolerates battery droop across the meter's service life.
おすすめ
Low-Cost HMI Touch-Button Interfaces
Touch-button panels and slider-based HMI replacement modules use the ATSAMD20E15A-MNT's integrated PTC (Peripheral Touch Controller) on selected GPIO, providing capacitive touch sensing without external ICs. The 12-bit ADC reads up to 20 analog channels for slider/wheel position decoding, while six SERCOM channels drive I2C-controlled LED indicators or SPI-connected displays. The 32-pin VQFN keeps BOM cost low for high-volume appliance and IoT front-panel designs.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: ATSAMD20E15A-MNT — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | ATSAMD20E15A-MU | ATSAMD20E14A-MNT | ATSAMD20E16A-MNT | ATSAMC20E15A-MNT | ATSAMD20E15A-AN |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | VQFN-32 (5x5 mm) | VQFN-32 (5x5 mm) - same | VQFN-32 (5x5 mm) - same | VQFN-32 (5x5 mm) - same | VQFN-32 (5x5 mm) - same | TQFP-32 (7x7 mm) - different footprint |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Max CPU Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Flash Memory | 32 KB | 32 KB | 16 KB | 64 KB | 32 KB | 32 KB |
| SRAM | 4 KB | 4 KB | 2 KB | 8 KB | 4 KB | 4 KB |
| Operating Voltage | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 1.62 V to 3.63 V | 2.7 V to 5.5 V | 1.62 V to 3.63 V |
| Operating Temperature | -40 °C to +105 °C | -40 °C to +105 °C | -40 °C to +105 °C | -40 °C to +105 °C | -40 °C to +85 °C | -40 °C to +105 °C |
| Special Features | SleepWalking, 6x SERCOM, 12-bit ADC | Same as this product | Same, lower Flash | Same, higher Flash | Adds CAN-FD | Same as this product |
主な差別化要因
- Smallest pin-count member of SAM D20 family with full Cortex-M0+ feature set （vs ATSAMD20E18A-AU (48-pin TQFP))
- Pin-compatible upgrade/downgrade paths within SAM D20E family （vs ATSAMD20E14A-MNT (16 KB Flash))
- Drop-in alternative to SAM C20 for designs migrating to CAN-FD （vs ATSAMC20E15A-MNT)
設計ノート
The 32-pin VQFN (5x5 mm) package dissipates heat through the exposed thermal pad (pin 33 on the lead-frame, but designated EPAD). For reliable operation at 48 MHz full load, solder the EPAD to a continuous ground copper pour of at least 10 mm² (2x2 mm × 5 layers) on the top PCB layer with multiple thermal vias to inner ground planes. Without adequate EPAD soldering, junction temperature can rise 15-20 °C above ambient under sustained DMA + ADC activity.
Decouple the ATSAMD20E15A-MNT with a 100 nF X7R ceramic capacitor on each VDD pin (3 VDD pins on this package) placed within 3 mm of the respective VDD ball, plus a bulk 4.7 µF or 10 µF X5R ceramic on the main VDD rail. The VDDCORE pin (pin 30) requires a 1 µF X7R capacitor for the internal 1.2 V LDO output. Place the VDDCORE capacitor symmetrically between pin 30 and the nearest GND via. Avoid long trace inductance on the crystal pins (PA14/PA15 for 32.768 kHz RTC) - keep traces under 5 mm and guard with a ground ring.
The ATSAMD20E15A-MNT does NOT support USB despite having PA24/PA25 USB-capable pads - USB is only bonded on the D20J 64-pin variant. Engineers porting code from SAM D21E15 designs must remove all USB stack code. Watch for the BOOTPROT default fuse setting - the GPNVM bit is unlocked from factory but the BOOTPROT region size defaults to 0 KB; setting an incorrect boot protection size can lock out the SWD debugger. Always verify fuses with atprogram -t part verify before code commit.
コンプライアンス情報
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose SAM DA1 family for automotive. Halogen-free status not explicitly stated in verified data; marked unknown. Industrial temperature grade -40 to +105 °C.
