Microchip Technology ATSAMD21G18A-AF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.34 | $4.34 |
| 15+ | $4.20 | $63.00 |
| 25+ | $4.11 | $102.75 |
| 50+ | $3.88 | $194.00 |
| 100+ | $3.43 | $343.00 |
| N+ | $0.69 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | SAM D21G, Functional Safety (FuSa) |
| Packaging | Tray | |
| Core Processor | ARM® Cortex®-M0+ |
| Core Size | 32-Bit Single-Core |
| Speed | 48MHz |
| Connectivity | I2C, LINbus, SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT |
| Number of I/O | 38 |
| Program Memory Size | 256KB (256K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 32K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.62V ~ 3.6V |
| Data Converters | A/D 14x12b; D/A 1x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | Automotive |
| Qualification AEC | AEC-Q100 |
| Mounting Type | Surface Mount |
| Supplier Device Package | 48-TQFP (7x7) |
| Package / Case | 48-TQFP |
| ROHS |  |
The Microchip ATSAMD21G18A-AF is an ARM Cortex-M0+ MCU in a 48-TQFP package. Running at 48MHz with 256KB flash and 32KB RAM, it operates from 1.62V to 3.6V and supports -40°C to 125°C. Features include DMA, I2S, PWM, brown-out detection, and WDT, making it versatile for industrial and automotive applications.
- Wide temperature range (-40°C to 125°C): Suitable for automotive and industrial.
- I2S interface: Enables direct audio codec connection.
- Low voltage operation (1.62V): Extends battery life.
- 48-TQFP package: Good pin count for peripheral-rich designs.
Automotive Interior Lighting
The 125°C rating allows placement near hot LED drivers, while PWM controls color and brightness.
Industrial IoT Gateways
Cortex-M0+ at 48MHz handles protocol stacks, and DMA offloads UART/SPI traffic.
Audio Processing Modules
I2S interface connects directly to codecs for voice prompts in kiosks and vending machines.
Smart Sensors
32KB RAM buffers sensor data, and the wide temperature range supports outdoor installations.
Portable Data Loggers
Low-power sleep modes and 1.62V operation extend battery life in remote monitoring.
Human-Machine Interfaces
With 256KB flash, it can store graphics assets for small TFT displays.
- Q: What core does the ATSAMD21G18A-AF use?
- A: It is based on the ARM Cortex-M0+ processor running at 48MHz.
- Q: What is the temperature range?
- A: It operates from -40°C to 125°C, suitable for harsh environments.
- Q: How much flash and RAM does it have?
- A: It provides 256KB flash and 32KB RAM.
- Q: Does it support audio interfaces?
- A: Yes, it includes an I2S peripheral for digital audio.
ATSAMD21G18A-AF.pdf
- Q: What core does the ATSAMD21G18A-AF use?
- A: It is based on the ARM Cortex-M0+ processor running at 48MHz.
- Q: What is the temperature range?
- A: It operates from -40°C to 125°C, suitable for harsh environments.
- Q: How much flash and RAM does it have?
- A: It provides 256KB flash and 32KB RAM.
- Q: Does it support audio interfaces?
- A: Yes, it includes an I2S peripheral for digital audio.
