ATSAM4S4CB-CNR

Overview

The ATSAM4S4CB-CNR is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at a maximum clock frequency of 120 MHz. It features 256 KB of in-system programmable flash memory and 64 KB of SRAM. The device includes an integrated ADC with 16 channels and 12-bit resolution, along with two 12-bit DAC channels. It supports multiple communication interfaces including USB, SPI, I2C, UART/USART, SSC, IrDA, and EBI/EMI. The component operates within a voltage range of 1.62 V to 3.6 V and functions across an extended temperature range from -40 °C to +105 °C.

Feature Summary

• Integrates an ARM Cortex-M4 processor with hardware floating-point unit for efficient signal processing.
• Provides extensive connectivity through built-in USB Full-Speed controller and standard serial interfaces.
• Includes high-resolution analog peripherals with 16-channel 12-bit ADC and dual 12-bit DACs.
• Supports flexible memory access via External Bus Interface for expansion capabilities.

Applications

• Industrial control systems requiring robust processing and wide temperature tolerance
• Medical devices utilizing precise analog signal acquisition and conversion
• Consumer electronics featuring USB connectivity and display interfacing
• Smart metering applications demanding reliable data communication

Procurement Notes

Verify the specific suffix 'CNR' against official Microchip documentation to confirm package type and temperature grade alignment. Ensure compatibility with required PCB footprint dimensions for the designated package. Confirm RoHS compliance status matches project environmental regulations. Validate that the supply chain source provides authentic components with traceable manufacturing records.

Selection Notes

Select this model when 256 KB of program storage and 64 KB of RAM are sufficient for application logic. Choose this variant over other SAM4S series members if the specific pin count and peripheral set match the design constraints. Consider the extended temperature range suitability for harsh environments compared to commercial grade options.

Part Context

This component belongs to the Microchip SAM4S family of microcontrollers. These devices are designed for applications requiring high performance and low power consumption. The family shares common architectural features while varying in memory size and package options. This specific part represents a mid-range configuration within the series.

Replacement Considerations

Consult official substitution guides for compatible parts within the SAM4S series. Verify pin-to-pin compatibility and memory equivalence before replacing. Check for any functional differences in peripheral availability or electrical characteristics between original and substitute components.