ATSAMD20G17A-ANT - 48MHz ARM Cortex-M0+ MCU 128KB Flash 48-TQFP
MPN: ATSAMD20G17A-ANT ✓ Hoạt độngATSAMD20G17A-ANT Tóm tắt
What is a Cortex-M0+ microcontroller? An ARM Cortex-M0+ is an ultra-low-power 32-bit microcontroller core designed for embedded applications; it sits within the broader microcontroller category which includes 8-bit (AVR, PIC), 16-bit (MSP430), and 32-bit (Cortex-M, RISC-V) families, and is a sub-category of microcontrollers which in turn falls under embedded processors, semiconductors, and electronic components. The M0+ architecture delivers Thumb-2 instruction set efficiency while consuming roughly one-third the energy of older 8-bit cores at equivalent throughput.
Key features include the Atmel/Microchip Event System for peripheral interoperation without CPU intervention, up to six SERCOM (serial communication) interfaces that can each be independently configured as UART/USART, SPI, or I2C, a 12-bit ADC with up to 350 ksps sampling, a 10-bit DAC, and multiple timer/counter blocks for PWM and capture. The device also features a full-speed USB 2.0 interface, an internal 32kHz and 8MHz oscillator, and a Peripheral Touch Controller for capacitive touch sensing.
The SAM D20G architecture uses single-cycle hardware multiplication and a Nested Vector Interrupt Controller (NVIC) for deterministic interrupt response. Its SleepWalking peripheral gating allows peripherals to wake the CPU only when needed, extending battery life in IoT sensor nodes to years on a single coin cell when paired with appropriate duty cycling.
Typical applications include home automation gateways, smart metering, industrial sensor hubs, low-power wireless sensor nodes, consumer electronics with capacitive touch UI, and battery-powered IoT devices. The wide operating voltage range and rich peripheral set also make it well suited for portable medical and fitness devices.
When designing with this device, ensure the decoupling network uses a 100nF ceramic capacitor close to each VDD pin plus a bulk 4.7uF capacitor; failure to do so may cause ADC noise pickup. Also note that migrating to the SAM D20 family from legacy AVR requires use of the Atmel/Microchip Studio or MPLAB X IDE with the appropriate CMSIS pack.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet, including engineering trade-offs versus other 48-pin Cortex-M0+ MCUs.
Bộ thay thế dễ dàng lắp đặt cho ATSAMD20G17A-ANT — 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 ATSAMD20G17A-ANT (cùng hình factor và footprint) — khác nhau ở ADC, DAC, Operating Temperature Range, Lead-Free / Halogen-Free, RoHS Status.
ATSAMD20G17A-AN
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAMD20G17A-AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD20G17A-AUT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD20G18A-ANT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD20G16B-ANT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAMD20G17A-ANT Tỷ lệ tối đa & tính chất điện
| Core Processor | ARM Cortex-M0+ |
| Core Size | 32-Bit |
| Tần số xung maksimum | 48 MHz |
| Program Memory Size | 128 KB (128K x 8) Flash |
| RAM Size | 16 KB |
| Supply Voltage Range | 1.62 V to 3.63 V |
| Khoảng nhiệt độ hoạt động | -40 C to +105 C |
| Hộp / Vỏ | 48-TQFP (7x7 mm) |
| Kiểu lắp đặt | Surface Mount |
| ADC | 12-bit, up to 350 ksps |
| DAC | 10-bit |
| Communication Interfaces | Up to 6 SERCOM (UART/SPI/I2C configurable), I2S, USB 2.0 Full-Speed |
| Timers | TC (Timer/Counter) and TCC (Timer/Counter for Control) modules |
| Touch Sensing | Peripheral Touch Controller (PTC) |
| CoreMark/MHz | 2.14 |
| Trạng thái RoHS | Compliant |
| Lead-Free / Halogen-Free | Green, lead-free, halogen-free per Mouser description |
| Packaging | Tape & Reel (TR) per ANT suffix |
Hướng dẫn cấu hình chân ATSAMD20G17A-ANT 48-tqfp (7x7 mm)
Cấu hình chân cho ATSAMD20G17A-ANT (48-tqfp (7x7 mm) gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho ATSAMD20G17A-ANT.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ATSAMD20G17A-ANT phù hợp cho 6 Áp dụngs: Smart Home Sensor Hub, Industrial Metering and Data Logging, Battery-Powered IoT Edge Node, Capacitive Touch Consumer UI, Low-Speed USB Device (HID/CDC), Portable Medical / Fitness Wearable.
Smart Home Sensor Hub
The ATSAMD20G17A-ANT fits smart-home sensor hubs because its Cortex-M0+ core running at 48MHz executes multi-sensor fusion and BLE/Zigbee co-processor UART protocol with ample headroom. The 16KB SRAM accommodates a small RTOS plus sensor queues, while 128KB Flash holds application firmware, OTA bootloader, and a TLS/DTLS client. The 1.62-3.63V supply range allows direct connection to a single 3.6V Li-SOCl2 primary cell without an LDO. Six configurable SERCOM peripherals simultaneously handle SPI for an environmental sensor, I2C for a temperature/humidity IC, and UART for a wireless co-processor - all without CPU intervention thanks to the SAM D20 Event System. SleepWalking peripheral gating drops quiescent current below 1uA in standby, enabling multi-year battery life on a coin cell.
Được đề xuất
Industrial Metering and Data Logging
The ATSAMD20G17A-ANT is well suited for industrial metering (water/gas/electricity) due to its -40C to +105C industrial temperature range and 12-bit ADC sampling up to 350 ksps for accurate sensor readout. The Peripheral Touch Controller enables capacitive button or rotary UI on the meter face without extra ICs, while 128KB Flash holds metrology libraries plus tamper-detection firmware. Low-power SleepWalking plus 1.62-3.63V direct battery operation supports unattended deployment of 10+ years on a primary cell. Six SERCOM channels accommodate M-Bus, RS-485, or wireless M-Bus modules concurrently, and the 10-bit DAC drives a precision analog front-end or piezo buzzer for alerts.
Được đề xuất
Battery-Powered IoT Edge Node
The ATSAMD20G17A-ANT fits battery-powered IoT edge nodes because SleepWalking mode drops quiescent current below 1uA while still allowing SERCOM, ADC, and PTC peripherals to wake the CPU only on real events. Its 1.62-3.63V input range accepts a single Li-ion or 2xAA directly, removing the LDO loss that would otherwise erode battery life. The Cortex-M0+ at 48MHz executes LoRaWAN or sub-GHz protocol stacks within the 128KB Flash budget, leaving room for sensor drivers and a secure bootloader. Peripheral Touch Controller enables capacitive wake buttons that draw only nanoamps, and the 12-bit ADC reads battery voltage and analog sensor channels without external components.
Được đề xuất
Capacitive Touch Consumer UI
The ATSAMD20G17A-ANT drives capacitive-touch consumer interfaces (appliance panels, audio products, smart thermostats) using its integrated Peripheral Touch Controller supporting up to several dozen touch channels with hardware-driven acquisition, freeing the CPU for application logic. The 48MHz Cortex-M0+ renders simple LCD segments via SERCOM-SPI to an external display driver, while 128KB Flash holds capacitive-touch firmware plus Wi-Fi/BLE co-processor protocol state machines. The 1.62-3.63V range supports direct 3.3V system rails without boost regulators, and the 48-TQFP 7x7mm package fits behind typical control-panel bezels. Industrial temperature grade permits outdoor installations such as EV chargers and pool controllers.
Được đề xuất
Low-Speed USB Device (HID/CDC)
The ATSAMD20G17A-ANT provides an integrated full-speed USB 2.0 device interface, eliminating the need for an external PHY for HID-class peripherals such as keyboards, mice, game controllers, and CDC serial adapters. The 48MHz core easily handles HID report polling at 1 kHz while 128KB Flash stores HID descriptors, button matrix mappings, and protocol stacks for composite USB devices. Six SERCOM channels leave UART/SPI/I2C free for side-channels like RGB lighting or external EEPROM. The 1.62-3.63V range accepts a regulated 3.3V USB rail directly, and the 48-TQFP 7x7mm footprint suits small USB dongle enclosures.
Được đề xuất
Portable Medical / Fitness Wearable
The ATSAMD20G17A-ANT suits portable medical and fitness wearables because its 1uA SleepWalking standby preserves battery life across weeks of wear, and the 1.62-3.63V range accepts a single coin-cell or Li-Po cell directly. The 12-bit ADC captures heart-rate, SpO2, and galvanic-skin-response sensor channels with adequate resolution for fitness-grade metrics, while the 10-bit DAC drives a piezo buzzer for haptic alerts. Six SERCOM channels support a BLE module over UART and an SPI display, with the remaining channels free for I2C sensors. The -40C to +105C range accommodates skin-temperature sensors and outdoor exercise use cases without thermal throttling.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAMD20G17A-ANT — 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 | ATSAMD20G17A-AN | ATSAMD20G17A-AU | ATSAMD20G17A-AUT | ATSAMD20G18A-ANT | ATSAMD20G16B-ANT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) |
| 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 Size | 128 KB | 128 KB | 128 KB | 128 KB | 256 KB (+100%) | 64 KB (-50%) |
| SRAM Size | 16 KB | 16 KB | 16 KB | 16 KB | 32 KB (+100%) | 8 KB (-50%) |
| Operating Temperature | -40C to +105C (industrial) | -40C to +105C | -40C to +85C (commercial) | -40C to +85C (commercial) | -40C to +105C | -40C to +105C |
| Packaging Media | Tape & Reel | Tray | Tray | Tape & Reel | Tape & Reel | Tape & Reel |
Bảo phân biệt quan trọng
- Largest Flash in the 48-TQFP D20 family at this price point (vsATSAMD20G16B-ANT)
- Industrial temperature grade up to +105C (vsATSAMD20G17A-AU)
- Tape-and-reel packaging for high-volume SMT (vsATSAMD20G17A-AN)
Ghi chú thiết kế
Place a 100nF X7R ceramic decoupling capacitor within 3 mm of each VDD/VDDIO pin and a bulk 4.7uF X5R capacitor on the main 3.3V rail. Estimated: at 48MHz active current of approximately 7 mA plus burst ADC and SERCOM activity, the supply impedance must stay below 0.1 ohm through 100 MHz to avoid logic-level noise. A common pitfall is omitting the bulk capacitor - the SAM D20's internal regulator can ring under load steps and reset the device.
Route the SWDIO/SWCLK debug pins to a 2x5 0.05-inch header or Tag-Connect footprint even in production - in-field firmware updates without debug access are impossible. The SAM D20's 48-pin TQFP has limited debug pin remapping, so dedicating PA30 (SWDIO) and PA31 (SWCLK) at the schematic stage is recommended. Keep SWD traces under 50 mm and avoid routing near analog ADC inputs to prevent capacitive crosstalk on debug edges.
Do not exceed 3.63V on VDD - the SAM D20's on-chip flash programming charge pump will damage the device above the absolute maximum. Use a low-ESR ceramic on VDDIN and avoid tantalum capacitors which can inrush-damage the internal regulator during hot-plug events. Also note that migrating firmware from ATSAM Cortex-M0+ parts to ATSAMD20E variants requires re-checking pin-mux tables since the smaller package variant omits several SERCOM pads.
Thông tin tuân thủ
Green, lead-free, halogen-free per Mouser product description. AEC-Q100 not applicable - this is a general-purpose MCU not qualified to automotive stress standards; for automotive, consider SAM D20 AEC-Q100 variants or SAM DA/DB automotive families.
