AT91SAM9CN12-CU

Microprocessors Overview

The AT91SAM9CN12-CU is a microprocessor based on the ARM926EJ-S core, operating at a maximum clock frequency of 400 MHz. It features a 32-bit data bus and is housed in an LFBGA-217 package. The device includes 16 kB of L1 instruction cache, 16 kB of L1 data cache, 32 kB of internal RAM, and 128 kB of internal ROM. It supports I/O voltages of 1.8 V and 3.3 V, with a core voltage of 1 V. The component offers 105 I/O pins and operates within a temperature range of -40°C to +85°C.

Microprocessors Feature Summary

• Integrates ARM926EJ-S processor core for embedded control applications
• Includes hardware cryptographic engine for secure data processing
• Provides multiple communication interfaces including USB and serial protocols

Microprocessors Applications

• Secure industrial automation controllers
• Embedded security gateways
• Consumer electronics with encryption requirements

Microprocessors Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with required I/O voltage levels and memory configurations before integration. Confirm availability status as distribution channels may vary.

Microprocessors Selection Notes

Select this component when a balance of processing speed and integrated security features is required. The ARM926EJ-S core provides sufficient performance for complex control tasks while the built-in crypto engine reduces external component count. Evaluate pin count requirements against the available 105 I/Os.

Microprocessors Part Context

This part belongs to the SAM9CN series of microprocessors designed by Microchip Technology. The series targets applications requiring moderate processing power combined with hardware-based security capabilities. It utilizes the ARM9 architecture for established software support and ecosystem compatibility.

Microprocessors Replacement Considerations

Consult official Microchip substitution guides for verified alternatives. Cross-reference pinouts and electrical specifications carefully when considering family members or newer generations.