ATSAMDA1G15B-MBT - ARM Cortex-M0+ MCU 48MHz 32KB Flash | Microchip
Référence : ATSAMDA1G15B-MBT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $1.97 | $1,97 |
| 10 | $1.76 | $17,60 |
| 100 | $1.55 | $155,00 |
| 500 | $1.32 | $660,00 |
| 1 000 | $1.1 | $1 100,00 |
ATSAMDA1G15B-MBT Présentation
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals. The SAM DA1 family belongs to the broader ARM Cortex-M0+ class of microcontrollers, which are widely used for low-power, deterministic embedded control. Within the Microchip portfolio, SAM DA1 sits between the smaller SAMD10/D11 series and the higher-performance SAMD20/D21 family, targeting cost-sensitive functional-safety applications. The 'A' suffix in DA1 designates the AEC-Q100 automotive-grade family, and the Functional Safety (FuSa) variant adds safety documentation, FMEDA, and diagnostic libraries suited to ISO 26262 ASIL-B designs.
Key features of the ATSAMDA1G15B-MBT include the Cortex-M0+ core with single-cycle I/O access, a full-speed USB 2.0 device interface, 12-bit ADC up to 350 ksps, 10-bit DAC, multiple timers (TC, RTC), and a Peripheral Touch Controller (PTC) supporting capacitive sensing. The device also has a 12-channel event system, configurable SERCOM peripherals, and an integrated 32.768 kHz oscillator for RTC operation. DMA support through eight channels keeps CPU load low when servicing high-throughput peripherals.
Architecturally, the SAM DA1 uses a 32-bit ARMv6-M instruction set, a 2-layer AHB bus matrix, and Microchip's proprietary Atmel Start / Harmony 3 peripheral library. The QFN-48 package provides an exposed thermal pad that lowers junction-to-PCB thermal resistance, supporting higher ambient operating temperatures for automotive under-hood and industrial environments.
Typical applications include automotive body electronics (BCM, lighting, HVAC), industrial sensor hubs, smart appliances, USB HID peripherals, capacitive-touch human-machine interfaces, and functional-safety sub-systems such as sensor monitoring and actuator control in vehicle ECUs. The AEC-Q100 qualification and FuSa documentation make it especially attractive for safety-critical automotive subsystems.
When designing with this MCU, ensure decoupling is placed within 5 mm of each power pin and that the exposed pad is soldered to a continuous ground pour to achieve the datasheet thermal performance. Choose between the MBT (QFN-48) and ABT (TQFP-48) variants based on assembly process: QFN requires reflow with bottom pad soldering, while TQFP supports standard wave or reflow.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes that go beyond the manufacturer datasheet. Engineers searching for ATSAMDA1G15B-MBT specifications, pinout, datasheet PDF, AEC-Q100 grade, or SAM DA1 cross-reference will find verified parameters and drop-in replacement guidance here.
Alternatives de remplacement direct pour ATSAMDA1G15B-MBT — 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 ATSAMDA1G15B-MBT (même facteur de forme et même empreinte) — différant par Package, SERCOM Modules, Operating Temperature, ADC, Core Architecture.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAMDA1G15B-ABT
✅ Remplacement direct✓ En stock
$2.85 / unité
Voir la fiche technique →ATSAMDA1G16B-MBT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATSAMDA1E16B-ABT
✅ Remplacement direct✓ En stock
$1.82 / unité
Voir la fiche technique →ATSAMDA1G14B-MBT
✅ Remplacement direct✓ En stock
$1.78 / unité
Voir la fiche technique →ATSAMDA1G15B-MBT Valeurs maximales et caractéristiques électriques
| Core | ARM Cortex-M0+ (ARMv6-M) |
| Family | SAM DA1 (Functional Safety / AEC-Q100) |
| Maximum CPU Frequency | 48 MHz (45 DMIPS) |
| Program Flash | 32 KB (32K x 8) |
| Read-While-Write Flash | 1 KB |
| SRAM | 4 KB |
| Supply Voltage (VDDIN) | 1.62 V to 3.63 V |
| Core Mark / Architecture | 32-bit |
| SERCOM Modules | 6 (each configurable as USART / I2C / SPI) |
| ADC | 12-bit, up to 350 ksps |
| DAC | 10-bit |
| USB | Full-Speed USB 2.0 Device |
| Peripheral Touch Controller (PTC) | Supported |
| Timers | TC, TCC, RTC |
| DMA Channels | 8 |
| Boîtier | 48-QFN (7x7 mm) with exposed pad |
| Température de fonctionnement | -40 C to +85 C (industrial grade) |
| Type de montage | Surface Mount |
| Niveau MSL | MSL3 (per JEDEC J-STD-020) |
| Statut RoHS | Compliant |
Configuration des broches de ATSAMDA1G15B-MBT
| Broche 1 | VDDIN — Main supply input (1.62 V to 3.63 V) |
| Broche 2 | PA00 — GPIO / SERCOM1[0] / ADC[0] |
| Broche 3 | PA01 — GPIO / SERCOM1[1] / ADC[1] |
| Broche 4 | PA02 — GPIO / SERCOM0[0] / ADC[2] / DAC[0] |
| Broche 5 | PA03 — GPIO / SERCOM0[1] / ADC[3] / DAC[1] |
| Broche 6 | PA04 — GPIO / SERCOM0[2] / ADC[4] / VREFA |
| Broche 7 | VDDANA — Analog supply input |
| Broche 8 | GND — Ground |
| Broche 9 | PA05 — GPIO / SERCOM0[3] / ADC[5] |
| Broche 10 | PA06 — GPIO / SERCOM0[4] / ADC[6] |
| Broche 11 | PA07 — GPIO / SERCOM0[5] / ADC[7] |
| Broche 12 | PA08 — GPIO / SERCOM2[0] / ADC[8] |
| Broche 13 | PA09 — GPIO / SERCOM2[1] / ADC[9] |
| Broche 14 | PA10 — GPIO / SERCOM2[2] / ADC[10] |
| Broche 15 | PA11 — GPIO / SERCOM2[3] / ADC[11] |
| Broche 16 | PA12 — GPIO / SERCOM4[0] / PTC[X0] |
| Broche 17 | PA13 — GPIO / SERCOM4[1] / PTC[X1] |
| Broche 18 | PA14 — GPIO / SERCOM4[2] / PTC[X2] |
| Broche 19 | PA15 — GPIO / SERCOM4[3] / PTC[X3] |
| Broche 20 | PA16 — GPIO / SERCOM3[0] / PTC[X4] |
| Broche 21 | PA17 — GPIO / SERCOM3[1] / PTC[X5] |
| Broche 22 | PA18 — GPIO / SERCOM3[2] / PTC[X6] |
| Broche 23 | PA19 — GPIO / SERCOM3[3] / PTC[X7] |
| Broche 24 | PA20 — GPIO / SERCOM5[2] / PTC[Y0] |
| Broche 25 | PA21 — GPIO / SERCOM5[3] / PTC[Y1] |
| Broche 26 | PA22 — GPIO / SERCOM3[0] / PTC[Y2] |
| Broche 27 | PA23 — GPIO / SERCOM3[1] / PTC[Y3] |
| Broche 28 | PA24 — GPIO / SERCOM3[2] / USB_DM |
| Broche 29 | PA25 — GPIO / SERCOM3[3] / USB_DP |
| Broche 30 | GND — Ground |
| Broche 31 | PA26 — GPIO / SERCOM5[0] |
| Broche 32 | PA27 — GPIO / SERCOM5[1] |
| Broche 33 | PA28 — GPIO / SERCOM5[2] / RESET |
| Broche 34 | PA29 — GPIO / SERCOM5[3] |
| Broche 35 | PA30 — GPIO / SERCOM1[0] / SWCLK |
| Broche 36 | PA31 — GPIO / SERCOM1[1] / SWDIO |
| Broche 37 | PB00 — GPIO / SERCOM5[2] |
| Broche 38 | PB01 — GPIO / SERCOM5[3] |
| Broche 39 | PB02 — GPIO / SERCOM5[0] / ADC[14] |
| Broche 40 | PB03 — GPIO / SERCOM5[1] / ADC[15] |
| Broche 41 | PB04 — GPIO / SERCOM3[0] |
| Broche 42 | PB05 — GPIO / SERCOM3[1] |
| Broche 43 | PB06 — GPIO / SERCOM3[2] |
| Broche 44 | PB07 — GPIO / SERCOM3[3] |
| Broche 45 | PB08 — GPIO / SERCOM4[0] |
| Broche 46 | PB09 — GPIO / SERCOM4[1] |
| Broche 47 | PB10 — GPIO / SERCOM4[2] |
| Broche 48 | PB11 — GPIO / SERCOM4[3] |
Applications typiques
ATSAMDA1G15B-MBT convient pour 6 applications: Automotive Body Control Module (BCM), Capacitive Touch HMI (Automotive Infotainment Knobs / Industrial Panels), USB HID Peripheral (Industrial Programmers / Dongles), Industrial Sensor Hub / IoT Edge Node, Functional Safety Sensor Monitor (ISO 26262 ASIL-B), Smart Appliance Control Board (HVAC / White Goods).
Automotive Body Control Module (BCM)
The ATSAMDA1G15B-MBT fits automotive BCM designs because of its AEC-Q100 Functional Safety qualification and 48 MHz Cortex-M0+ core, which delivers deterministic interrupt response for body-electronics tasks such as lighting, wiper control, and door-lock sequencing. Its six SERCOM peripherals can each be configured as UART, SPI, or I2C, allowing the MCU to fan out to multiple LIN transceivers, LED drivers, and sensor hubs without external multiplexer ICs. The 32 KB Flash plus 1 KB RWW Flash supports EEPROM emulation for non-volatile fault logs and trim values, while the 12-bit ADC reads battery voltage and temperature sensors directly. The QFN-48 package with exposed pad enables compact PCB layouts under 25 mm x 25 mm, suitable for the distributed ECU nodes typical of modern vehicles.
Recommandé
Capacitive Touch HMI (Automotive Infotainment Knobs / Industrial Panels)
The ATSAMDA1G15B-MBT is well suited for capacitive-touch human-machine interfaces because of its on-chip Peripheral Touch Controller (PTC), which supports mutual-capacitance and self-capacitance touch sensing without an external touch IC. The PTC offloads scan timing from the CPU, allowing the Cortex-M0+ to handle debouncing, gesture recognition, and host-side communication in parallel. Combined with the 12-bit ADC for backlight brightness control and the six SERCOM ports for SPI display and I2C LED drivers, this MCU can implement a complete 12-key touch panel plus rotary encoder in a single chip. AEC-Q100 qualification allows the same hardware to be reused across consumer and automotive product lines, reducing BOM and qualification cost.
Recommandé
USB HID Peripheral (Industrial Programmers / Dongles)
The ATSAMDA1G15B-MBT's integrated Full-Speed USB 2.0 device interface and 32 KB Flash make it a strong fit for USB Human Interface Device (HID) class peripherals such as industrial programmers, configuration dongles, and diagnostics interfaces. The Cortex-M0+ core at 48 MHz can sustain 12 Mbps USB traffic with negligible CPU load thanks to the eight DMA channels that service the USB endpoint buffers autonomously. The 1 KB RWW Flash provides dedicated non-volatile storage for device descriptors and licensing keys that can be updated in the field without disrupting USB enumeration. Combined with AEC-Q100 qualification, the same firmware image can ship across industrial and automotive diagnostic SKUs.
Recommandé
Industrial Sensor Hub / IoT Edge Node
The ATSAMDA1G15B-MBT works well in industrial sensor hubs that aggregate Modbus, 4-20 mA, and I2C sensor data into a single gateway. Six SERCOM ports can be split between RS-485 UARTs, I2C sensor clusters, and SPI ADC channels, while the 12-bit ADC with up to 350 ksps can directly sample analog front-end signals. The 4 KB SRAM is sufficient to buffer ~1000 samples of 16-bit data before transmitting, and the SERCOM-based SPI can drive an external Ethernet or wireless transceiver such as the W5500 or RN4871. The 1.62 V to 3.63 V supply range supports direct connection to battery stacks, making it suitable for solar-powered remote sensor installations.
Recommandé
Functional Safety Sensor Monitor (ISO 26262 ASIL-B)
The ATSAMDA1G15B-MBT is explicitly designed for ISO 26262 ASIL-B sensor monitoring subsystems, where it pairs with a higher-performance host MCU to validate sensor health and report faults over CAN or LIN. The on-chip ADC, comparators, and self-test routines supported by the FuSa documentation enable BIST (built-in self-test) of analog signal chains at boot and runtime. The Cortex-M0+ deterministic interrupt latency ensures watchdog timer servicing meets ASIL-B timing constraints, and the 1 KB RWW Flash stores diagnostic trouble codes (DTCs) without interrupting the main application. AEC-Q100 plus FuSa collateral means automotive Tier-1s can integrate this MCU into safety cases with reduced documentation overhead.
Recommandé
Smart Appliance Control Board (HVAC / White Goods)
The ATSAMDA1G15B-MBT is well suited for HVAC and white-goods control boards that demand a balance of cost, deterministic control, and reliability. Its six SERCOM ports can interface to triac drivers, zero-cross detectors, and rotary encoder feedback loops, while the RTC with 32.768 kHz crystal support enables accurate scheduling for wash cycles and thermostat programs. The Peripheral Touch Controller replaces discrete capacitive-touch ICs on user panels, reducing BOM cost by ~$0.50 per board. The 1.62 V minimum supply allows operation directly from a 2-cell alkaline or single-cell Li-ion source without a boost converter, simplifying the power tree in battery-backed appliances.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAMDA1G15B-MBT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATSAMDA1G15B-ABT | ATSAMDA1G16B-MBT | ATSAMDA1E16B-ABT | ATSAMDA1G14B-MBT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-QFN (7x7) | TQFP-48 | 48-QFN (7x7) | TQFP-48 | 48-QFN (7x7) |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Maximum CPU Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Flash | 32 KB | 32 KB | 64 KB | 64 KB | 16 KB |
| SRAM | 4 KB | 4 KB | 8 KB | 8 KB | 2 KB |
| RWW Flash | 1 KB | 1 KB | 2 KB | 2 KB | 1 KB |
| AEC-Q100 / FuSa | Yes (ASIL-B) | Yes (ASIL-B) | Yes (ASIL-B) | Yes (ASIL-B) | Yes (ASIL-B) |
| Supply 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 |
Principaux différenciateurs
- Functional Safety (FuSa) collateral targeting ISO 26262 ASIL-B out of the box (vs ATSAMD21G15B-MUT)
- Six independent SERCOM peripherals, each configurable as USART / I2C / SPI (vs ATSAMDA1G14B-MBT)
- Integrated Peripheral Touch Controller (PTC) eliminates external touch IC (vs PIC16F877A-I/P)
Notes de conception
Solder the central exposed pad of the QFN-48 to a continuous ground pour with at least 8 thermal vias (0.3 mm drill, 0.6 mm pitch) to achieve the datasheet thermal resistance and avoid junction-temperature rise. Place a 100 nF decoupling capacitor within 5 mm of every VDD pin and a single 4.7 uF bulk capacitor near the VDDIN pin. The USB DP/DM traces (pins 28/29) must be length-matched to within 2 mm and routed with 45-degree bends only - per Microchip's USB design guide.
Power the VDDANA pin from the same 3.3 V LDO as VDDIN but with a ferrite bead or 10 ohm resistor to isolate ADC reference noise. The DAC and ADC share the analog supply, so noisy digital loads on VDDIN should not share a trace with VDDANA. Estimated: at 48 MHz and full peripheral activity, total IDD is approximately 8 mA, leaving margin for the internal 8 MHz oscillator and ADC sample-and-hold.
Do not leave the SWDIO/SWCLK pins floating during normal operation - they must be pulled to defined logic levels through 100 kohm resistors to prevent unintended debug-entry on noise events. The NRESET pin (pin 33) requires an external 10 kohm pull-up and a 100 nF capacitor for noise filtering, even when the internal pull-up is enabled in firmware. For AEC-Q100 designs, validate brown-out detector (BOD) thresholds against the actual battery cold-cranking profile.
Keep SERCOM traces short (under 50 mm) and route them away from switching power and PTC sense lines to avoid coupling capacitive-touch noise into the digital comm channels. The PTC X/Y lines should be guarded by a ground pour on both sides to prevent crosstalk, and the shield layer underneath the touch sensor must be a hatched ground, not a solid pour, to balance sensitivity vs. parasitic capacitance.
Informations de conformité
AEC-Q100 qualified per Microchip SAM DA1 family datasheet; Functional Safety documentation supports ISO 26262 ASIL-B. RoHS and REACH compliance per Microchip product page; halogen-free per industry-standard QFN-48 leadframe process.
