ATSAMC20E16A-AUTS2 - 48MHz Cortex-M0+ MCU 64KB Flash TQFP-32 | Microchip
料号： ATSAMC20E16A-AUTS2 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4 | $4.00 |
| 10 | $3.65 | $36.50 |
| 100 | $3.12 | $312.00 |
| 500 | $2.78 | $1,390.00 |
| 1,000 | $2.45 | $2,450.00 |
ATSAMC20E16A-AUTS2 概述
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.
直接替换替代料： ATSAMC20E16A-AUTS2 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ATSAMC20E16A-AUTS2 （相同外形与封装尺寸） ——差异在于 ADC, RoHS Status, Operating Temperature, Package, MSL Level.
快速对比工具——选择替代料号进行并排对比：
ATSAMC21E16A-AUT
✅ 直接替换✓ 有现货
$2.78 / 个
查看数据手册 →ATSAMC20E15A-AUT
✅ 直接替换✓ 有现货
$1.78 / 个
查看数据手册 →ATSAMC20E16A-AUT
✅ 直接替换✓ 有现货
$1.96 / 个
查看数据手册 →ATSAMD20E16A-CFN
✅ 直接替换📋 参考替代料（不在目录中）
ATSAMD21E16A-AU
✅ 直接替换📋 参考替代料（不在目录中）
ATSAMC20E16A-AUTS2 最大额定值与电气特性
| Core Processor | ARM Cortex-M0+ |
| Core Size | 32-Bit |
| 最大时钟频率 | 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 |
| 工作温度范围 | -40C to +85C (Industrial) |
| 封装 / 外壳 | 32-TQFP (7x7 mm) |
| 安装类型 | 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 状态 | Compliant |
| Packaging | Tape & Reel (TR) |
ATSAMC20E16A-AUTS2 引脚配置
| 引脚 1 | PA00 — GPIO/SERCOM/I2C |
| 引脚 2 | PA01 — GPIO/SERCOM/I2C |
| 引脚 3 | PA02 — GPIO/AIN0/ADC |
| 引脚 4 | PA03 — GPIO/AIN1/ADC |
| 引脚 5 | PA04 — GPIO/AIN2/VREFA |
| 引脚 6 | PA05 — GPIO/AIN3/VREFB |
| 引脚 7 | PA06 — GPIO/SERCOM/I2C |
| 引脚 8 | PA07 — GPIO/SERCOM/I2C |
| 引脚 9 | VDD — Power supply 2.7V-5.5V |
| 引脚 10 | GND — Ground |
| 引脚 11 | PA08 — GPIO/SERCOM/I2C |
| 引脚 12 | PA09 — GPIO/SERCOM/I2C |
| 引脚 13 | PA10 — GPIO/SERCOM/I2C |
| 引脚 14 | PA11 — GPIO/SERCOM/I2C |
| 引脚 15 | PA14 — GPIO/XCLK |
| 引脚 16 | PA15 — GPIO/GCLK |
| 引脚 17 | PA16 — GPIO/SERCOM/I2C |
| 引脚 18 | PA17 — GPIO/SERCOM/I2C |
| 引脚 19 | PA18 — GPIO/SERCOM/I2C |
| 引脚 20 | PA19 — GPIO/SERCOM/I2C |
| 引脚 21 | PA20 — GPIO/SERCOM/I2C |
| 引脚 22 | PA21 — GPIO/SERCOM/I2C |
| 引脚 23 | PA22 — GPIO/SERCOM/I2C |
| 引脚 24 | PA23 — GPIO/SERCOM/I2C |
| 引脚 25 | PA24 — GPIO/SERCOM/I2C |
| 引脚 26 | PA25 — GPIO/SERCOM/I2C |
| 引脚 27 | RESET — Reset input (active low) |
| 引脚 28 | SWDIO — Debug data |
| 引脚 29 | SWCLK — Debug clock |
| 引脚 30 | VDD — Power supply |
| 引脚 31 | GND — Ground |
| 引脚 32 | NC — Not connected |
典型应用
ATSAMC20E16A-AUTS2 适用于 6 应用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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： ATSAMC20E16A-AUTS2 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- 5V supply and I/O tolerance with integrated CAN-FD （对比 ATSAMD20E16A-CFN)
- Full 64KB Flash with AEC-Q100 Grade 1 family qualification （对比 ATSAMC20E15A-AUT)
- Hardware multiply on Cortex-M0+ upgrade path （对比 ATSAMC21E16A-AUT)
设计说明
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.
合规信息
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.
