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ATSAMD21G17A-AU

Name: ATSAMD21G17A-AU
Rating: 4.7 (12 reviews)

IC MCU 32BIT 128KB FLASH 48TQFP

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包 48-TQFP
資料表 ATSAMD21G17A-AU DataSheet
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規格

Supplier	Microchip Technology
Package	Tray
Series	SAM D21G, Functional Safety (FuSa)
ProductStatus	Active
CoreProcessor	ARM® Cortex®-M0+
CoreSize	32-Bit Single-Core
Speed	48MHz
Connectivity	I²C, LINbus, SPI, UART/USART, USB
Peripherals	Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
NumberofI/O	38
ProgramMemorySize	128KB (128K x 8)
ProgramMemoryType	FLASH
RAMSize	16K x 8
Voltage-Supply(Vcc/Vdd)	1.62V ~ 3.6V
DataConverters	A/D 14x12b; D/A 1x10b
OscillatorType	Internal
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	48-TQFP

概述

Description

ATSAMD21G17A-AU is a Microchip/Atmel SAM D21 family 32-bit MCU with an ARM Cortex-M0+ core running up to 48 MHz. It provides on‑chip flash and SRAM (sizes vary by variant), USB Full‑Speed device support, multiple SERCOM peripherals (SPI/I2C/UART), a 12‑bit ADC (with multiple channels), timers, DMAC, and an Event System for fast peripheral data transfers. It operates from a 1.6–3.6 V supply and supports low‑power sleep modes for energy efficiency. The -AU suffix denotes a specific package code used by Microchip (check the datasheet for exact pin count and package options). This MCU is suitable for embedded systems, IoT, USB peripherals, sensor nodes, and similar applications. Toolchain support includes MPLAB X, Microchip Studio, and Arduino core for SAM D21. For exact memory sizes and packaging, consult the datasheet.

Features

Here are the main features of the ATSAMD21G17A-AU (SAM D21 family):
- 32‑bit ARM Cortex‑M0+ core, up to 48 MHz
- Flash memory: up to 256 KB; SRAM: up to 32 KB
- USB: Full‑Speed USB device with on‑chip PHY
- SERCOM peripherals: up to six SERCOM modules for UART/I2C/SPI
- Analog: 12‑bit ADC with multiple channels; analog comparator
- Timers: multiple Timer/Counter (PWM) units and RTC
- Event System for peripheral-to-peripheral communication
- Power and sleep features: watchdog, brown‑out detector, multiple low‑power modes
- Clocking: flexible clock system with internal/external sources
- Operating voltage: typically 1.6–3.6 V
- Package: AU (32‑pin) package
- Debug: SWD/JTAG/trace capability for development
Note: exact memory sizes and peripheral counts can vary slightly by device revision.

Package

AU denotes a 32‑pin QFN package (QFN32), typically around 4.0 x 4.0 mm with 0.8 mm pitch.

Pinout

- Pin count: 32 pins (package code AU)
- Function: Microcontroller (Microchip/Atmel SAM D21 family) – 32-bit ARM Cortex-M0+ MCU with on-chip Flash and RAM, USB Full-Speed device, multiple SERCOM peripherals (USART/SPI/I2C), ADC, timers, and up to ~48 MHz operation. Typical memory: 64 KB Flash, 16 KB RAM, operating at 1.8–3.6 V.

Manufacturer

- Manufacturer: Microchip Technology Inc.
- What kind of company: A global semiconductor company based in the United States that designs and manufactures microcontrollers (including SAMD family like ATSAMD21G17A), memory, and analog ICs; publicly traded (NASDAQ: MCHP) and owns the Atmel line (acquired 2016).

Application

ATSAMD21G17A‑AU is a low‑power Cortex‑M0+ MCU with USB 2.0 device, SERCOM, 12‑bit ADC and PWM. Key applications include:
- USB-enabled peripherals (HID, CDC, mass storage bootloaders)
- IoT/sensor nodes and smart meters (low power, sleep modes)
- Wearables and portable devices
- Consumer electronics and home automation (remotes, hubs, switches)
- Data acquisition, logging and automation in industrial/applications
- Rapid prototyping and education boards (Arduino Zero family)

Equivalent

Equivalent products are other SAM D21 devices from Microchip with the same memory and peripherals in different packages. Pin-compatible options include the same silicon in alternate package codes (e.g., ATSAMD21G17A-MU). For exact substitutes, specify the desired package and memory requirements (flash/RAM); I can give a precise cross-reference.