The ATSAM4S4CB-ANR is a high-performance microcontroller from Microchip (formerly Atmel), designed for demanding embedded applications that require efficiency, low power, and advanced peripheral integration. Built around the powerful ARM® Cortex®-M4 32-bit RISC core, this MCU balances processing power, memory, and connectivity for industrial, consumer, and automation systems.

Key Features

• Core: ARM Cortex-M4, running up to 120 MHz

• Memory:

  • 256 KB Flash memory

  • 64 KB SRAM

• Package: LQFP-64 (10 x 10 mm)

• Operating Voltage: 1.62V to 3.6V

• Operating Temperature Range: -40°C to +85°C (industrial grade)

Integrated Peripherals

• Communication Interfaces:

  • 3x USART

  • 2x SPI

  • 1x TWI (I²C compatible)

  • USB 2.0 Device with embedded transceiver

• Analog:

  • 16-channel 12-bit ADC

  • 2x 12-bit DAC

• Timers and PWM: Advanced 16-bit timers, PWM controller for motor control and power applications

• Other: Real-time clock, watchdog, and system tick timer

Performance & Power

• DSP Extensions: Efficient digital signal processing with hardware multiply-accumulate (MAC) instructions

• Low Power Modes: Sleep, Wait, Backup for energy-efficient designs

• Fast Wake-Up: < 10 μs from deep sleep

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