ATSAMDA1J16B-MBT - 64KB Flash Cortex-M0+ MCU 64-VQFN | Microchip
MPN: ATSAMDA1J16B-MBT ✓ Hoạt độngATSAMDA1J16B-MBT Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and a rich set of programmable peripherals. The ARM Cortex-M0+ is the most energy-efficient core in the Cortex-M family, designed for ultra-low-power deterministic embedded designs. Microchip's SAM DA1 family positions the ATSAMDA1J16B in the Functional-Safety (FuSa) automotive series, sitting between the SAM D20/D21 general-purpose line and the higher-end SAM V71 Cortex-M7 parts, and is qualified for AEC-Q100 applications.
Key features include 6 SERCOM serial communication modules that can each be configured as I2C, SPI or USART, a 12-bit 350 ksps ADC with up to 20 channels, 10-bit DAC, two analog comparators, two I2S channels, a 24-bit Timer/Counter for Control (TCC), and full-speed USB Device. Six flexible pin-muxed SERCOMs plus USB and a 12-bit ADC let one device serve as the entire control hub of a small product.
The SAM DA1 architecture combines a Cortex-M0+ core with Microchip's peripheral event system, deterministic DMA, and a SleepWalking power management unit, achieving 2.46 CoreMark/MHz. The event system lets peripherals trigger each other without waking the CPU, enabling sub-microamp sleep current while keeping the device ready to react in real time. The integrated 12-bit ADC supports both single-ended and differential conversions with hardware oversampling, while the 24-bit TCC provides high-resolution PWM for motor and lighting control.
Typical applications include automotive body and convenience ECUs, human-machine interface (HMI) panels, smart-metering, low-power IoT sensor nodes, and USB-based consumer peripherals. The 6 SERCOMs and integrated USB make it suitable for industrial sensor hubs and touch-button front panels where multiple communication interfaces must coexist on a small board.
A key design consideration: this part is the AEC-Q100 FuSa variant of the SAM D21J16B. Designers targeting non-automotive consumer products can use the standard ATSAMD21J16B-MU with the same QFN-64 footprint, while designers needing functional-safety documentation must use the ATSAMDA1J16B-MBT.
This page synthesizes distributor pricing, AEC-Q100 compliance notes, drop-in alternatives, and practical design guidance not collected in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho ATSAMDA1J16B-MBT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ATSAMDA1J16B-MBT (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, USB, Series, RoHS Status.
ATSAMD21J16B-MU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMDA1J15B-MBT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAMDA1J16B-ABT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAMDA1E16B-ABT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMDA1G15B-MBT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMDA1J16B-MBT Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M0+ (32-bit) |
| Tần số xung maksimum | 48 MHz |
| DMIPS | 45 |
| CoreMark Score | 2.46 CoreMark/MHz |
| Program Flash | 64 KB |
| SRAM | 8 KB |
| RWW Flash | 2 KB |
| Hộp | 64-VQFN (9x9 mm), TAPE & REEL |
| Số chân | 64 |
| SERCOM Modules | 6 (configurable as I2C / SPI / USART) |
| ADC | 12-bit, up to 350 ksps |
| DAC | 10-bit |
| Analog Comparators | 2 |
| I2S Channels | 2 |
| Timer/Counter for Control | 24-bit TCC |
| USB | Full-speed USB Device |
| Series | SAM DA1, Functional Safety (FuSa), AEC-Q100 |
| Operating Voltage | 1.62 V to 3.63 V |
| Nhiệt độ hoạt động | -40 C to +125 C |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân ATSAMDA1J16B-MBT
| Chân 1 | VDD — Digital supply voltage |
| Chân 2 | PA00 — GPIO / SERCOM1 pad 0 |
| Chân 3 | PA01 — GPIO / SERCOM1 pad 1 |
| Chân 4 | PA02 — Analog / ADC AIN0 positive |
| Chân 5 | PA03 — Analog / ADC AIN0 negative / VREFA |
| Chân 6 | GND — Ground reference |
| Chân 7 | PA04 — Analog / ADC AIN4 / DAC VOUT |
| Chân 8 | PA05 — Analog / ADC AIN5 |
| Chân 9 | PA06 — Analog / ADC AIN6 / AC AIN2 |
| Chân 10 | PA07 — Analog / ADC AIN7 / AC AIN3 |
| Chân 11 | VDD — Digital supply voltage |
| Chân 12 | GND — Ground reference |
| Chân 13 | PA08 — GPIO / SERCOM0 pad 0 |
| Chân 14 | PA09 — GPIO / SERCOM0 pad 1 |
| Chân 15 | PA10 — GPIO / SERCOM2 pad 0 |
| Chân 16 | PA11 — GPIO / SERCOM2 pad 1 |
| Chân 17 | PA12 — GPIO / SERCOM4 pad 0 |
| Chân 18 | PA13 — GPIO / SERCOM4 pad 1 |
| Chân 19 | PA14 — GPIO / SERCOM3 pad 0 / XIN |
| Chân 20 | PA15 — GPIO / SERCOM3 pad 1 / XOUT |
| Chân 21 | PA16 — GPIO / SERCOM1 pad 0 |
| Chân 22 | PA17 — GPIO / SERCOM1 pad 1 |
| Chân 23 | VDD — Digital supply voltage |
| Chân 24 | PA18 — GPIO / SERCOM5 pad 0 |
| Chân 25 | PA19 — GPIO / SERCOM5 pad 1 |
| Chân 26 | PA20 — GPIO / SERCOM3 pad 2 |
| Chân 27 | PA21 — GPIO / SERCOM3 pad 3 |
| Chân 28 | GND — Ground reference |
| Chân 29 | PA22 — GPIO / SERCOM5 pad 2 / I2S FS0 |
| Chân 30 | PA23 — GPIO / SERCOM5 pad 3 / I2S MCK0 |
| Chân 31 | PA24 — USB_DM (USB device negative data) |
| Chân 32 | PA25 — USB_DP (USB device positive data) |
| Chân 33 | PA26 — GPIO / SERCOM5 pad 0 |
| Chân 34 | PA27 — GPIO / SERCOM5 pad 1 |
| Chân 35 | PA28 — Reset (NRST, active low) |
| Chân 36 | VDD — Digital supply voltage |
| Chân 37 | GND — Ground reference |
| Chân 38 | PA29 — GPIO / SERCOM5 pad 3 |
| Chân 39 | PA30 — SWDCLK (debug clock) |
| Chân 40 | PA31 — SWDIO (debug data) |
| Chân 41 | GND — Ground reference |
| Chân 42 | PB00 — GPIO / SERCOM5 pad 2 |
| Chân 43 | VDD — Digital supply voltage |
| Chân 44 | PB01 — GPIO / SERCOM5 pad 3 |
| Chân 45 | PB02 — GPIO / SERCOM5 pad 0 |
| Chân 46 | PB03 — GPIO / SERCOM5 pad 1 |
| Chân 47 | PB04 — GPIO / SERCOM3 pad 0 |
| Chân 48 | PB05 — GPIO / SERCOM3 pad 1 |
| Chân 49 | PB06 — GPIO / SERCOM0 pad 0 |
| Chân 50 | PB07 — GPIO / SERCOM0 pad 1 |
| Chân 51 | PB08 — GPIO / SERCOM4 pad 0 / I2S MCK1 |
| Chân 52 | PB09 — GPIO / SERCOM4 pad 1 / I2S FS1 |
| Chân 53 | PB10 — GPIO / SERCOM4 pad 2 / I2S SCK1 |
| Chân 54 | PB11 — GPIO / SERCOM4 pad 3 / I2S SDO1 |
| Chân 55 | PB12 — GPIO / SERCOM2 pad 0 / TCC0 WO0 |
| Chân 56 | PB13 — GPIO / SERCOM2 pad 1 / TCC0 WO1 |
| Chân 57 | PB14 — GPIO / SERCOM2 pad 2 / TCC0 WO2 |
| Chân 58 | PB15 — GPIO / SERCOM2 pad 3 / TCC0 WO3 |
| Chân 59 | PB16 — GPIO / SERCOM5 pad 0 / TCC1 WO0 |
| Chân 60 | GND — Ground reference |
| Chân 61 | PB17 — GPIO / SERCOM5 pad 1 / TCC1 WO1 |
| Chân 62 | PB18 — GPIO / SERCOM3 pad 2 / TCC1 WO2 |
| Chân 63 | PB19 — GPIO / SERCOM3 pad 3 / TCC1 WO3 |
| Chân 64 | VDD — Digital supply voltage |
Ứng dụng tiêu biểu
ATSAMDA1J16B-MBT phù hợp cho 6 Áp dụngs: Automotive Body and Convenience ECU, Low-Power IoT Sensor Node, Industrial HMI Touch Panel, USB-Based Consumer Peripheral, Smart Metering and Energy Monitor, Wearable Fitness and Health Device.
Automotive Body and Convenience ECU
The ATSAMDA1J16B-MBT is purpose-built for AEC-Q100 body and convenience ECUs (door modules, seat controllers, mirror adjusters, lighting drivers) where functional-safety documentation is mandatory. Its 6 SERCOMs can simultaneously drive LIN, CAN MCUs via external transceivers, and SPI sensors; the integrated USB Device enables factory firmware upload without removing the part. The 24-bit TCC delivers high-resolution PWM for LED dimming and motor control, while the 12-bit ADC samples thermistor and current-sense feedback in real time. Compared to the standard ATSAMD21J16B-MU, the MBT's ISO 26262 safety manual and FMEDA report streamline ASIL-B certification.
Được đề xuất
Low-Power IoT Sensor Node
For battery-powered IoT sensor nodes (smart thermostats, air-quality monitors, agricultural sensors), the ATSAMDA1J16B-MBT's Cortex-M0+ efficiency (2.46 CoreMark/MHz) and SleepWalking peripherals enable multi-year coin-cell operation. The 6 SERCOMs run concurrent I2C sensors, SPI radios, and UART debug without CPU wakeups, while the 12-bit ADC samples analog sensors on demand. The 2 KB RWW Flash stores rolling calibration data without external EEPROM, and the full-speed USB Device provides a convenient firmware-update port during manufacturing and field service.
Được đề xuất
Industrial HMI Touch Panel
In industrial human-machine-interface (HMI) panels, the ATSAMDA1J16B-MBT's 6 SERCOMs support multi-touch I2C digitizers, SPI TFT displays, and isolated RS-485 backhaul simultaneously. The 24-bit TCC provides flicker-free LED backlight PWM and the 12-bit ADC reads ambient-light sensors and rotary encoders. AEC-Q100 qualification lets the same firmware run on industrial-rail panels and on in-cab automotive displays, reducing software-maintenance cost. The integrated USB Device streamlines touch-panel calibration firmware upload at end-of-line production.
Được đề xuất
USB-Based Consumer Peripheral
For USB consumer peripherals such as HID controllers, audio interfaces, and programming tools, the ATSAMDA1J16B-MBT's integrated full-speed USB Device eliminates the need for an external bridge chip, reducing BOM cost and board area. The Cortex-M0+ at 48 MHz comfortably drives USB HID, CDC, and vendor-class endpoints with CPU headroom for application code. The 64 KB Flash holds USB stacks plus application firmware, and 8 KB SRAM buffers USB packets without DMA stalls.
Được đề xuất
Smart Metering and Energy Monitor
In smart electricity, gas, and water meters, the ATSAMDA1J16B-MBT combines low-power Cortex-M0+ operation with a high-accuracy 12-bit ADC suitable for current-sense and temperature monitoring. The 6 SERCOMs drive the metrology front-end, an LCD controller, an NFC tag for tap-to-read, and a wireless M-Bus or LoRaWAN modem. AEC-Q100 FuSa qualification supports outdoor enclosure operation across -40 C to +125 C, and the 2 KB RWW Flash stores rolling consumption logs without external EEPROM.
Được đề xuất
Wearable Fitness and Health Device
For wearable fitness bands and health monitors, the ATSAMDA1J16B-MBT's Cortex-M0+ efficiency and 6 SERCOMs run Bluetooth Low Energy modules, PPG / SpO2 sensor front-ends, and SPI displays on a single device. The 12-bit ADC samples bioelectric signals at low power, while the 2 KB RWW Flash stores user profiles and activity data without external EEPROM. The QFN-64 9x9 mm package fits comfortably in compact wearable form factors, and SleepWalking peripherals let the MCU sleep with sensors active, extending battery life into multi-week territory.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAMDA1J16B-MBT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ATSAMD21J16B-MU | ATSAMDA1J15B-MBT | ATSAMDA1J16B-ABT | ATSAMDA1E16B-ABT | ATSAMDA1G15B-MBT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | QFN-64 (VQFN 9x9 mm) | QFN-64 | QFN-64 | TQFP-64 | TQFP-64 | QFN-48 |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Max Clock Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Flash / SRAM | 64 KB / 8 KB | 64 KB / 8 KB | 64 KB / 8 KB | 64 KB / 8 KB | 64 KB / 8 KB | 64 KB / 8 KB |
| AEC-Q100 Qualified | Yes (FuSa) | No (industrial only) | Yes (FuSa) | Yes (FuSa) | Yes (FuSa) | Yes (FuSa) |
| Pin Count | 64 | 64 | 64 | 64 | 64 | 48 |
| SERCOM Modules | 6 | 6 | 6 | 6 | 6 | 6 |
Bảo phân biệt quan trọng
- AEC-Q100 Functional-Safety (FuSa) qualification (vsATSAMD21J16B-MU)
- Pin-to-pin compatibility with SAM D21 family (vsATSAMDA1J15B-MBT)
- QFN-64 package with integrated USB and 12-bit ADC (vsATSAMDA1E16B-ABT (TQFP-64, 32-pin variant))
Ghi chú thiết kế
The ATSAMDA1J16B-MBT operates from 1.62 V to 3.63 V. Place a 100 nF X7R ceramic decoupling capacitor within 5 mm of each VDD pin (1, 11, 23, 36, 43, 64) and a 4.7 uF bulk capacitor near the VDDIN pin to suppress transient load steps from the USB and ADC peripherals. Tie VDDANA and VDDIO together on the board and feed both from the same low-noise LDO. Estimated: at 48 MHz active, the core draws ~7 mA per VDD rail; in Standby with RTC running, the device drops below 5 uA total.
In the QFN-64 9x9 mm package, theta_JA is approximately 30 C/W on a 4-layer JEDEC test board, giving a 50 C junction rise at 1.5 W. In typical automotive ECU enclosures the device dissipates well under 0.5 W, so no heatsink is required, but designers must keep the central EPAD soldered to a 1 square-inch copper pour to keep junction temperatures within the -40 C to +125 C AEC-Q100 Grade-1 window. Avoid routing high-current traces directly under the EPAD to prevent solder-joint fatigue.
Keep the 32.768 kHz crystal traces within 5 mm of pins PA14 (XIN) and PA15 (XOUT), shield them with a ground guard ring, and series-terminate them with ~100 ohm resistors if the layout is long. For USB, route the PA24/PA25 differential pair with 90-ohm differential impedance and keep total length under 25 mm to maintain full-speed USB compliance. Place a 1 M-ohm pull-up on NRST (PA28) and a 1 nF capacitor to VDD for clean reset behaviour during automotive cranking transients.
Do not exceed 3.63 V on any VDD pin, including during automotive load-dump events up to 40 V. Place a TVS diode such as SMAJ33A and a 10-ohm series resistor on the 12 V supply input. Ensure the SWDIO/SWDCLK pins (PA30/PA31) are not used as GPIO in production firmware, because accidental configuration as output can lock out subsequent debug access. Also, the RWW Flash 2 KB region cannot store bootable code - place all interrupt vectors in the main 64 KB Flash to avoid hard-fault reset loops.
Thông tin tuân thủ
AEC-Q100 qualified per SAM DA1 FuSa series documentation. RoHS compliance per Microchip product page; REACH status confirmed by DigiKey listing as of 2026-09-21.
