SAM3 Cortex-M3 Microcontrollers

Microchip Technology SAM3 Cortex®-M3 Flash Microcontrollers combine high-speed USB and an integrated transceiver for fast up/downloading of data, robust EMI tolerance, and plug-and-play high-speed serial interconnectivity. Microchip SAM3 MCUs feature a 96MHz maximum operating frequency and a high data-bandwidth architecture based on a 5-layer bus matrix with 22 DMA channels and distributed memory. The SAM3 is touch-ready and offers native support for Microchip QTouch® technology for easy implementation of buttons, sliders, and wheels in your application. These Microchip MCUs are ideal for applications with intensive communications requirements, including high-speed gateways in industrial, medical, data processing, and consumer applications.

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Qty. RoHS ECAD Model Series
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Program Memory Size
Data Bus Width
ADC Resolution
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Number of I/Os
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Supply Voltage - Min
Supply Voltage - Max
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Microchip Technology ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3
Datasheet
178In Stock
Min.: 1
Mult.: 1

SAM3U SMD/SMT LQFP-100 ARM Cortex M3 256 kB 32 bit 12 bit 96 MHz 57 I/O 52 kB 1.62 V 1.95 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3
Datasheet
71In Stock
Min.: 1
Mult.: 1

SAM3U SMD/SMT LFBGA-144 ARM Cortex M3 256 kB 32 bit 12 bit 96 MHz 96 I/O 52 kB 1.62 V 1.95 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU LQFP, Grn, IT, MRL a
Datasheet
126In Stock
Min.: 1
Mult.: 1

SAM3N SMD/SMT LQFP-48 ARM Cortex M3 32 kB 32 bit 10 bit 48 MHz 34 I/O 8 kB 1.8 V 3.6 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU LQFP, Grn, IT, MRL B
Datasheet
109In Stock
Min.: 1
Mult.: 1

SAM3N SMD/SMT LQFP-48 ARM Cortex M3 64 kB 32 bit 10 bit 48 MHz 32 I/O 4 kB 1.62 V 1.95 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU MRL A 128K Flash 32K SRAM Ind Temp
Datasheet
254In Stock
Min.: 1
Mult.: 1

SAM3S SMD/SMT QFP-64 ARM Cortex M3 128 kB 32 bit 12 bit 64 MHz 47 I/O 32 kB 1.62 V 1.9 V - 40 C + 85 C Tray

Microchip Technology ARM Microcontrollers - MCU MRL A 128K Flash 32K SRAM Ind Temp
Datasheet
146In Stock
Min.: 1
Mult.: 1

SAM3S SMD/SMT QFN-64 ARM Cortex M3 128 kB 32 bit 12 bit 64 MHz 47 I/O 32 kB 1.62 V 1.9 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU MRL A 128K Flash 32K SRAM Ind Temp
Datasheet
1In Stock
Min.: 1
Mult.: 1

SAM3S SMD/SMT QFP-100 ARM Cortex M3 128 kB 32 bit 12 bit 64 MHz 79 I/O 32 kB 1.62 V 1.9 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU MRL A 256K Flash 48K SRAM Ind Temp
Datasheet
12In Stock
Min.: 1
Mult.: 1

SAM3S SMD/SMT QFP-100 ARM Cortex M3 256 kB 32 bit 12 bit 64 MHz 79 I/O 48 kB 1.62 V 1.9 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU LQFP,Grn, IT, MRL A
Datasheet
90Expected 07/09/2026
Min.: 1
Mult.: 1

SAM3S SMD/SMT QFP-100 ARM Cortex M3 512 kB 32 bit 12 bit 64 MHz 79 I/O 64 kB 1.62 V 1.9 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU LQFP, Grn, IT, MRL B
Datasheet
320Expected 07/08/2026
Min.: 1
Mult.: 1

SAM3N SMD/SMT LQFP-64 ARM Cortex M3 64 kB 32 bit 10 bit 48 MHz 47 I/O 4 kB 1.62 V 1.95 V - 40 C + 85 C Tray

Microchip Technology ARM Microcontrollers - MCU QFN,GREEN,IND TEMP,MRL A
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

SAM3N SMD/SMT QFN-48 ARM Cortex M3 16 kB 32 bit 10 bit 48 MHz 34 I/O 4 kB 1.8 V 1.8 V - 40 C + 85 C Tray

Microchip Technology ARM Microcontrollers - MCU QFN,GREEN,IND TEMP,MRL A
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

SAM3N SMD/SMT QFN-64 ARM Cortex M3 16 kB 32 bit 10 bit 48 MHz 32 I/O 4 kB 1.62 V 1.95 V - 40 C + 85 C Tray

Microchip Technology ARM Microcontrollers - MCU QFN,Grn, IT, MRL A
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

SAM3N SMD/SMT QFN-48 ARM Cortex M3 32 kB 32 bit 10 bit 48 MHz 34 I/O 8 kB 1.8 V 1.8 V - 40 C + 85 C Tray

Microchip Technology ARM Microcontrollers - MCU QFN,Grn, IT, MRL A
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

SAM3N SMD/SMT QFN-64 ARM Cortex M3 32 kB 32 bit 10 bit 48 MHz 32 I/O 4 kB 1.62 V 1.95 V - 40 C + 85 C Tray

Microchip Technology ARM Microcontrollers - MCU QFN,Grn, IT, MRL B
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

SAM3N SMD/SMT QFN-64 ARM Cortex M3 64 kB 32 bit 10 bit 48 MHz 32 I/O 4 kB 1.62 V 1.95 V - 40 C + 85 C Tray

Microchip Technology ARM Microcontrollers - MCU QFN,Grn, IT, MRL A
Datasheet
Lead-Time 9 Weeks
Min.: 1
Mult.: 1

SAM3S SMD/SMT QFN-64 ARM Cortex M3 512 kB 32 bit 12 bit 64 MHz 47 I/O 64 kB 1.62 V 1.9 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU BGA,Grn, IT, MRL A
Datasheet
Non-Stocked Lead-Time 11 Weeks
Min.: 260
Mult.: 260

SAM3S SMD/SMT TFBGA-100 ARM Cortex M3 512 kB 32 bit 12 bit 64 MHz 79 I/O 64 kB 1.62 V 1.9 V - 40 C + 85 C Tray

Microchip Technology ARM Microcontrollers - MCU QFN,Grn, IT, MRL A
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

SAM3S SMD/SMT QFN-64 ARM Cortex M3 512 kB 32 bit 12 bit 64 MHz 47 I/O 64 kB 1.62 V 1.9 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU BGA,Grn, IT, MRL A
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 260
Mult.: 260

SAM3S SMD/SMT TFBGA-100 ARM Cortex M3 512 kB 32 bit 12 bit 64 MHz 79 I/O 64 kB 1.62 V 1.9 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU LQFP, Grn, IT, MRL B
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 120
Mult.: 60

SAM3U SMD/SMT LQFP-144 ARM Cortex M3 64 kB 32 bit 12 bit 96 MHz 96 I/O 20 kB 1.62 V 1.95 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU LFBGA, Grn, IT MRL B
Datasheet
Non-Stocked Lead-Time 11 Weeks
Min.: 184
Mult.: 184

SAM3U SMD/SMT LFBGA-144 ARM Cortex M3 64 kB 32 bit 12 bit 96 MHz 96 I/O 20 kB 1.62 V 1.95 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3
Datasheet
Lead-Time 10 Weeks
Min.: 1
Mult.: 1

SAM3U SMD/SMT TFBGA-100 ARM Cortex M3 256 kB 32 bit 96 MHz 57 I/O 52 kB 1.62 V 1.95 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU BGA100, GREEN, IND TEMP, MRL A
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 1
Mult.: 1

SAM3X SMD/SMT LFBGA-100 ARM Cortex M3 256 kB 32 bit 12 bit 84 MHz 103 I/O 64 kB 1.62 V 1.95 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU BGA144,GREEN IND TEMP, MRL A
Datasheet
Non-Stocked Lead-Time 11 Weeks
Min.: 184
Mult.: 184

SAM3X SMD/SMT LFBGA-144 ARM Cortex M3 256 kB 32 bit 12 bit 84 MHz 103 I/O 64 kB 1.62 V 1.95 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU LQFP, Green, IND TEMP, MRL a
Datasheet
Lead-Time 14 Weeks
Min.: 1
Mult.: 1

SAM3N SMD/SMT LQFP-48 ARM Cortex M3 16 kB 32 bit 10 bit 48 MHz 34 I/O 4 kB 1.8 V 1.8 V - 40 C + 85 C Tray