ATSAMD20E15A-AN - 32KB Flash ARM Cortex-M0+ MCU | Microchip
MPN: ATSAMD20E15A-AN ✓ AktifATSAMD20E15A-AN Ringkasan
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O on one die. The ARM Cortex-M0+ is the smallest and most energy-efficient member of the ARM Cortex-M processor family, designed for embedded applications where deterministic real-time response and ultra-low power consumption are required. The SAM D20 sits in the hierarchy as: Cortex-M0+ core -> ARM Cortex-M family -> 32-bit RISC microcontroller -> embedded processor -> semiconductor IC, making it ideal for cost-sensitive yet feature-rich IoT and consumer designs.
Key differentiating features include the SERCOM (Serial Communication Interface) modules that can be independently configured as UART, SPI, or I2C, plus a hardware Peripheral Touch Controller for capacitive touch buttons and sliders without external components. The 12-bit ADC delivers up to 350ksps with internal voltage reference, while the 10-bit DAC supports waveform generation. Multiple Sleep modes (Idle, Standby, Backup) and a dedicated RTC with calendar mode achieve sleep currents below 5 microamps.
Typical applications span home automation endpoints (smart thermostats, sensor hubs), consumer electronics (wearable accessories, toys), metering (energy and water monitors), and industrial controls (HMI panels, low-end PLCs). The wide 1.62V to 3.63V operating range and AEC-Q100 qualified variants simplify designs that target both battery-powered and 24V industrial bus environments.
When designing with the ATSAMD20E15A-AN, ensure the on-chip voltage regulator's bulk capacitor meets Microchip's reference design (typically 1uF X7R). Decoupling capacitors should be placed within 2mm of each supply pin, and unused SERCOM pads can be repurposed as GPIO. Programming is supported via Atmel-ICE or Curiosity Nano boards through the SWD interface.
Alternatif penggantian untuk ATSAMD20E15A-AN — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian ATSAMD20E15A-AN (sama faktor bentuk dan footprint) — berbeda di dalam ADC, Package, Operating Temperature, MSL Level, SERCOM Modules.
ATSAMD20E14A-AN
✅ Drop-InKontak untuk harga
Lihat Datasheet →ATSAMD20E14B-AUT
✅ Drop-InKontak untuk harga
Lihat Datasheet →ATSAMD20E14B-AU
✅ Drop-InKontak untuk harga
Lihat Datasheet →ATSAMD20E14B-MUT
✅ Drop-InKontak untuk harga
Lihat Datasheet →ATSAMD10D14A-SSNT
✅ Drop-InKontak untuk harga
Lihat Datasheet →ATSAMD11D14A-MNT
✅ Drop-InKontak untuk harga
Lihat Datasheet →ATSAMD20E15A-AN Rating Maksimal & Karakteristik Listrik
| Core Architecture | ARM Cortex-M0+ (32-bit) |
| Frekuensi Bawah Maximum | 48 MHz |
| Flash Memory | 32 KB |
| SRAM | 4 KB |
| Supply Voltage Range | 1.62 V to 3.63 V |
| Suhu Kerja | -40 C to +105 C |
| CoreMark Performance | 2.14 CoreMark/MHz |
| ADC Resolution | 12-bit |
| DAC Resolution | 10-bit |
| Peripheral Touch Controller | 256 channels |
| SERCOM Modules | 6 (configurable UART/SPI/I2C) |
| Paket | 32-pin TQFP |
| Tipe Mounting | Surface Mount |
| Status RoHS | Compliant |
| Lead Free | Yes |
Konfigurasi Pin ATSAMD20E15A-AN
| Pin produk 1 | PA00 — GPIO/SERCOM1[0]/ADC[0] |
| Pin produk 2 | PA01 — GPIO/SERCOM1[1]/ADC[1] |
| Pin produk 3 | PA02 — GPIO/SERCOM0[0]/ADC[2] |
| Pin produk 4 | VDD — Digital supply voltage |
| Pin produk 5 | GND — Ground |
| Pin produk 6 | PA03 — GPIO/SERCOM0[1]/ADC[3]/VREFA |
| Pin produk 7 | PA04 — GPIO/SERCOM0[2]/ADC[4] |
| Pin produk 8 | PA05 — GPIO/SERCOM0[3]/ADC[5] |
| Pin produk 9 | PA06 — GPIO/SERCOM2[0]/ADC[6] |
| Pin produk 10 | PA07 — GPIO/SERCOM2[1]/ADC[7] |
| Pin produk 11 | PA08 — GPIO/SERCOM2[2]/ADC[8]/NMI |
| Pin produk 12 | PA09 — GPIO/SERCOM2[3]/ADC[9] |
| Pin produk 13 | PA10 — GPIO/SERCOM0[2]/ADC[10] |
| Pin produk 14 | PA11 — GPIO/SERCOM0[3]/ADC[11] |
| Pin produk 15 | PA14 — GPIO/SERCOM2[2]/XIN |
| Pin produk 16 | PA15 — GPIO/SERCOM2[3]/XOUT |
| Pin produk 17 | PA16 — GPIO/SERCOM1[0]/PTC[X0] |
| Pin produk 18 | PA17 — GPIO/SERCOM1[1]/PTC[X1] |
| Pin produk 19 | PA18 — GPIO/SERCOM1[2]/PTC[X2] |
| Pin produk 20 | PA19 — GPIO/SERCOM1[3]/PTC[X3] |
| Pin produk 21 | PA20 — GPIO/SERCOM5[2]/PTC[X4] |
| Pin produk 22 | PA21 — GPIO/SERCOM5[3]/PTC[X5] |
| Pin produk 23 | PA22 — GPIO/SERCOM3[0]/PTC[X6] |
| Pin produk 24 | PA23 — GPIO/SERCOM3[1]/PTC[X7] |
| Pin produk 25 | PA24 — GPIO/SERCOM3[2]/PTC[Y0] |
| Pin produk 26 | PA25 — GPIO/SERCOM3[3]/PTC[Y1] |
| Pin produk 27 | PA27 — GPIO/SERCOM5[3]/PTC[Y2] |
| Pin produk 28 | PA28 — GPIO/SERCOM5[2]/PTC[Y3]/RESET |
| Pin produk 29 | VDD — Digital supply voltage |
| Pin produk 30 | GND — Ground |
| Pin produk 31 | SWDIO — Serial Wire Debug I/O (PA31) |
| Pin produk 32 | SWCLK — Serial Wire Debug Clock (PA30) |
Aplikasi Umum
ATSAMD20E15A-AN cocok untuk 6 aplikasis: Home Automation Hubs, Consumer Wearables, Smart Energy Metering, Industrial Sensor Transmitters, Capacitive Touch User Interfaces, Battery-Powered IoT Edge Nodes.
Home Automation Hubs
The ATSAMD20E15A-AN is well suited for home automation endpoints such as smart thermostats, sensor hubs, and lighting controllers. Its 32-bit Cortex-M0+ at 48MHz executes Zigbee or Matter stack callbacks efficiently, while the 12-bit ADC with 350ksps supports temperature, humidity, and ambient light sensing through the 16 available analog channels. The six SERCOM modules configure flexibly as UART, SPI, or I2C, allowing simultaneous connection to sensors, wireless modules, and a local display. Low-power Backup mode with RTC running draws under 5 microamps, making battery-powered sensor nodes viable for multi-year deployments on two AA cells.
Direkomendasikan
Consumer Wearables
Wearable bands and fitness trackers benefit from the ATSAMD20E15A-AN's combination of a Cortex-M0+ core, 256-channel Peripheral Touch Controller (PTC) for capacitive UI buttons, and 10-bit DAC for haptic feedback waveforms. At 48MHz the device delivers 2.14 CoreMark/MHz, enough to drive simple BLE link layer control and sensor fusion math. The 32KB Flash holds BLE stack plus application logic, while 4KB SRAM supports sensor buffering. Standby current below 5uA with RTC wakeup enables always-on step counting without daily charging.
Direkomendasikan
Smart Energy Metering
In single-phase electricity meters and gas/water flow monitors, the ATSAMD20E15A-AN serves as the metrology MCU. The 12-bit ADC with 350ksps captures load current and voltage with sufficient resolution for class 1 accuracy metering, while the RTC with calendar mode handles time-of-use tariffs and tampering logging. The 32KB Flash supports DLMS/COSEM or IEC 62056 application code with secure firmware update via the on-chip NVMCTRL bootloader. Wide 1.62V to 3.63V supply tolerance allows direct battery backup or supercapacitor support during line outages.
Direkomendasikan
Industrial Sensor Transmitters
Industrial 4-20mA loop-powered sensor transmitters and HMI panels use the ATSAMD20E15A-AN for signal conditioning and bus interfacing. The device's 1.62V to 3.63V range accepts common 3.3V and 5V-derived rails, and the 32-pin TQFP footprint supports standard industrial PCB layouts. The 12-bit ADC reads bridge pressure sensors or RTD-conditioned temperatures, while SERCOM modules drive RS-485 transceivers for Modbus RTU. AEC-Q100 qualified variants (ATSAMD20E15A-AUT) extend deployment to factory floor environments with extended -40C to +125C operation.
Direkomendasikan
Capacitive Touch User Interfaces
The ATSAMD20E15A-AN's integrated 256-channel Peripheral Touch Controller (PTC) supports both self-capacitance and mutual-capacitance electrode patterns, enabling capacitive touch buttons, sliders, and wheels on appliances and consumer electronics without external touch ICs. Combined with the 32KB Flash for advanced UI firmware and the six SERCOM interfaces for display driving, the MCU replaces traditional mechanical keypads with waterproof glass-front designs. The 10-bit DAC generates analog feedback tones or piezo buzzer waveforms for user confirmation beeps.
Direkomendasikan
Battery-Powered IoT Edge Nodes
Battery-powered IoT edge devices such as remote environmental monitors, asset trackers, and agricultural sensors rely on the ATSAMD20E15A-AN's multiple low-power modes. The Idle mode at 0.8mA/MHz keeps the core ready for sensor reads, Standby mode retains SRAM at 1.5uA, and Backup mode with RTC running drops to sub-5uA. The 12-bit ADC wakes the device on threshold-crossing events, while SERCOM-based I2C/SPI interfaces connect to environmental sensors and LoRa or sub-GHz radio modules for years-long battery life on a single lithium primary cell.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk ATSAMD20E15A-AN — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | ATSAMD20E14A-AN | ATSAMD20E14B-AUT | ATSAMD20E14B-AU | ATSAMD20E14B-MUT |
|---|---|---|---|---|---|
| Package | 32-pin TQFP | 32-pin TQFP - same | 32-pin TQFP - same | 32-pin TQFP - same | 32-pin TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Maximum Clock | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Flash | 32 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| SRAM | 4 KB | 4 KB | 4 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 | 1.62 V to 3.63 V |
| Operating Temperature | -40 C to +105 C | -40 C to +105 C | -40 C to +125 C (AEC-Q100) | -40 C to +105 C | -40 C to +125 C (AEC-Q100) |
Diferensiator Kunci
- Highest Flash density in 32-pin TQFP SAMD20 family (vsATSAMD20E14A-AN)
- B-silicon revision includes errata fixes (vsATSAMD20E14B-AUT)
- Industrial temperature grade with full 48MHz operation (vsATSAMD20E14B-AUT (AEC-Q100))
Catatan Desain
Place a 1uF X7R ceramic capacitor within 2mm of the VDD pin and a 10nF decoupling cap on each VDDIO supply pin. The on-chip LDO requires a minimum bulk capacitance of 1uF per the SAM D20 datasheet; lower values can cause core instability at 48MHz operation. Add bulk capacitance (4.7uF) at the board entry point to suppress transient voltage drops during SERCOM radio bursts.
The 32-pin TQFP requires 0.8mm pitch pads with 0.3mm signal traces escaped between pins. Route SWDIO and SWCLK with 50-ohm characteristic impedance and place test points for in-circuit programming access. The exposed pad (EP) on TQFP is the die substrate and should be soldered to a grounded copper pour for thermal dissipation and electrical reference.
Do not leave the RESET pin floating; tie PA28/RESET to VDD through a 10kohm pull-up and add a 1nF capacitor to ground for debouncing. Avoid configuring the XIN/XOUT pins as GPIO unless the external crystal is removed, as stray capacitance can prevent oscillator startup. When migrating from ATSAMD20E15A-AU (tray) to ATSAMD20E15A-ANT (tape and reel), verify the reel orientation matches pick-and-place feeders.
Informasi Konformitas
RoHS and REACH compliant per Microchip product environmental certification. The ATSAMD20E15A-AN is industrial grade -40C to +105C; for AEC-Q100 qualified parts select ATSAMD20E15A-AUT or ATSAMD20E14B-MUT variants.
