ATSAM4S4CB-AN

Overview

The ATSAM4S4CB-AN is a 32-bit microcontroller from the Microchip SAM4S series, built on the ARM Cortex-M4 core. It operates at a maximum frequency of 120 MHz and includes 256 KB of Flash memory and 64 KB of SRAM. The device features an integrated ADC with 16 channels and 12-bit resolution, alongside two 12-bit DACs. It supports interfaces including USB, SPI, I2C, UART/USART, SSC, IrDA, and SD/MMC. Additional peripherals comprise DMA, PWM, watchdog timer, power-on reset, and brown-out detection. Operating voltage ranges from 1.62 V to 3.6 V, with a temperature range of -40°C to 105°C in a 100-LQFP package.

Feature Summary

• Integrates a high-performance 32-bit ARM Cortex-M4 processor with DSP instructions for efficient code execution.
• Provides extensive connectivity through full-speed USB Device port, multiple serial communication interfaces, and external bus interface capabilities.
• Includes mixed-signal conversion hardware with multiple 12-bit analog-to-digital converters and digital-to-analog converters.

Applications

• Industrial control systems requiring robust processing and analog signal interfacing
• Consumer electronics utilizing USB connectivity and display drivers
• Medical devices needing precise analog measurement and reliable operation

Procurement Notes

Verify the specific suffix 'AN' against the manufacturer's current datasheet to confirm pinout compatibility and environmental ratings. Ensure the selected package variant matches the PCB footprint requirements. Cross-reference the latest errata document for any silicon revisions that may impact peripheral functionality or electrical characteristics before finalizing procurement.

Selection Notes

Select this component when a balance of moderate Flash capacity and rich peripheral set is required within a compact LQFP form factor. Compare against other SAM4S variants based on the specific number of available GPIOs and ADC channels needed for the application. Consider the operating temperature range and supply voltage constraints relative to the target system environment.

Part Context

This part belongs to the SAM4S family of Flash microcontrollers designed for cost-sensitive applications. It shares architectural similarities with other members like the ATSAM4S4CA but differs in package type and potentially pin allocation. The series emphasizes low power consumption and high performance per watt, targeting embedded applications where size and efficiency are critical design parameters.

Replacement Considerations

Direct substitutes include other packages within the same memory configuration, such as ATSAM4S4CA-AU or ATSAM4S4CB-CN, provided the pinout and thermal requirements align. Verify functional equivalence regarding peripheral availability and software compatibility before swapping components.