ATSAM4S4AA-AN

Overview

The ATSAM4S4AA-AN is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at 120 MHz. It features 256 KB of Flash memory and 64 KB of SRAM. The device is housed in a 48-pin LQFP package and supports an operating temperature range of -40°C to 105°C. Power supply voltage ranges from 1.62V to 3.6V. Connectivity includes FS USB Device, HS SDIO/SD/MMC, three SPIs, two I2Cs, two USARTs, and two UARTs. Peripherals comprise sixteen 12-bit ADC channels, two 12-bit DAC channels, four 16-bit PWMs, six 16-bit timers, and up to 34 I/O pins.

Feature Summary

• Built around the ARM Cortex-M4 core with integrated Flash read accelerator and optional cache memory for increased system performance.
• Supports Microchip QTouch capacitive touch technology for native implementation of buttons, sliders, and wheels.
• Features hardware code protection including IP access prevention, secure chip erase, and CRC memory integrity checks.

Applications

• Consumer goods and toys
• Industrial control systems
• Metering applications
• Medical devices
• Test and measurement equipment

Procurement Notes

Verify the specific ordering suffix 'N' indicates the industrial temperature grade (-40°C to 105°C) as documented in the datasheet. Confirm pin compatibility requirements against legacy SAM4N, SAM3S, or SAM7S devices if migrating existing designs. Ensure development tools support the specific package type and interface configurations required for the target application.

Selection Notes

Select this model when an industrial temperature range is required alongside the 48-pin LQFP form factor. Compare against the ATSAM4S4AA-AU variant which shares identical electrical specifications but operates within the commercial temperature range. Consider the ATSAM4S4BA series if a 64-pin package with additional I/O capacity is necessary for the design constraints.

Part Context

This component belongs to the SAM4S family of scalable 32-bit MCUs designed for high performance and power efficiency. The series offers pin-to-pin compatibility with previous generations like SAM3S and SAM7S to facilitate portfolio migration. It integrates rich peripheral sets for connectivity and analog interfacing, targeting diverse embedded applications requiring robust processing capabilities.

Replacement Considerations

ATSAM4S4AA-AU