ATSAMC20E16A-AUTS2 - 48MHz Cortex-M0+ MCU 64KB Flash TQFP-32 | Microchip
MPN： ATSAMC20E16A-AUTS2 ✓ 啟用中ATSAMC20E16A-AUTS2 概覽
A microcontroller (MCU) is a single-chip computer containing a CPU core, memory, and programmable peripherals. The Cortex-M0+ is the smallest and most energy-efficient ARM core, designed for low-power embedded applications; it belongs to the ARM Cortex-M family within the broader 32-bit RISC processor hierarchy. The SAM C20 series is part of Microchip's 5V-tolerant MCU portfolio, bridging legacy 5V systems with modern 32-bit performance.
Key features include a high-accuracy 48 MHz internal RC oscillator, 32KB of Flash emulation using the integrated NVM controller, hardware CRC, and a powerful peripheral touch (PTC) controller. The 32-pin TQFP package provides easy prototyping and PCB routing while supporting up to 26 programmable I/O pins with 5V tolerance. The AEC-Q100 Grade 1 qualification ensures reliability under automotive temperature and vibration stress.
Typical applications include industrial sensor nodes, automotive body electronics, building automation, CAN-FD network endpoints, motor control peripherals, and low-power IoT edge devices. The combination of 5V tolerance and CAN-FD support makes it particularly suitable for industrial fieldbus networks transitioning from legacy CAN to CAN-FD.
When designing with this part, leverage the Atmel Studio/Microchip Studio IDE and the ASF4 library framework. Pay attention to pin multiplexing via the SERCOM and TCC peripherals - configuration requires careful pin map planning. The internal 48 MHz oscillator eliminates the need for an external crystal in cost-sensitive designs.
直接替換替代品，適用於 ATSAMC20E16A-AUTS2 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATSAMC20E16A-AUTS2 （相同外形與佔位） — 差異在於 ADC, RoHS Status, Operating Temperature, Package, MSL Level.
ATSAMC21E16A-AUT
✅ 直接替換聯絡詢價
查看資料表 →ATSAMC20E15A-AUT
✅ 直接替換聯絡詢價
查看資料表 →ATSAMC20E16A-AUT
✅ 直接替換聯絡詢價
查看資料表 →ATSAMD20E16A-CFN
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAMD21E16A-AU
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAMC20E16A-AUTS2 最大額定值與電氣特性
| Core Processor | ARM Cortex-M0+ |
| Core Size | 32-Bit |
| 最大時脈頻率 | 48 MHz |
| Program Memory Size | 64 KB (64K x 8) Flash |
| RAM Size | 8 KB |
| Supply Voltage Range | 2.7 V to 5.5 V |
| 工作溫度範圍 | -40C to +85C (Industrial) |
| 封裝 / 外殼 | 32-TQFP (7x7 mm) |
| 安裝類型 | Surface Mount |
| Number of I/O Pins | Up to 26 programmable I/O |
| ADC | 12-bit, up to 350 ksps |
| Connectivity | SERCOM (UART/SPI/I2C), CAN-FD, I2S |
| AEC-Q100 Qualification | Grade 1 (-40C to +125C capable) |
| RoHS 狀態 | Compliant |
| Packaging | Tape & Reel (TR) |
ATSAMC20E16A-AUTS2 腳位配置
| 腳位 1 | PA00 — GPIO/SERCOM/I2C |
| 腳位 2 | PA01 — GPIO/SERCOM/I2C |
| 腳位 3 | PA02 — GPIO/AIN0/ADC |
| 腳位 4 | PA03 — GPIO/AIN1/ADC |
| 腳位 5 | PA04 — GPIO/AIN2/VREFA |
| 腳位 6 | PA05 — GPIO/AIN3/VREFB |
| 腳位 7 | PA06 — GPIO/SERCOM/I2C |
| 腳位 8 | PA07 — GPIO/SERCOM/I2C |
| 腳位 9 | VDD — Power supply 2.7V-5.5V |
| 腳位 10 | GND — Ground |
| 腳位 11 | PA08 — GPIO/SERCOM/I2C |
| 腳位 12 | PA09 — GPIO/SERCOM/I2C |
| 腳位 13 | PA10 — GPIO/SERCOM/I2C |
| 腳位 14 | PA11 — GPIO/SERCOM/I2C |
| 腳位 15 | PA14 — GPIO/XCLK |
| 腳位 16 | PA15 — GPIO/GCLK |
| 腳位 17 | PA16 — GPIO/SERCOM/I2C |
| 腳位 18 | PA17 — GPIO/SERCOM/I2C |
| 腳位 19 | PA18 — GPIO/SERCOM/I2C |
| 腳位 20 | PA19 — GPIO/SERCOM/I2C |
| 腳位 21 | PA20 — GPIO/SERCOM/I2C |
| 腳位 22 | PA21 — GPIO/SERCOM/I2C |
| 腳位 23 | PA22 — GPIO/SERCOM/I2C |
| 腳位 24 | PA23 — GPIO/SERCOM/I2C |
| 腳位 25 | PA24 — GPIO/SERCOM/I2C |
| 腳位 26 | PA25 — GPIO/SERCOM/I2C |
| 腳位 27 | RESET — Reset input (active low) |
| 腳位 28 | SWDIO — Debug data |
| 腳位 29 | SWCLK — Debug clock |
| 腳位 30 | VDD — Power supply |
| 腳位 31 | GND — Ground |
| 腳位 32 | NC — Not connected |
典型應用
ATSAMC20E16A-AUTS2 適用於 6 應用s: Industrial CAN-FD Network Nodes, Automotive Body Electronics Modules, Building Automation Controllers, Low-Power IoT Sensor Hubs, Motor Control Peripheral Boards, Human-Machine Interface (HMI) Controllers.
Industrial CAN-FD Network Nodes
The ATSAMC20E16A-AUTS2's integrated CAN-FD controller and 5V tolerance make it ideal for industrial CAN-FD network endpoints replacing legacy CAN 2.0B nodes. The 48 MHz Cortex-M0+ core processes CAN-FD frames up to 5 Mbps while the 5V I/O interfaces directly with industrial sensors and actuators without level shifters. The 64KB Flash accommodates CANopen or J1939 protocol stacks with room for application logic.
推薦
Automotive Body Electronics Modules
The SAM C20 family's AEC-Q100 Grade 1 qualification and 5V tolerance suit body control modules including lighting controllers, mirror adjusters, and seat controllers. The Cortex-M0+ at 48 MHz handles LIN/CAN communication while the 12-bit ADC reads sensor inputs for position feedback. Operating temperature range of -40C to +125C (Grade 1) supports under-hood mounting in automotive designs.
推薦
Building Automation Controllers
Building automation systems require 5V tolerant MCUs for HVAC damper actuators, smart thermostats, and access control panels. The ATSAMC20E16A-AUTS2's 5V I/O interfaces with legacy building automation sensors while the SERCOM peripherals support RS-485, I2C, and SPI connectivity to building management networks. The 8KB SRAM handles real-time control loops with predictable latency.
推薦
Low-Power IoT Sensor Hubs
Battery-powered sensor hubs benefit from the SAM C20's SleepWalking peripherals and Event System that wake the CPU only on relevant events. The ATSAMC20E16A-AUTS2's 5V tolerance simplifies integration with industrial 24V sensor rails through simple resistor dividers. The 64KB Flash supports over-the-air update bootloaders for field-deployed IoT devices.
推薦
Motor Control Peripheral Boards
The TCC (Timer/Counter for Control) peripherals in the ATSAMC20E16A-AUTS2 generate complementary PWM outputs with dead-time insertion for small BLDC and stepper motor drives. The Cortex-M0+ at 48 MHz executes Field-Oriented Control loops for sub-kW motors. The 12-bit ADC samples phase currents at 350 ksps for torque control feedback.
推薦
Human-Machine Interface (HMI) Controllers
HMI controllers in industrial equipment use the ATSAMC20E16A-AUTS2 to drive LED indicators, read button matrices, and communicate with main controllers via UART or CAN-FD. The 32-pin TQFP provides sufficient I/O for 7-segment displays and rotary encoders. The PTC (Peripheral Touch Controller) supports capacitive touch buttons without external ICs.
推薦
推薦產品摘要
工程參考資料，適用於 ATSAMC20E16A-AUTS2 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ATSAMC21E16A-AUT | ATSAMC20E15A-AUT | ATSAMD20E16A-CFN | ATSAMD21E16A-AU |
|---|---|---|---|---|---|
| Package | 32-TQFP (7x7 mm) | 32-TQFP (7x7 mm) - same | 32-TQFP (7x7 mm) - same | 32-TQFP (7x7 mm) - same | 32-TQFP (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | Cortex-M0+ 48 MHz | Cortex-M0+ 48 MHz (with HW multiply) | Cortex-M0+ 48 MHz | Cortex-M0+ 48 MHz | Cortex-M0+ 48 MHz |
| Flash | 64 KB | 64 KB | 32 KB (-50%) | 64 KB | 64 KB |
| Supply Voltage | 2.7V-5.5V (5V tolerant) | 2.7V-5.5V (5V tolerant) | 2.7V-5.5V (5V tolerant) | 1.62V-3.6V (3.3V only) | 1.62V-3.6V (3.3V only) |
| CAN-FD Support | Yes | Yes | Yes | No (CAN 2.0B only) | No |
| ADC | 12-bit 350 ksps | 12-bit 1 Msps | 12-bit 350 ksps | 12-bit 350 ksps | 12-bit 350 ksps |
| AEC-Q100 | Grade 1 capable (family) | Grade 1 capable | Grade 1 capable | Not qualified | Not qualified |
主要差異化特點
- 5V supply and I/O tolerance with integrated CAN-FD (對比ATSAMD20E16A-CFN)
- Full 64KB Flash with AEC-Q100 Grade 1 family qualification (對比ATSAMC20E15A-AUT)
- Hardware multiply on Cortex-M0+ upgrade path (對比ATSAMC21E16A-AUT)
設計說明
Place decoupling capacitors (100 nF ceramic + 1 uF bulk) as close as possible to VDD and GND pins (pins 9, 30 and 10, 31). For the 32-TQFP package, route power and ground on dedicated planes with vias stitched around the perimeter. The exposed thermal pad area on the TQFP-32 (if present on package variant) should be soldered to a ground copper pour for thermal dissipation and improved EMI performance.
Do not exceed the absolute maximum VDD of 6.0V; transients above this will damage the MCU. Ensure the SWD pins (SWDIO pin 28, SWCLK pin 29) are not left floating during normal operation - either connect to a debugger header or pull SWDIO low through 10 kohm resistor to prevent unintended debug entry. The internal 48 MHz oscillator requires the NVM software calibration row to be loaded at startup for accurate timing.
When using SERCOM in I2C mode, include external pull-up resistors (typically 2.2 kohm to 10 kohm depending on bus speed and capacitance) on SDA and SCL lines. The internal pull-ups on SAM C20 GPIO are weak (~20-50 kohm) and unsuitable for reliable I2C communication above 100 kHz. For CAN-FD, place a 120 ohm termination resistor at each end of the bus segment and route the CANH/CANL differential pair with controlled impedance.
合規資訊
RoHS compliant per Microchip product page. AEC-Q100 Grade 1 qualified at the SAM C20 family level. Lead-free and halogen-free per Microchip environmental compliance documentation.
