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Microchip Technology ATSAMC21J18A-MUT Microcontrollers

IC MCU 32BIT 256KB FLASH 64QFN

3,100 ActiveMicrochip TechnologyATSAMC21J64-VFQFN Exposed Pad$10.72
ATSAMC21J18A-MUT 64-VFQFN Exposed Pad package illustration

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

ATSAMC21J18A-MUT
Part Number (MPN)
ATSAMC21J18A-MUT
Base Model
Detailed Description
IC MCU 32BIT 256KB FLASH 64QFN
Package
64-VFQFN Exposed Pad
Lifecycle Status
Active
Datasheet
PDF ATSAMC21J18A-MUT Datasheet
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Ordering Code Family

ATSAMC21J groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

2 ordering variants listed on the family page.

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Technical Specifications

Microchip Technology ATSAMC21J18A-MUT Microcontrollers technical specifications.

General

RAM Size
32K x 8
RoHS
Yes
Number of Pins
64
Package / Case
64-VFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.7V ~ 5.5V
Lifecycle Status
Active
Peripherals
Brown-out Detect/Reset, DMA, POR, WDT
Number of I/O
52

Related Parts Comparison (ATSAMC21J18A-MUT vs ATSAMC21J17A-AUT vs ATSAMC21J18A-AUT vs ATSAMC21J17A-MNT)

Side-by-side specifications of related catalog parts.

Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.

This PartRelated PartRelated PartRelated Part
Package / Case64-VFQFN Exposed Pad64-TQFP64-TQFP64-VFQFN Exposed Pad
Mounting TypeSurface MountSurface MountSurface MountSurface Mount
Operating Temperature-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 105°C (TA)
Supply Voltage2.7V ~ 5.5V2.7V ~ 5.5V2.7V ~ 5.5V2.7V ~ 5.5V
Number of Pins64646464
Core ProcessorARM® Cortex®-M0+ARM® Cortex®-M0+ARM® Cortex®-M0+ARM® Cortex®-M0+
Core Size32-Bit Single-Core32-Bit Single-Core32-Bit Single-Core32-Bit Single-Core
RAM Size32K x 816K x 832K x 816K x 8
RoHSYesYesYesYes
Lifecycle StatusActiveActiveActiveActive
ConnectivityCANbus, I²C, LINbus, SPI, UART/USARTCANbus, I²C, LINbus, SPI, UART/USARTCANbus, I²C, LINbus, SPI, UART/USARTCANbus, I²C, LINbus, SPI, UART/USART
CPU TypeCortex-M0+Cortex-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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