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ATSAML22N17A-AUT
Microchip Technology
IC MCU 32BIT 128KB FLASH 100TQFP
2497 Pcs New Original In Stock
ARM® Cortex®-M0+ SAM L22N Microcontroller IC 32-Bit Single-Core 32MHz 128KB (128K x 8) FLASH 100-TQFP (14x14)
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*Quantity
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Minimum 1
5.0 / 5.0
- (399 Ratings)
ATSAML22N17A-AUT
Product Overview
1302042
DiGi Electronics Part Number
ATSAML22N17A-AUT-DGManufacturer
Microchip Technology
ATSAML22N17A-AUT
Description
IC MCU 32BIT 128KB FLASH 100TQFPInventory
2497 Pcs New Original In Stock
ARM® Cortex®-M0+ SAM L22N Microcontroller IC 32-Bit Single-Core 32MHz 128KB (128K x 8) FLASH 100-TQFP (14x14)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
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ATSAML22N17A-AUT Technical Specifications
Category
Embedded, Microcontrollers
Packaging
-
Series
SAM L22N
Product Status
Active
DiGi-Electronics Programmable
Not Verified
Core Processor
ARM® Cortex®-M0+
Core Size
32-Bit Single-Core
Speed
32MHz
Connectivity
I2C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
Number of I/O
82
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
EEPROM Size
-
RAM Size
16K x 8
Voltage - Supply (Vcc/Vdd)
1.62V ~ 3.63V
Data Converters
A/D 20x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Supplier Device Package
100-TQFP (14x14)
Package / Case
100-TQFP
Base Product Number
ATSAML22
Datasheet & Documents
HTML Datasheet
ATSAML22N17A-AUT-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
5A992C
HTSUS
8542.31.0001
Additional Information
Other Names
1611-ATSAML22N17A-AUTDKR-DG
1611-ATSAML22N17A-AUTCT-DG
ATSAML22N17A-AUTCT
1611-ATSAML22N17A-AUTCT
1611-ATSAML22N17A-AUTCTINACTIVE
1611-ATSAML22N17A-AUTTR
ATSAML22N17A-AUTTR
ATSAML22N17A-AUTDKR
1611-ATSAML22N17A-AUTTR-DG
1611-ATSAML22N17A-AUTTRINACTIVE
1611-ATSAML22N17A-AUTDKR
1611-ATSAML22N17A-AUTDKRINACTIVE
Standard Package
1,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
追跡システムが便利で、商品の到着まで安心して待つことができました。
de desembre 02, 2025
DiGi Electronics ensures I get value for every dollar spent.
de desembre 02, 2025
The support team offers detailed guidance and responds faster than industry average.
de desembre 02, 2025
I highly recommend DiGi Electronics for their excellent support and tracking services.
de desembre 02, 2025
Their inventory readiness alleviates the stress of last-minute needs.
de desembre 02, 2025
DiGi Electronics continuously improves their packaging, making sure that each delivery is intact and safe.
de desembre 02, 2025
Their electronic devices are both innovative and reliable.
de desembre 02, 2025
Their quick response and shipping really helped me meet my tight deadline.
de desembre 02, 2025
I received immediate assistance when I used the contact form, which was very efficient.
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Frequently Asked Questions (FAQ)
What are the key design considerations when replacing an ATSAML22N17A-AUT with a competing ARM Cortex-M0+ MCU like the EFM32PG12B500F1024GL125 in low-power applications?
When considering a replacement for the ATSAML22N17A-AUT with the EFM32PG12B500F1024GL125, assess active and sleep mode power consumption under similar peripheral loads. The ATSAML22N17A-AUT excels in ultra-low power with its Event System+ and autonomous peripherals, which reduce CPU wake-ups. The EFM32 offers higher flash and RAM but may consume more in deep sleep due to different peripheral architecture. Verify LCD, USB, and DMA compatibility, and revalidate firmware timing—especially if leveraging low-power modes for battery operation. Always compare brown-out reset hysteresis and temperature stability for mission-critical designs.
How can I mitigate PCB layout risks when integrating the ATSAML22N17A-AUT in a high-noise industrial environment with frequent EMI events?
To reduce EMI susceptibility in industrial layouts using the ATSAML22N17A-AUT, dedicate a ground plane beneath the 100-TQFP package and minimize trace lengths for high-impedance nodes like the internal oscillator inputs. Use local decoupling with 100nF ceramic capacitors at each VDD pair and add a bulk 4.7μF cap near the supply entry. Shield sensitive analog traces (e.g., ADC channels) and leverage the MCU’s internal oscillator to avoid external crystal resonance issues. Enable the WDT and brown-out reset in firmware to recover from transient upsets, and consider filtering on reset and I/O lines exposed to external connectors.
What are the reliability risks of operating the ATSAML22N17A-AUT near the upper limit of its 85°C ambient temperature range with sustained peripheral load?
Operating the ATSAML22N17A-AUT near 85°C with continuous peripheral usage (e.g., LCD driver and ADC running at 32MHz) increases junction temperature, potentially exceeding safe margins if board thermal resistance is high. Use the thermal resistance (Junction-to-Ambient ~30°C/W for 100-TQFP) to estimate die temperature and ensure it stays below 110°C. Derate performance if needed—lower clock speed or duty-cycle peripherals. Monitor long-term data retention in flash and avoid prolonged exposure to peak temperature to prevent accelerated aging. Consider conformal coating to mitigate moisture-induced leakage currents in hot, humid environments.
Can the ATSAML22N17A-AUT reliably drive a segmented LCD without external buffers, and what design trade-offs should be evaluated?
Yes, the ATSAML22N17A-AUT supports direct LCD drive with integrated LCD controller and charge pump for up to 4 multiplex levels. However, limit segment count and ensure load current per pin stays within 4mA to avoid voltage droop. Capacitive loading affects contrast uniformity—simulate drive strength with your display’s RC characteristics. For large or low-contrast displays, external buffers may still be needed. Balance power savings from internal driving against reliability: prolonged LCD biasing at temperature extremes can accelerate pixel degradation. Use duty-cycling and disable LCD bias when inactive to extend display life.
What are the startup timing risks with the ATSAML22N17A-AUT’s internal oscillator in applications requiring fast wake-up from standby mode?
The ATSAML22N17A-AUT’s internal RC oscillator enables fast wake-up from standby (typically <4μs), but initial frequency accuracy may vary ±10% before calibration. This can affect time-critical communication (e.g., USB or UART) if the application resumes before oscillator stabilization or calibration routines execute. To mitigate, delay peripheral initialization until the DFLL48M is locked to a reference, or use an external crystal during startup if timing precision is critical. Alternatively, use standby modes that retain oscillator state. Avoid time-sensitive operations immediately after wake-up unless oscillator trimming data is stored and reapplied in firmware.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
ATSAML22N17A-AUT CAD Models
Microchip Technology ATSAML22N17A-AUT PCB symbols & footprints
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