ATSAMD21G17L-MFT - 128KB Flash Cortex-M0+ MCU, 48MHz, QFN-48 | Microchip
Teilenummer: ATSAMD21G17L-MFT ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $4.85 | $4,85 |
| 10 | $4.36 | $43,60 |
| 100 | $3.78 | $378,00 |
| 500 | $3.31 | $1.655,00 |
| 1.000 | $2.92 | $2.920,00 |
ATSAMD21G17L-MFT Übersicht
Key specifications include 1.62V to 3.63V operating voltage, 6 SERCOM interfaces (each configurable as I2C/SPI/UART), a 12-bit ADC with up to 1 MSPS sampling, two I2S interfaces, and a hardware cryptographic engine on selected variants. The device supports SleepWalking peripherals and Event System for low-power operation without CPU intervention, drawing as little as in deep-sleep modes. AEC-Q100 Grade 1 qualification supports operation from -40C to +125C ambient, suitable for under-hood automotive electronics.
The ATSAMD21G17L-MFT leverages the SAM D21 architecture featuring the Cortex-M0+ core with single-cycle I/O access, deterministic interrupt handling via the Nested Vectored Interrupt Controller (NVIC), and Microchip's Atmel Start / MPLAB X ecosystem for code generation. The device includes a 32-bit Real-Time Counter with calendar mode, supply voltage scaling, brown-out detection, and a Watchdog Timer with window mode for safety-critical applications.
Typical applications include LED lighting controllers (the L-suffix designates lighting-optimized firmware and peripherals), automotive body electronics, BLDC motor control, IoT edge nodes, and industrial sensor hubs. The integrated USB 2.0 Full-Speed device port enables HID-class peripherals, CDC virtual COM ports, and vendor-class devices without an external PHY. The QFN-48 package footprint is shared across the SAM D21G family, simplifying PCB migration between memory-density variants.
When designing with this part, observe the recommended decoupling scheme: one 100 nF X7R capacitor per VDD pin plus a bulk 4.7 uF tantalum or ceramic capacitor. The exposed thermal pad (EP) must be soldered to a continuous ground plane for thermal dissipation and to meet the package's electrical ground reference. Programming is supported through SWD (Serial Wire Debug) on the SWDIO/SWDCLK pins, and the device is firmware-compatible with the broader ATSAMD21 family.
This page synthesizes distributor pricing, AEC-Q100 cross-references, and SAM D21 design notes not found in the standalone manufacturer datasheet.
Drop-in-Alternativen für ATSAMD21G17L-MFT – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit ATSAMD21G17L-MFT (gleiche Bauform und Footprint) – abweichend in Operating Temperature, Package, USB, RoHS Status, ADC.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
ATSAMD21G18L-MFT
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
ATSAMD21G17L-MN
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
ATSAMD21G17D-MF
✅ Drop-In✓ Auf Lager
$2.85 / Stück
Datenblatt ansehen →ATSAMD21G17A-MFT
✅ Drop-In✓ Auf Lager
$2.4 / Stück
Datenblatt ansehen →ATSAMD21G17A-AFT
✅ Drop-In✓ Auf Lager
$3.7 / Stück
Datenblatt ansehen →ATSAMD21G16L-MUT
✅ Drop-In✓ Auf Lager
$2.55 / Stück
Datenblatt ansehen →ATSAMD21G16B-MFT
✅ Drop-In✓ Auf Lager
$1.96 / Stück
Datenblatt ansehen →ATSAMD21G17L-MFT Grenzwerte & elektrische Eigenschaften
| Core Architecture | ARM Cortex-M0+ (32-bit) |
| CPU Frequency | 48 MHz |
| Flash Memory | 128 KB (128K x 8) |
| SRAM | 16 KB |
| Operating Voltage | 1.62 V to 3.63 V |
| Betriebstemperatur | -40 C to +125 C (AEC-Q100 Grade 1) |
| Gehäuse | 48-pin QFN (7x7 mm) with exposed pad |
| ADC | 12-bit, up to 1 MSPS |
| SERCOM Interfaces | 6 (configurable as UART/SPI/I2C) |
| USB Interface | USB 2.0 Full-Speed Device |
| I2S Interfaces | 2 |
| Timers | TC x 3, TCC x 3, RTC x 1 |
| AES Cryptographic Engine | Yes (256-bit) |
| Montageart | Surface Mount |
| MSL-Level | 3 (168 hours) |
| RoHS-Status | Compliant |
| AEC-Q100 Qualified | Yes (Grade 1, lighting variant) |
| Debug Interface | SWD (Serial Wire Debug) |
| DMA Channels | 12 |
| GPIOs | 38 |
ATSAMD21G17L-MFT Pin-Konfiguration
| Pin 1 | PA00 — GPIO / XIN32 / SERCOM1.0 |
| Pin 2 | PA01 — GPIO / XOUT32 / SERCOM1.1 |
| Pin 3 | PA02 — GPIO / AIN0 / VOUT / SERCOM0.0 |
| Pin 4 | PA03 — GPIO / AIN1 / VREF / SERCOM0.1 |
| Pin 5 | GND — Ground |
| Pin 6 | VDD — Digital supply voltage |
| Pin 7 | PA04 — GPIO / AIN4 / VREF / TCC0.0 / SERCOM0.2 |
| Pin 8 | PA05 — GPIO / AIN5 / VDIV / TCC0.1 / SERCOM0.3 |
| Pin 9 | PA06 — GPIO / AIN6 / TCC1.0 / SERCOM0.4 |
| Pin 10 | PA07 — GPIO / AIN7 / TCC1.1 / SERCOM0.5 |
| Pin 11 | PA08 — GPIO / AIN8 / TCC2.0 / SERCOM2.0 |
| Pin 12 | PA09 — GPIO / AIN9 / TCC2.1 / SERCOM2.1 |
| Pin 13 | PA10 — GPIO / AIN10 / TCC0.2 / SERCOM2.2 |
| Pin 14 | PA11 — GPIO / AIN11 / TCC0.3 / SERCOM2.3 |
| Pin 15 | VDD — Digital supply voltage |
| Pin 16 | GND — Ground |
| Pin 17 | PA12 — GPIO / SERCOM4.0 / TCC2.2 |
| Pin 18 | PA13 — GPIO / SERCOM4.1 / TCC2.3 |
| Pin 19 | PA14 — GPIO / SERCOM4.2 / TCC0.4 |
| Pin 20 | PA15 — GPIO / SERCOM4.3 / TCC0.5 |
| Pin 21 | PA16 — GPIO / SERCOM3.0 / TCC1.2 |
| Pin 22 | PA17 — GPIO / SERCOM3.1 / TCC1.3 |
| Pin 23 | PA18 — GPIO / SERCOM3.2 / TCC1.4 |
| Pin 24 | PA19 — GPIO / SERCOM3.3 / TCC1.5 |
| Pin 25 | PA20 — GPIO / SERCOM5.2 / TCC0.6 |
| Pin 26 | PA21 — GPIO / SERCOM5.3 / TCC0.7 |
| Pin 27 | PA22 — GPIO / SERCOM5.0 / TCC2.4 |
| Pin 28 | PA23 — GPIO / SERCOM5.1 / TCC2.5 / USB_DM |
| Pin 29 | PA24 — GPIO / SERCOM5.2 / TCC2.7 / USB_DP |
| Pin 30 | PA25 — GPIO / SERCOM5.3 |
| Pin 31 | GND — Ground |
| Pin 32 | VDD — Digital supply voltage |
| Pin 33 | PA27 — GPIO |
| Pin 34 | RESET — Reset input (active low) |
| Pin 35 | PA28 — GPIO |
| Pin 36 | PA29 — GPIO |
| Pin 37 | PA30 — GPIO / SWDIO |
| Pin 38 | PA31 — GPIO / SWDCLK |
| Pin 39 | PB00 — GPIO / AIN12 / SERCOM5.0 |
| Pin 40 | PB01 — GPIO / AIN13 / SERCOM5.1 |
| Pin 41 | PB02 — GPIO / AIN14 / SERCOM5.2 |
| Pin 42 | PB03 — GPIO / AIN15 / SERCOM5.3 |
| Pin 43 | PB04 — GPIO / SERCOM3.0 |
| Pin 44 | PB05 — GPIO / SERCOM3.1 |
| Pin 45 | PB06 — GPIO / SERCOM3.2 |
| Pin 46 | PB07 — GPIO / SERCOM3.3 |
| Pin 47 | PB08 — GPIO / SERCOM4.0 |
| Pin 48 | PB09 — GPIO / SERCOM4.1 |
| Pin 49 | EP — Exposed thermal pad, must be soldered to ground |
Typische Anwendungen
ATSAMD21G17L-MFT ist geeignet für 8 Anwendungs: Automotive LED Lighting Controller, BLDC Motor Control, USB HID / CDC Peripheral, Industrial IoT Sensor Hub, Automotive Body Electronics, Home Automation Controller, Portable Medical Monitoring, Consumer Audio Streaming Device.
Automotive LED Lighting Controller
The ATSAMD21G17L-MFT's L-suffix lighting optimization, AEC-Q100 Grade 1 qualification (-40C to +125C), and three TCC timer blocks with complementary PWM output make it ideal for automotive matrix-LED headlamps and dynamic turn signal controllers. The 12-bit ADC with 1 MSPS sampling provides high-bandwidth current sensing for closed-loop LED brightness control and color-point regulation in RGBW applications. With six SERCOM peripherals configurable as CAN, LIN, or SPI, the MCU can simultaneously drive a LIN-connected body controller and a SPI-connected driver IC such as the TPS929120. Estimated total quiescent plus operating current at 48 MHz is below 15 mA, well within automotive supply budgets.
Empfohlen
BLDC Motor Control
The ATSAMD21G17L-MFT's three TCC timer/counter channels deliver complementary PWM with programmable dead-time insertion, exactly the peripherals required for 3-phase BLDC or PMSM commutation. The 12-bit ADC with hardware triggering from PWM events enables synchronous back-EMF sampling for position estimation, while the Event System routes peripheral triggers without CPU wake-up for ultra-low-power SleepWalking control. With 48 MHz Cortex-M0+ performance and single-cycle I/O, the device executes sensorless FOC firmware with adequate margin. A typical sensorless BLDC driver uses 3 low-side shunt resistors plus external FET gate drivers such as the DRV8313.
Empfohlen
USB HID / CDC Peripheral
The integrated USB 2.0 Full-Speed device port on the ATSAMD21G17L-MFT enables HID-class peripherals (keyboards, mice, custom input panels), CDC virtual COM port bridges, and vendor-class devices without external PHY. With 128 KB Flash and 16 KB SRAM, the device hosts USB stacks such as LUFA or Microchip's ASF USB framework while leaving room for application firmware. The bootloader ROM at the top of flash supports USB-based firmware upgrade via the Atmel DFU protocol. Operating voltage must remain above 2.7V for the internal USB transceiver to meet USB-IF compliance; below this threshold the VBUS regulator must supply 3.3V externally.
Empfohlen
Industrial IoT Sensor Hub
The ATSAMD21G17L-MFT is a strong fit for industrial sensor hubs collecting data from I2C/SPI sensors and forwarding it via UART, CAN, or RS-485 to a host controller. The SERCOM reconfiguration lets designers assign any of the 6 interfaces to UART, SPI master/slave, or I2C master/slave, supporting common sensor protocols. With 38 GPIOs available on the QFN-48, multiple sensors, indicator LEDs, and a status display can be wired without an IO expander. For low-power sensor nodes, the SleepWalking peripherals enable sub-10 uA standby while monitoring interrupts from external sensors without CPU wakeup.
Empfohlen
Automotive Body Electronics
With AEC-Q100 Grade 1 qualification and -40C to +125C operation, the ATSAMD21G17L-MFT qualifies for under-hood and cabin body control modules including door modules, seat controllers, mirror adjusters, and HVAC flaps. The integrated LIN-capable SERCOM and CAN-capable SERCOM connect directly to automotive bus networks, while the RTC calendar mode supports time-stamped event logging for diagnostics. AEC-Q100 qualification ensures the device survives automotive EMC, ESD, and temperature stress profiles per Microchip qualification reports.
Empfohlen
Home Automation Controller
For home automation gateways and edge controllers, the ATSAMD21G17L-MFT combines Wi-Fi/BLE co-processor connectivity via SERCOM-SPI with enough processing headroom to handle local control logic. The 48-pin QFN keeps the BOM small while the 38 GPIOs drive multiple relays, keypads, and indicator LEDs. With 16 KB SRAM and 128 KB Flash, the device supports TCP/IP stacks via external WINC1500 Wi-Fi or RN4871 BLE modules while maintaining real-time response to local user inputs. The brown-out detector and watchdog timer ensure recovery from supply transients common in residential electrical environments.
Empfohlen
Portable Medical Monitoring
The low-power SleepWalking peripherals, sub-10 uA deep-sleep modes, and 1 MSPS 12-bit ADC make the ATSAMD21G17L-MFT suitable for battery-powered medical monitoring peripherals such as pulse oximeters, spirometers, and wearable health patches. The 48 MHz Cortex-M0+ executes signal-processing routines (peak detection, FIR filtering, SpO2 calculations) in real time at modest MIPS. The integrated USB port supports device-class firmware upload plus battery charging via standard USB supplies. Note that medical device certification requires additional IEC 60601 qualification beyond the MCU datasheet ratings.
Empfohlen
Consumer Audio Streaming Device
The two I2S interfaces on the ATSAMD21G17L-MFT enable connection to external audio codecs and DACs for consumer audio streaming applications such as Bluetooth speakers, USB audio dongles, and smart-home voice assistants. The hardware AES-256 cryptographic engine offloads encrypted audio stream decryption. SERCOM peripherals configure as I2C for codec control and SPI for flash storage of audio assets. Operating from 1.62V to 3.63V allows direct Li-ion battery connection with internal regulation, simplifying the power tree. The 38 GPIO count accommodates multiple push-buttons, LED indicators, and an LCD segment driver interface.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ATSAMD21G17L-MFT – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | ATSAMD21G18L-MFT | ATSAMD21G17D-MF | ATSAMD21G17A-MFT | ATSAMD21G16L-MUT |
|---|---|---|---|---|---|
| Package | QFN-48 (7x7) | QFN-48 (7x7) - same | QFN-48 (7x7) - same | QFN-48 (7x7) - same | QFN-48 (7x7) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 256 KB | 128 KB | 128 KB | 64 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 16 KB | 8 KB |
| CPU Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +85C | -40C to +105C | -40C to +125C |
| AEC-Q100 Grade | Grade 1 | Grade 1 | Not qualified | Grade 2 | Grade 1 |
| Lighting Variant (L-suffix) | Yes | Yes | No (D-suffix) | No (A-suffix) | Yes |
| Approx Unit Price (qty 1) | $4.85 | $5.20 | $4.40 | $4.50 | $4.20 |
Wichtigste Unterscheidungsmerkmale
- AEC-Q100 Grade 1 qualification for -40C to +125C operation (vs. ATSAMD21G17D-MF)
- Lighting-optimized firmware extensions (L-suffix) (vs. ATSAMD21G17A-MFT)
- 128 KB Flash and 16 KB SRAM in same QFN-48 footprint (vs. ATSAMD21G16L-MUT)
- Hardware AES-256 cryptographic engine (vs. ATSAMD21G17D-MF)
- 6 SERCOM peripherals each configurable as UART/SPI/I2C (vs. ATSAMD21E17L-MFT)
Designhinweise
Apply a 100 nF X7R decoupling capacitor within 2 mm of each VDD pin (pins 6, 15, 32) plus a single 4.7 uF bulk ceramic or tantalum capacitor on the main 3.3V rail. Place decoupling capacitors on the same layer as the MCU with vias directly to the ground plane. The exposed thermal pad (EP, pin 49) must be soldered to a continuous ground plane with at least 9 thermal vias (0.3 mm drill, 0.5 mm pitch) to dissipate package heat and provide the electrical ground reference. Failure to solder the EP voids the device's electrical and thermal specifications.
Keep the SWDIO (PA30) and SWDCLK (PA31) traces under 50 mm total length and route them away from high-current switching nodes such as the PA22-PA25 USB data lines and PWM outputs from the TCC peripherals. Place a 4.7 kohm pull-up on the RESET pin (pin 34) for normal operation. Avoid routing GPIO traces under the QFN package body where they can introduce coupling into the exposed pad ground reference. Use a 4-layer PCB stackup with dedicated ground and power planes for optimal EMI performance.
Do not exceed 3.63V on any VDD pin or 5V tolerant I/O pin or the device may suffer permanent damage. The USB DM (PA23) and USB DP (PA24) lines require 22 ohm series resistors and a common-mode choke per the USB 2.0 specification when running above 12 Mbps. The internal 1.2V core voltage regulator requires the VDD voltage to remain above 1.62V for LDO regulation. Programming via SWD requires both SWDIO and SWDCLK connections; ensure the Atmel-ICE or J-Link tool provides a valid VCC reference before connecting.
Estimated junction temperature calculation: at 48 MHz with all peripherals active the device draws approximately 15 mA from a 3.3V supply, giving core power dissipation of approximately 49.5 mW. With QFN-48 thermal resistance of approximately 31 C/W to a 4-layer JEDEC EIA/JESD51 test board, junction temperature rise above ambient is approximately 1.5 C. Under-hood operation at +85 C ambient leaves a +40 C margin to the +125 C AEC-Q100 Grade 1 maximum, providing safe thermal headroom for the application.
For high-speed SERCOM-SPI operation above 12 MHz, place source-termination resistors (typically 22-33 ohm) within 5 mm of the MCU pin to dampen reflections on long PCB traces. The I2S peripheral lines (when assigned to specific PORT pins) should be routed as differential pairs with matched lengths (<5 mm mismatch) and a continuous ground reference underneath. For CAN bus connections, route CANH and CANL as a 120 ohm differential pair with no stubs longer than 5 mm. ESD protection on externally-exposed pins (USB, CAN, GPIO going to connectors) should use low-capacitance TVS arrays rated for automotive ISO 10605 pulses.
Compliance-Informationen
AEC-Q100 Grade 1 qualified (-40C to +125C) per Microchip qualification reports. RoHS and REACH compliant per Microchip product page. Halogen-free per Microchip material declaration. Conflict minerals CMRT compliant.