ATSAM4SA16CA-ANR

Overview

The ATSAM4SA16CA-ANR is a 32-bit microcontroller based on the ARM Cortex-M4 core, belonging to the SAM4S series. It features 1 MB of Flash program memory and 160 kB of SRAM data RAM. The device operates at a maximum clock frequency of 120 MHz with a supply voltage range of 1.62 V to 3.6 V. It includes a 16-channel 12-bit ADC and two 12-bit DACs. Connectivity options include EBI/EMI, I2C, IrDA, SD/MMC, SPI, SSC, USART, and USB. The component is housed in a 100-LQFP package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• High-performance processing via ARM Cortex-M4 RISC architecture with hardware multiply and divide units.
• Integrated external bus interface (EBI) for connecting parallel peripherals and external memories.
• Comprehensive analog conversion capabilities including multiple 12-bit ADC channels and DAC outputs.
• Robust connectivity suite supporting standard serial protocols and full-speed USB functionality.

Applications

• Industrial control systems requiring robust peripheral interfaces
• Consumer electronics utilizing USB connectivity
• Security applications leveraging secure communication protocols
• Medical devices needing precise analog signal acquisition

Procurement Notes

Verify the specific suffix ANR against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the LQFP-100 form factor. Check for RoHS compliance status and moisture sensitivity level requirements during storage and handling. Confirm that the 1.62V to 3.6V supply range aligns with the target system power design.

Selection Notes

Select this model when 1 MB of non-volatile storage and 160 kB of RAM are required for complex firmware. The inclusion of EBI allows for expansion beyond internal resources. Consider the 120 MHz speed for real-time processing tasks. Evaluate the 100-pin count against available GPIO needs, noting that not all pins may be accessible depending on the selected package variant.

Part Context

This component is part of the SAM4S family, designed as a mid-range MCU offering a balance of performance and power efficiency. It shares architectural similarities with other SAM4S variants but differs in memory size and package options. The series targets applications demanding high throughput and extensive peripheral integration within a compact footprint.

Replacement Considerations

Consult official substitution lists for equivalent parts within the SAM4S family. Verify pin-to-pin compatibility if replacing ATSAM4SA16CA-AU or similar variants. Ensure software frameworks are compatible across minor revision differences.