ATSAMC20G15A-ANT - 48MHz Cortex-M0+ MCU, 32KB Flash, 48-TQFP | Microchip
N.º de pieza: ATSAMC20G15A-ANT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $1.75 | $1,75 |
| 10 | $1.58 | $15,80 |
| 100 | $1.35 | $135,00 |
| 500 | $1.18 | $590,00 |
| 1.000 | $1.05 | $1.050,00 |
| 3.000 | $0.95 | $2.850,00 |
ATSAMC20G15A-ANT Descripción general
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (SRAM), and a rich set of on-chip peripherals such as timers, communication controllers, ADC/DAC, and GPIO. The SAM C20 family is part of the broader Microchip/Microcontroller hierarchy: ARM Cortex-M0+ core -> 32-bit MCU -> SAM C20 family -> industrial-grade 5V MCU with CAN-FD. This 5V-tolerant positioning differentiates SAM C20 from typical 3.3V Cortex-M0+ devices, making it well suited for noisy industrial environments, automotive body modules, and home appliances where 5V signaling is still common.
Key differentiating features of the ATSAMC20G15A-ANT include 32 KB Flash and 4 KB SRAM, a 12-bit differential ADC with hardware oversampling supporting 13/14/15/16-bit effective resolution, two analog comparators with window mode, an integrated temperature sensor, a 256-channel Peripheral Touch Controller (PTC) for capacitive touch and proximity sensing, and CAN-FD peripheral support. The device operates across an extended temperature range suitable for industrial deployments and supports up to 38 programmable I/O pins. Per the Microchip SAM C20 datasheet, this MCU is pin-compatible with select SAM D20 and SAM D21 devices, easing migration within the Microchip portfolio.
Typical applications for the ATSAMC20G15A-ANT include industrial sensor nodes, building automation controllers, automotive body and HVAC modules, household appliances with capacitive touch UI, low-end CAN nodes, and white-goods motor control interfaces. Its combination of 5V tolerance, CAN-FD, and integrated touch hardware targets designers who need to interface to legacy 5V industrial buses without external level shifters.
When designing with this device, pay close attention to the 48-pin TQFP PCB footprint, ensure adequate decoupling near VDD pins, and plan CAN bus termination per ISO 11898. The integrated PTC requires careful PCB layout for reliable capacitive touch performance. The 32 KB Flash constraint means code should be optimized for size using the Atmel START / MPLAB X toolchain.
This page synthesizes distributor pricing, drop-in alternatives within the same 48-TQFP footprint, and practical design notes that go beyond the manufacturer datasheet to help engineers shorten their BOM and qualification cycle.
Alternativas directas para ATSAMC20G15A-ANT — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con ATSAMC20G15A-ANT (mismo factor de forma y huella) — difiere en Core, I/O Pins, SRAM.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ATSAMC20G15A-AUT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ATSAMC20G16A-ANT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ATSAMC20G17A-ANT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ATSAMC20G18A-ANT
✅ Sustitución directa✓ En stock
$2.34 / unidad
Ver hoja de datos →ATSAMC20G15A-ANT Valores máximos y características eléctricas
| Core | ARM Cortex-M0+ (32-bit) |
| Series | SAM C20 |
| Maximum CPU Clock | 48 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| SRAM | 4 KB |
| Operating Voltage | 2.7V to 5.5V (5V tolerant) |
| Encapsulado | 48-TQFP (7x7 mm) |
| Tipo de montaje | Surface Mount |
| Temperatura de funcionamiento | -40C to +105C |
| I/O Pins | Up to 38 programmable |
| ADC | 12-bit, with 13/14/15/16-bit oversampling |
| Analog Comparators | 2 with window compare function |
| Temperature Sensor | Integrated |
| Touch Controller (PTC) | 256-channel capacitive touch/proximity |
| Communication | CAN-FD, SERCOM (UART/SPI/I2C), I2S |
| Estado RoHS | Compliant (Green) |
| Carrier Type | Tape & Reel (T&R) |
Configuración de pines de ATSAMC20G15A-ANT
| Pin 1 | VDDIO — Digital I/O supply voltage |
| Pin 2 | PA02 — GPIO / ADC AIN0 |
| Pin 3 | PA03 — GPIO / ADC AIN1 / VREFA |
| Pin 4 | GND — Ground |
| Pin 5 | PA04 — GPIO / ADC AIN2 |
| Pin 6 | PA05 — GPIO / ADC AIN3 |
| Pin 7 | PA06 — GPIO / ADC AIN4 |
| Pin 8 | PA07 — GPIO / ADC AIN5 |
| Pin 9 | PA08 — GPIO / ADC AIN6 |
| Pin 10 | PA09 — GPIO / ADC AIN7 |
| Pin 11 | PA10 — GPIO / ADC AIN8 |
| Pin 12 | PA11 — GPIO / ADC AIN9 |
| Pin 13 | VDDANA — Analog supply voltage |
| Pin 14 | GNDANA — Analog ground |
| Pin 15 | PB00 — GPIO |
| Pin 16 | PB01 — GPIO |
| Pin 17 | PB02 — GPIO |
| Pin 18 | PB03 — GPIO |
| Pin 19 | PB04 — GPIO |
| Pin 20 | PB05 — GPIO |
| Pin 21 | PB06 — GPIO |
| Pin 22 | PB07 — GPIO |
| Pin 23 | PB08 — GPIO |
| Pin 24 | PB09 — GPIO |
| Pin 25 | PA12 — GPIO / SERCOM |
| Pin 26 | PA13 — GPIO / SERCOM |
| Pin 27 | PA14 — GPIO / SERCOM |
| Pin 28 | PA15 — GPIO / SERCOM |
| Pin 29 | PA16 — GPIO / SERCOM / CAN-TX |
| Pin 30 | PA17 — GPIO / SERCOM / CAN-RX |
| Pin 31 | PA18 — GPIO |
| Pin 32 | PA19 — GPIO |
| Pin 33 | PA20 — GPIO |
| Pin 34 | PA21 — GPIO |
| Pin 35 | PA22 — GPIO |
| Pin 36 | PA23 — GPIO |
| Pin 37 | PA24 — GPIO |
| Pin 38 | PA25 — GPIO |
| Pin 39 | GND — Ground |
| Pin 40 | VDD — Digital supply voltage |
| Pin 41 | PA27 — GPIO |
| Pin 42 | RESETn — Active-low reset input |
| Pin 43 | SWDIO — Serial Wire Debug I/O |
| Pin 44 | SWCLK — Serial Wire Debug clock |
| Pin 45 | PA30 — GPIO / SWO |
| Pin 46 | PA31 — GPIO |
| Pin 47 | PB10 — GPIO |
| Pin 48 | PB11 — GPIO |
Aplicaciones típicas
ATSAMC20G15A-ANT es adecuado para 6 aplicacións: Industrial CAN-FD Sensor Node, Automotive Body Control Module, Home Appliance with Capacitive Touch UI, Building Automation Controller, Portable Medical Monitoring Device, Smart Sensor / IoT Edge Node.
Industrial CAN-FD Sensor Node
The ATSAMC20G15A-ANT fits industrial CAN-FD sensor nodes because its 5V-tolerant I/O (2.7V-5.5V) interfaces directly to legacy 5V industrial sensors without external level shifters, reducing BOM cost. Its CAN-FD peripheral supports the ISO 11898-1:2015 flexible data-rate protocol at up to 5 Mbps in the data phase, while remaining compatible with classic CAN 2.0B frames. The 48 MHz Cortex-M0+ core provides sufficient headroom for sensor linearization, filtering, and CANopen or J1939 protocol stacks within the 32 KB Flash budget. In a typical node, the MCU sits between a 5V sensor array and the CAN bus transceiver, providing ADC acquisition, local diagnostics, and CAN-FD message handling.
Recomendado
Automotive Body Control Module
The ATSAMC20G15A-ANT is well suited for body and HVAC body-control modules thanks to its -40C to +105C operating temperature range, CAN-FD support, and 5V I/O tolerance for legacy body electronics. Engineers typically route body-control messages such as lighting, mirror, and seat-position commands through the MCU's CAN-FD peripheral, while GPIOs drive low-side switches and read switch inputs. The integrated 12-bit ADC with 16-bit oversampling supports precise thermistor and potentiometer readings for HVAC blend doors. With 32 KB Flash and 4 KB SRAM, the part fits medium-feature modules; the G16/G17/G18 family members provide migration paths when feature counts grow.
Recomendado
Home Appliance with Capacitive Touch UI
The integrated Peripheral Touch Controller (PTC) with up to 256 channels makes the ATSAMC20G15A-ANT a strong choice for home appliances with capacitive touch user interfaces such as cooktops, washing machines, and ovens. The PTC offloads capacitive-touch acquisition from the CPU, enabling low-power wake-on-touch designs that meet ENERGY STAR standby budgets. Combined with the 5V-tolerant I/O, the MCU can directly drive LED indicators and read resistive sensors through the 12-bit ADC. Its 48 MHz core is ample for HMI state machines and BLE command forwarding through a SERCOM-attached module.
Recomendado
Building Automation Controller
Building automation systems benefit from the ATSAMC20G15A-ANT's mix of CAN-FD, SERCOM (UART/SPI/I2C), and 5V-tolerant I/O for interfacing to legacy building-automation buses such as BACnet MS/TP or Modbus RTU over RS-485. The MCU's hardware 12-bit ADC with 16-bit oversampling enables precise temperature, humidity, and CO2 sensor reads, while the integrated temperature sensor provides local die-temperature monitoring for thermal-compensation algorithms. Up to 38 programmable I/O pins allow direct control of relays, TRIACs, and 0-10V lighting dimmers. The 32 KB Flash is sufficient for typical BAS firmware stacks with light graphics.
Recomendado
Portable Medical Monitoring Device
Portable medical and wellness devices such as glucose meters, pulse oximeters, and patient-worn monitors can leverage the ATSAMC20G15A-ANT's low-power operation, integrated temperature sensor, and high-resolution ADC. The 12-bit ADC with hardware oversampling up to 16-bit effective resolution captures low-amplitude biosignals with minimal CPU intervention, while the Cortex-M0+ runs at low MHz when idle to extend battery life. The integrated PTC supports touch-button interfaces with sealed overlays for IP-rated medical enclosures. Note that this part is not FDA-qualified and is suited for non-critical wellness monitoring only.
Recomendado
Smart Sensor / IoT Edge Node
IoT edge nodes benefit from the ATSAMC20G15A-ANT's combination of CAN-FD for fieldbus connectivity, SERCOM for Wi-Fi/BLE module interfacing, and 5V-tolerant GPIO for legacy sensor interfaces. A typical architecture uses the MCU as the local supervisor: ADC reads sensors, PTC handles user inputs, and a connected module (e.g. ATBTLC1000 BLE or ATWINC1500 Wi-Fi) handles wireless uplink via UART or SPI. The 32 KB Flash is well-matched to lightweight MQTT-SN or CoAP client implementations, and the part's -40C to +105C range suits outdoor enclosures.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ATSAMC20G15A-ANT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | ATSAMC20G15A-AUT | ATSAMC20G16A-ANT | ATSAMC20G17A-ANT | ATSAMC20G18A-ANT |
|---|---|---|---|---|---|
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Clock | Cortex-M0+ @ 48 MHz | Cortex-M0+ @ 48 MHz | Cortex-M0+ @ 48 MHz | Cortex-M0+ @ 48 MHz | Cortex-M0+ @ 48 MHz |
| Flash | 32 KB | 32 KB | 64 KB | 128 KB | 256 KB |
| SRAM | 4 KB | 4 KB | 8 KB | 16 KB | 32 KB |
| CAN-FD | Yes | Yes | Yes | Yes | Yes |
| Operating Voltage | 2.7V - 5.5V | 2.7V - 5.5V | 2.7V - 5.5V | 2.7V - 5.5V | 2.7V - 5.5V |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C |
| Carrier Type | Tape & Reel | Tray | Tape & Reel | Tape & Reel | Tape & Reel |
Diferenciadores clave
- 5V-tolerant I/O eliminates external level shifters (frente a ATSAMC20E15A-MNT (32-QFN variant))
- Integrated CAN-FD peripheral for modern industrial buses (frente a ATSAM D20 family (no CAN-FD))
- On-chip 256-channel PTC eliminates external touch ICs (frente a Discrete touch controllers (e.g., AT42QT1010))
Notas de diseño
Place one 100 nF X7R decoupling capacitor on each VDD and VDDIO pin, plus one 10 uF bulk capacitor on the main VDD rail within 10 mm of the MCU. The VDDANA pin requires its own 100 nF decoupling cap to keep ADC noise low. Although the SAM C20 supports 2.7V-5.5V, avoid noise injection from switching regulators by adding a ferrite bead between the digital and analog supply rails when ADC performance matters.
For PTC capacitive touch performance, route the sense traces as short and balanced as possible, with ground hatching beneath and around the sensors, and a minimum 0.5 mm trace-to-trace spacing. Use a solid ground plane under the MCU but avoid ground flooding directly under the touch electrodes. Keep VDDANA and its decoupling cap as close to the analog pins as possible to minimize ADC reference noise.
Do not exceed 5.5V on any I/O or supply pin - although the SAM C20 is 5V-tolerant, transient spikes above 5.5V can latch-up the part. Add a TVS diode on CAN bus lines (per ISO 7637-2 for automotive) and on exposed connector pins. The 32 KB Flash budget is tight; use the XC32 compiler's -Os optimization and check the map file to ensure the application fits with room for a bootloader if OTA updates are planned.
Estimated: At 48 MHz with all peripherals active at 5.0V VDD, the SAM C20 core draws roughly 8 mA active and 5 uA in standby. Total power dissipation in a typical 48-TQFP is well under 100 mW, and the 7x7 mm TQFP package with a small copper pour provides adequate thermal headroom for industrial -40C to +105C operation without explicit heatsinking.
Información de cumplimiento
RoHS/REACH compliant per Microchip 'Green' part designation. Not AEC-Q100 qualified - for safety-critical automotive, consider ATSAMx automotive-grade variants. Lead-free reflow up to 260C per JEDEC J-STD-020.
