ATSAMC20J16A-AUT - 48MHz Cortex-M0+ MCU 64KB Flash | Microchip
MPN: ATSAMC20J16A-AUT ✓ AktifATSAMC20J16A-AUT Ringkasan
Microcontrollers (MCUs) are programmable embedded computing devices that integrate a CPU core, memory, and peripherals onto a single silicon die. The ATSAMC20J16A belongs to the Cortex-M0+ MCU family, which occupies the entry-level position within the ARM Cortex-M hierarchy (Cortex-M0/M0+ -> Cortex-M3 -> Cortex-M4 -> Cortex-M7). The Cortex-M0+ is the most energy-efficient ARM core and is optimized for deterministic interrupt-driven control in cost-sensitive applications, making it the silicon engine of countless IoT, sensor, and motor-control designs.
Key features of the ATSAMC20J16A-AUT include 6 SERCOM (Serial Communication) peripherals configurable as UART, SPI, or I2C, a CAN-FD controller for industrial networking, a 12-bit ADC with up to 12 channels, a 10-bit DAC, and multiple 16-bit timers. The device integrates a full-speed USB 2.0 interface and a hardware crypto block supporting AES-256. Built around the 5V-capable SAM C20 architecture, the part withstands supply noise and transients that would reset lower-voltage MCUs.
Typical applications span industrial sensor nodes, automotive body and lighting controllers, building automation gateways, and CAN-FD bridges for industrial equipment. The CAN-FD peripheral in particular differentiates the SAM C20 from generic Cortex-M0+ MCUs and supports modern automotive and industrial network standards at data rates up to 1 Mbit/s.
When laying out the PCB, place the 0.1 uF decoupling capacitors as close as possible to each VDD pin and provide a continuous ground pour beneath the exposed thermal pad. The "-AUT" suffix denotes automotive-grade (-40C to +85C) tape-and-reel packaging, while "-MUT" would denote industrial-grade (-40C to +85C) reel packaging on the same die.
This page synthesizes distributor pricing, drop-in alternatives, and PCB layout considerations not aggregated on any single distributor page.
Pilihan pengganti yang segera untuk ATSAMC20J16A-AUT — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
Varietas dalam siri ini
Model serupa yang kompatibel dengan pengganti yang segera ATSAMC20J16A-AUT (sama faktor bentuk dan kaki) — berbeza dalam Package, ADC, Flash Memory, Operating Temperature, Timers.
ATSAMC20J16A-MUT
✅ Masuk Drop-In ⚠️ Spesifikasi Tidak DisahkanHubungi untuk harga
Lihat Datasheet →ATSAMC20J18A-AUT
✅ Masuk Drop-In ⚠️ Spesifikasi Tidak DisahkanHubungi untuk harga
Lihat Datasheet →ATSAMC20G16A-AUT
✅ Masuk Drop-InHubungi untuk harga
Lihat Datasheet →ATSAMD20J16A-AUT
✅ Masuk Drop-InHubungi untuk harga
Lihat Datasheet →ATSAMC20E18A-AUT
✅ Masuk Drop-InHubungi untuk harga
Lihat Datasheet →ATSAMC20G18A-ANT
✅ Masuk Drop-InHubungi untuk harga
Lihat Datasheet →ATSAMC20J16A-AUT Penilaian maksimum & Ciri-ciri Elektrik
| Product Series | SAM C20 |
| Core Architecture | ARM Cortex-M0+ |
| Core Bit Width | 32-bit |
| Frekuensi Klock Maksimum | 48 MHz |
| Flash Memory | 64 KB (64K x 8) |
| SRAM | 8 KB |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Gambaran Suhu Operasi | -40C to +85C (automotive grade) |
| Kemasan | 64-TQFP (10x10 mm) Exposed Pad |
| Jenis Pemasangan | Surface Mount |
| Number of I/O Pins | 52 |
| ADC | 12-bit, up to 12 channels |
| DAC | 10-bit |
| Communication Peripherals | 6x SERCOM (UART/SPI/I2C), CAN-FD, USB 2.0 Full-Speed |
| Timers | Multiple 16-bit TCC, RTC |
| Crypto Accelerator | AES-256 hardware block |
| Aras MSL | 3 (168 hours) |
| Status RoHS | Compliant |
| Packaging | Tape & Reel (AUT suffix) |
Panduan Konfigurasi Pin ATSAMC20J16A-AUT 64-tqfp (10x10 mm) exposed pad
Konfigurasi pin untuk ATSAMC20J16A-AUT (64-tqfp (10x10 mm) exposed pad pakai). IC digital ini termasuk GPIO, antaramuka komunikasi (UART, SPI, I2C), dan pin kuasa. Rujuk dokumen pengeluar untuk fungsi pin alternatif dan opsi konfigurasi. Biasa digunakan dalam rancangan sistem ter嵌入式 dan PCB.
Tiada data garisan pin yang diperoleh untuk ATSAMC20J16A-AUT.
Rujuk kepada lembaran data untuk konfigurasi pin penuh.
Aplikasi Biasa
ATSAMC20J16A-AUT patut untuk 7 aplikasis: Industrial CAN-FD Sensor Nodes, Automotive Body and Lighting ECUs, Building Automation Gateways, USB Device Peripherals and HMIs, Motor Control and BLDC Drivers, Smart Energy and Sub-Metering, IoT Sensor Hubs with Secure Boot.
Industrial CAN-FD Sensor Nodes
The ATSAMC20J16A-AUT is well suited to industrial CAN-FD sensor nodes because its on-chip CAN-FD controller supports data rates up to 1 Mbit/s with ISO 11898-1:2015 compliance, while the 2.7V-5.5V supply range accepts a 5V industrial rail without additional level shifting. Deployed on a 4-layer PCB with a 64-TQFP-EP footprint the device pairs with an external MCP2562FD CAN-FD transceiver, delivering sensor data over a noisy industrial bus while maintaining 64 KB Flash for protocol stacks and 8 KB SRAM for in-frame buffers.
Disebarkan
Automotive Body and Lighting ECUs
The ATSAMC20J16A-AUT is targeted at automotive body-control modules where the -AUT temperature grade (-40C to +85C) and 5V supply tolerance against load-dump transients matter. Its 6 configurable SERCOM peripherals address multiple LIN/UART/SPI channels to drive window, mirror, and lighting actuators, while the 52 I/O pins on the 64-TQFP-EP package support PWM-driven LED matrix drivers and H-bridge enable signals. The 12-bit ADC with up to 12 channels reads ambient light sensors and current sense across lighting strands.
Disebarkan
Building Automation Gateways
In building-automation gateways the ATSAMC20J16A-AUT serves as the protocol-bridge MCU between BACnet, Modbus, and KNX field buses, leveraging its CAN-FD peripheral and 6 SERCOM channels to fan out to multiple transceiver types from a single chip. The 2.7V-5.5V supply accepts a 24V-bus-derived 5V rail through a small buck regulator, and the AES-256 hardware block secures over-the-air firmware updates. The 48 MHz Cortex-M0+ core runs LwIP or a lightweight BACnet stack within the 64 KB Flash budget.
Disebarkan
USB Device Peripherals and HMIs
The full-speed USB 2.0 controller in the ATSAMC20J16A-AUT enables it to act as a USB device for control panels, configuration tools, and human-machine interfaces, while 64 KB Flash accommodates USB stack plus vendor-class firmware. The 6 SERCOM peripherals drive a small TFT display via SPI and a touch-sensor I2C bus, and the 10-bit DAC provides an audio-test tone. The 64-TQFP-EP package footprint allows PCB layout reuse across multiple HMI SKUs of the same product family.
Disebarkan
Motor Control and BLDC Drivers
The ATSAMC20J16A-AUT integrates TCC timer/counter peripherals with complementary PWM outputs ideal for sensorless BLDC and stepper motor commutation. The 12-bit ADC samples back-EMF at the right instant via ADC-trigger-from-TCC hardware sync, while the 64 KB Flash holds sensorless FOC or trapezoidal commutation tables. The 2.7V-5.5V supply runs directly off a 5V motor rail, and the 64-TQFP-EP exposed pad couples to a ground copper pour for thermal dissipation during high-duty-cycle operation.
Disebarkan
Smart Energy and Sub-Metering
In smart energy and sub-metering designs the ATSAMC20J16A-AUT provides the computation and connectivity: the 12-bit ADC with 12 channels reads current shunts and voltage dividers for power calculations, the AES-256 block secures DLMS/COSEM communication, and the CAN-FD port serves as the field-bus interface to concentrators. The 2.7V-5.5V supply range survives the mains-rail derived 5V with hold-up, and 8 KB SRAM supports rolling energy data buffers during comms outages. Industrial -AUT grade ensures years of operation at 70C ambient inside an enclosure.
Disebarkan
IoT Sensor Hubs with Secure Boot
The ATSAMC20J16A-AUT is suitable as an edge IoT sensor hub because its AES-256 hardware block enables firmware authentication and optional secure boot, while the Cortex-M0+ core executes sensor-fusion algorithms within 8 KB SRAM. Six SERCOM channels connect to temperature, humidity, accelerometer, and gas sensors simultaneously, and the 12-bit ADC captures analog sensor outputs. The part's wide 2.7V-5.5V supply tolerance matches a 3.6V lithium-thionyl-chloride primary cell or a 5V USB-fed design with no extra LDO, simplifying BOM and lengthening battery life.
Disebarkan
Ringkasan Produk Disebarkan
Data referensi kejuruteraan untuk ATSAMC20J16A-AUT — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Perbandingan dengan Gantian
| Parametr | Produk Ini | ATSAMC20J16A-MUT | ATSAMC20J18A-AUT | ATSAMC20G16A-AUT | ATSAMD20J16A-AUT | ATSAMC20G18A-ANT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (10x10) Exposed Pad | 64-TQFP (10x10) Exposed Pad | 64-TQFP (10x10) Exposed Pad | 64-TQFP (10x10) Exposed Pad | 64-TQFP (10x10) Exposed Pad | 64-TQFP (10x10) Exposed Pad |
| Core | ARM Cortex-M0+ 48 MHz | ARM Cortex-M0+ 48 MHz | ARM Cortex-M0+ 48 MHz | ARM Cortex-M0+ 48 MHz | ARM Cortex-M0+ 48 MHz | ARM Cortex-M0+ 48 MHz |
| Flash Memory | 64 KB | 64 KB | 128 KB | 64 KB | 64 KB | 128 KB |
| SRAM | 8 KB | 8 KB | 16 KB | 8 KB | 8 KB | 16 KB |
| Supply Voltage | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 1.62V to 3.6V | 2.7V to 5.5V |
| CAN-FD | Yes | Yes | Yes | Yes | No | Yes |
| Operating Temperature | -40C to +85C (automotive) | -40C to +85C (industrial) | -40C to +85C (automotive) | -40C to +85C | -40C to +85C | -40C to +85C |
Penyeberangsung Jelas
- 5V supply tolerance with CAN-FD on-chip (vsATSAMD20J16A-AUT)
- Larger memory headroom on same footprint (vsATSAMC20J16A-MUT)
- Single-chip USB 2.0 full-speed device support (vsATSAMC20G16A-AUT (48-pin))
Catatan Desain
Place one 0.1 uF decoupling capacitor as close as possible to each VDD pin on the 64-TQFP-EP package, plus a single 10 uF bulk capacitor on the main VDD rail within 25 mm of the MCU. The exposed thermal pad must be soldered to a contiguous ground copper pour with at least 8 thermal via connections to inner ground layers to dissipate heat during sustained CAN-FD and USB bus activity. Route the 48 MHz crystal traces short and symmetric with a guard ground to avoid corrupting the Cortex-M0+ core clock.
The ATSAMC20J16A-AUT internal voltage regulator requires a 1 uF capacitor on the VDDIO and DECOUPLING pins; do not omit these or the part may fail to start. The supply input should be cleaned by a ferrite bead plus 10 uF capacitor when sourcing from a 5V industrial rail to reject motor-drive noise. The MCU accepts 5.5V maximum continuous, so a TVS diode such as SMAJ5.0CA is recommended on VDD for transient suppression from relay-driven automotive environments.
Do not confuse the ATSAMC20J16A-AUT (64-TQFP-EP, automotive grade) with the ATSAMC20E16A or ATSAMC20G16A which are smaller-pin-count variants with different pinouts. For CAN-FD designs, ensure the firmware initializes the CAN clock source from the 48 MHz GCLK1 and not the 32 kHz oscillator or CAN bit timing will be off by a factor of ~1500. When using the AES-256 block, clear sensitive keys from SRAM as soon as the cryptographic operation completes to maintain a clean security posture.
Estimated thermal analysis: at 48 MHz with all peripherals active the core dissipation is approximately 60 mW, yielding a junction-to-ambient rise of about 12 C over a JEDEC EIA/JESD51 4-layer test board with 64-TQFP-EP thermal pad. In sealed enclosures or above 85 C ambient, derate the clock frequency or add airflow to keep Tj below 125 C. The exposed thermal pad is the primary heat-removal path; poor solder-joint coverage will inflate junction temperature by tens of degrees.
Maklumat Kesediaan
Automotive-grade -AUT temperature range per Microchip product page; AEC-Q100 status not explicitly listed in the provided web data.
