SAM3U Series: 96 MHz Cortex M3 Flash MCU with High-Speed USB
![]() Atmel's SAM3U series is the world's first 32-bit ARM Cortex M3 Flash microcontroller with high-speed 480 Mbps USB + Phy.
High-Speed USB
The SAM3U is the first Cortex M3 microcontroller with high-speed USBand an integrated transceiver for fast up/downloading of data, robustEMI tolerance, and plug-and-play high-speed serial interconnectivity.
High Performance
Features a 96 MHz maximum operating frequency and a high data-bandwidtharchitecture based on a 5-layer bus matrix with 22 DMA channels anddistributed memory
Dual-Bank Flash
Provides safe in-application programming (IAP) including the boot program
1.62 to 3.6V Operation
True 1.8V±10% operation extends device operation when running from two AA alkaline batteries
Memory Protection Unit
Improves code protection and secures multi-application/task execution
High-End Analog
Features a differential input and programmable gain amplifier (PGA) on a 12-bit 1 Msps ADC
SAM3U-EK & Support Ecosystem
For rapid evaluation and code development. Industry-leading thirdparties provide a full range of dev tools, RTOS, middleware and supportservices to reduce time-to-market to a minimum.
For more details on the SAM3U-EK evaluation kit, click here to watch the video.
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| Device | Flash
(Kbytes) | SRAM
(Kbytes) | PIOs | MMC
Data
Bus
(bits) | USARTs | SPI | TWI | FWUP,
SHDN
Pins | External
Bus
Inte**ce | ADC | Package | | SAM3U4E | 2 x 128 | 52 | 96 | 8 | 4 | 5 | 2 | Yes | 8 or 16 bits,
4 chip selects,
24-bit address | 8-ch 12-bit
8-ch 10-bit | LQFP144
BGA144 | | SAM3U2E | 128 | 36 | 96 | 8 | 4 | 5 | 2 | Yes | 8 or 16 bits,
4 chip selects,
24-bit address | 8-ch 12-bit
8-ch 10-bit | LQFP144
BGA144 | | SAM3U1E | 64 | 20 | 96 | 8 | 4 | 5 | 2 | Yes | 8 or 16 bits,
4 chip selects,
24-bit address | 8-ch 12-bit
8-ch 10-bit | LQFP144
BGA144 | | SAM3U4C | 2 x 128 | 52 | 57 | 4 | 3 | 4 | 1 | No | 8 bits,
2 chip selects,
8-bit address | 4-ch 12-bit
4-ch 10-bit | LQFP100
BGA100 | | SAM3U2C | 128 | 36 | 57 | 4 | 3 | 4 | 1 | No | 8 bits,
2 chip selects,
8-bit address | 4-ch 12-bit
4-ch 10-bit | LQFP100
BGA100 | | SAM3U1C | 64 | 20 | 57 | 4 | 3 | 4 | 1 | No | 8 bits,
2 chip selects,
8-bit address | 4-ch 12-bit
4-ch 10-bit | LQFP100
BGA100 |
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