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Description
MICROCHIP ATSAM4S2AA-AU 32 Bit Microcontroller, SAM4S Series, ARM Cortex-M4, 120 MHz, 128 KB, 64 KB, 48 Pins, LQFPThe ATSAM4S2AA AU is a SMART SAM4S series 32 bit Flash Microcontroller based on the high performance ARM Cortex M4 RISC processor. It operates at a maximum speed of 120MHz and features 128kB of flash memory and 64kB of SRAM. Peripheral set includes a full speed USB device port with embedded transceiver, a high speed MCI for SDIO SD MMC, an External Bus Interface featuring a Static Memory Controller to connect to SRAM, PSRAM, NOR flash, LCD Module and
The ATSAM4S2AA-AU is a SMART SAM4S series 32-bit Flash Microcontroller based on the high-performance ARM Cortex-M4 RISC processor. It operates at a maximum speed of 120MHz and features 128kB of flash memory and 64kB of SRAM. Peripheral set includes a full-speed USB device port with embedded transceiver, a high-speed MCI for SDIO/SD/MMC, an External Bus Interface featuring a Static Memory Controller to connect to SRAM, PSRAM, NOR flash, LCD Module and NAND flash, 2 USARTs, 2 UARTs, 2 TWIs, 3 SPIs, an I²S, as well as a PWM timer, two 3-channel general-purpose 16-bit timers (with stepper motor and quadrature decoder logic support), an RTC, a 12-bit ADC, a 12-bit DAC and an analog comparator. The device operate from 1.62V to 3.6V. It is ready for capacitive touch, offering native support for the Atmel QTouch® library for easy implementation of buttons, wheels and sliders. The real-time event management allows peripherals to receive, react to and send events in active and sleep modes.
- ARM Cortex-M4 with 2kB of cache running at up to 120MHz
- Memory protection unit (MPU)
- DSP Instruction set
- Thumb®-2 instruction set
- Pin-to-pin compatible with Atmel SAM7S, SAM3N and SAM3S MCUs
- Embedded voltage regulator for single supply operation
- Power-on-reset (POR), brown-out detector (BOD) and watchdog for safe operation
- 3 to 20MHz Resonator oscillators
- RTC with Gregorian and Persian Calendar mode, waveform generation in low-power modes
- RTC counter calibration circuitry compensates for 32.768kHz crystal frequency inaccuracy
- High-precision factory-trimmed internal RC oscillator with 4MHz default frequency
- Slow clock internal RC oscillator as permanent low-power mode device clock
- Two PLLs up to 240MHz for device clock and for USB
- Temperature sensor
- Low-power tamper detection on two inputs
- Sleep, wait and backup modes
- 32-bit Real-time timer and RTC with calendar, alarm and 32kHz trimming features
- 256-bit General purpose backup registers (GPBR)
- One 2-channel 12-bit 1MSPS DAC
- One analog comparator with flexible input selection, selectable input hysteresis
Applications
Metering
Product details
| Embedded Interface Type | I2C, I2S, SPI, UART, USB |
| No. of I/O's | 34I/O's |
| No. of Bits | 32bit |
| Program Memory Size | 128KB |
| Architecture | ARM Cortex-M4 |
| No. of Pins | 48Pins |
| Product Range | SMART ARM based Microcontrollers |
| CPU Speed | 120MHz |
| Supply Voltage Min | 1.62V |
| MCU Case Style | LQFP |
| Packaging | Each |
| Supply Voltage Max | 3.6V |
| RAM Memory Size | 64KB |
| MSL | MSL 3 - 168 hours |
Other details
| Brand | MICROCHIP |
| Part Number | ATSAM4S2AA-AU |
| Quantity | Each |
| Technical Data Sheet EN | |
| Operating Instructions EN |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
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Exchange/Return Notes
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4.8 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Good choice in sublimation paper!
Size: 8.5"x14"
Good printer compatibility with my Epson printer. Very smooth. No jamming in my printer. I use a lot of of sublimation paper lots of projects going on. Need to def to stock up
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Reviewed in the United States on February 12, 2026
★★★★★ 5
It works
The adhesion on this is great once you've pressed it down. Key to note that it slips off very easily if it's not firmly pressed to the paper Im sublimating with. That's more of a plus for me because it's easy to move around and adjust without ripping the paper.
Great value for the dollar overall.
Performance wise it's done a great job of holding down the paper and stopping bleed through.
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Reviewed in the United States on May 13, 2024
★★★★★ 5
Good Quality
Very easy to use, my favorite tape to use for sublimating tumblers. Sticks perfect, great value for your money, it is durable & my go to for about 2 years now
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Reviewed in the United States on December 13, 2024
★★★★★ 5
Excellent
Excellent
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Reviewed in the United States on December 4, 2025
★★★★★ 5
Love it
Works great I use it to sub tumblers etc
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Reviewed in the United States on May 17, 2024
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