ATSAMC20G15A-ANT - 48MHz Cortex-M0+ MCU, 32KB Flash, 48-TQFP | Microchip
Référence : ATSAMC20G15A-ANT ✓ Actif| Qté | Prix unitaire | 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 Présentation
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.
Alternatives de remplacement direct pour ATSAMC20G15A-ANT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ATSAMC20G15A-ANT (même facteur de forme et même empreinte) — différant par Core, I/O Pins, SRAM.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAMC20G15A-AUT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAMC20G16A-ANT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAMC20G17A-ANT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAMC20G18A-ANT
✅ Remplacement direct✓ En stock
$2.34 / unité
Voir la fiche technique →ATSAMC20G15A-ANT Valeurs maximales et caractéristiques électriques
| 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) |
| Boîtier | 48-TQFP (7x7 mm) |
| Type de montage | Surface Mount |
| Température de fonctionnement | -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 |
| Statut RoHS | Compliant (Green) |
| Carrier Type | Tape & Reel (T&R) |
Configuration des broches de ATSAMC20G15A-ANT
| Broche 1 | VDDIO — Digital I/O supply voltage |
| Broche 2 | PA02 — GPIO / ADC AIN0 |
| Broche 3 | PA03 — GPIO / ADC AIN1 / VREFA |
| Broche 4 | GND — Ground |
| Broche 5 | PA04 — GPIO / ADC AIN2 |
| Broche 6 | PA05 — GPIO / ADC AIN3 |
| Broche 7 | PA06 — GPIO / ADC AIN4 |
| Broche 8 | PA07 — GPIO / ADC AIN5 |
| Broche 9 | PA08 — GPIO / ADC AIN6 |
| Broche 10 | PA09 — GPIO / ADC AIN7 |
| Broche 11 | PA10 — GPIO / ADC AIN8 |
| Broche 12 | PA11 — GPIO / ADC AIN9 |
| Broche 13 | VDDANA — Analog supply voltage |
| Broche 14 | GNDANA — Analog ground |
| Broche 15 | PB00 — GPIO |
| Broche 16 | PB01 — GPIO |
| Broche 17 | PB02 — GPIO |
| Broche 18 | PB03 — GPIO |
| Broche 19 | PB04 — GPIO |
| Broche 20 | PB05 — GPIO |
| Broche 21 | PB06 — GPIO |
| Broche 22 | PB07 — GPIO |
| Broche 23 | PB08 — GPIO |
| Broche 24 | PB09 — GPIO |
| Broche 25 | PA12 — GPIO / SERCOM |
| Broche 26 | PA13 — GPIO / SERCOM |
| Broche 27 | PA14 — GPIO / SERCOM |
| Broche 28 | PA15 — GPIO / SERCOM |
| Broche 29 | PA16 — GPIO / SERCOM / CAN-TX |
| Broche 30 | PA17 — GPIO / SERCOM / CAN-RX |
| Broche 31 | PA18 — GPIO |
| Broche 32 | PA19 — GPIO |
| Broche 33 | PA20 — GPIO |
| Broche 34 | PA21 — GPIO |
| Broche 35 | PA22 — GPIO |
| Broche 36 | PA23 — GPIO |
| Broche 37 | PA24 — GPIO |
| Broche 38 | PA25 — GPIO |
| Broche 39 | GND — Ground |
| Broche 40 | VDD — Digital supply voltage |
| Broche 41 | PA27 — GPIO |
| Broche 42 | RESETn — Active-low reset input |
| Broche 43 | SWDIO — Serial Wire Debug I/O |
| Broche 44 | SWCLK — Serial Wire Debug clock |
| Broche 45 | PA30 — GPIO / SWO |
| Broche 46 | PA31 — GPIO |
| Broche 47 | PB10 — GPIO |
| Broche 48 | PB11 — GPIO |
Applications typiques
ATSAMC20G15A-ANT convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAMC20G15A-ANT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- 5V-tolerant I/O eliminates external level shifters (vs ATSAMC20E15A-MNT (32-QFN variant))
- Integrated CAN-FD peripheral for modern industrial buses (vs ATSAM D20 family (no CAN-FD))
- On-chip 256-channel PTC eliminates external touch ICs (vs Discrete touch controllers (e.g., AT42QT1010))
Notes de conception
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.
Informations de conformité
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.
