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Microchip Technology ATSAML21J17B-AUT Microcontrollers

IC MCU 32BIT 128KB FLASH 64TQFP

31,900 ActiveMicrochip TechnologyATSAML21J64-TQFP$11.19
ATSAML21J17B-AUT 64-TQFP package illustration

Same model may have multiple batches, images only for reference.

ATSAML21J17B-AUT
Part Number (MPN)
ATSAML21J17B-AUT
Base Model
Detailed Description
IC MCU 32BIT 128KB FLASH 64TQFP
Package
64-TQFP
Lifecycle Status
Active
Datasheet
PDF ATSAML21J17B-AUT Datasheet
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Ordering Code Family

ATSAML21J groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

6 ordering variants listed on the family page.

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Technical Specifications

Microchip Technology ATSAML21J17B-AUT Microcontrollers technical specifications.

General

RAM Size
16K x 8
RoHS
Yes
Number of Pins
64
Package / Case
64-TQFP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
1.62V ~ 3.63V
Lifecycle Status
Active
Peripherals
DMA, POR, PWM, WDT
Number of I/O
51

Alternate Parts Comparison (ATSAML21J17B-AUT vs ATSAML21J17B vs ATSAML21J16B-MUT vs ATSAML21J18B-AUT)

Side-by-side technical parameter comparison of related primary models in this product family.

This PartAlternate PartsAlternate PartsAlternate Parts
Lifecycle StatusActiveIn ProductionActiveActive
Package / Case64-TQFP--64-VFQFN Exposed Pad64-TQFP
Mounting TypeSurface Mount--Surface MountSurface Mount
Operating Temperature-40°C ~ 85°C (TA)---40°C ~ 85°C (TA)-40°C ~ 85°C (TA)
Supply Voltage1.62V ~ 3.63V--1.62V ~ 3.63V1.62V ~ 3.63V
Number of Pins64--6464
Core ProcessorARM® Cortex®-M0+--ARM® Cortex®-M0+ARM® Cortex®-M0+
Core Size32-Bit Single-Core--32-Bit Single-Core32-Bit Single-Core
RAM Size16K x 8--8K x 832K x 8
RoHSYes--YesYes
ConnectivityI²C, LINbus, SCI, SPI, UART/USART, USB--I²C, LINbus, SCI, SPI, UART/USART, USBI²C, LINbus, SCI, SPI, UART/USART, USB
CPU TypeCortex-M0+--Cortex-M0+Cortex-M0+
Action

Cross Reference

Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .

Suggested replacements

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Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.