CEC1702Q-C2-I/SX

Application Specific Microcontrollers Overview

The Microchip Technology CEC1702Q-C2-I/SX is a cryptographic embedded controller based on the ARM Cortex-M4F processor core. It integrates a hardware floating-point unit, 480KB of SRAM, and a comprehensive hardware encryption suite including AES, SHA, RSA, and ECC engines. The device supports 3.3V and 1.8V operation with ACPI compliance. Key features include secure boot via Boot ROM, a True Random Number Generator, and extensive I/O capabilities such as four I2C controllers, two UARTs, and multiple PWM interfaces. It operates within a specified temperature range and utilizes an 84-pin WFBGA package.

Application Specific Microcontrollers Feature Summary

• ARM Cortex-M4F Core: 32-bit architecture with Hardware Floating Point Unit (FPU) and up to 240 interrupt sources.
• Hardware Cryptography: Supports AES-128/192/256, SHA-1/256/512, RSA (1024-4096 bit), and ECC (up to 640 bit).
• Secure Boot: Hardware Root of Trust with immutable code and support for authenticated SPI Flash images.
• Extensive I/O: Includes 65 GPIOs, four I2C controllers, two UARTs, Quad SPI, and dedicated fan/RPM control.

Application Specific Microcontrollers Applications

• Internet of Things (IoT) platforms requiring hardware-level security.
• Embedded controllers needing ACPI compliance and low standby current.
• Systems requiring secure key storage and authentication for connected devices.

Application Specific Microcontrollers Procurement Notes

Verify the specific suffix 'Q-C2-I/SX' against the manufacturer's official inventory list to confirm availability and exact silicon revision. Ensure that the ordering suffix does not imply functional differences unless explicitly documented in the datasheet errata or product selection guide. Confirm RoHS compliance status for the specific batch if required by regulatory standards.

Application Specific Microcontrollers Selection Notes

Select this component when a combination of ARM Cortex-M4 performance and dedicated hardware cryptographic acceleration is required. It is suitable for applications replacing standard microcontrollers where secure boot and protected key storage are critical. Consider the 84-pin WFBGA package constraints and the need for external SPI Flash for code execution during initial design phases.

Application Specific Microcontrollers Part Context

The CEC1702 belongs to Microchip's Cryptographic Embedded Controller family, designed specifically for IoT security. It serves as a specialized variant of general-purpose embedded controllers by integrating a full hardware crypto suite directly onto the MCU die, reducing reliance on software-based encryption and lowering power consumption compared to firmware-only solutions.

Application Specific Microcontrollers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Microchip's official cross-reference tools or contact sales for compatible alternatives within the CEC1x02 family or other ARM Cortex-M4 based cryptographic controllers.

Application Specific Microcontrollers FAQ

What is the maximum RSA key length supported by the CEC1702?

The CEC1702 supports RSA keys ranging from 1024 bits to 4096 bits.

Does the CEC1702 support secure boot from external memory?

Yes, the Boot ROM authenticates SPI Flash images before loading them into internal RAM, supporting both primary and fallback images with AES-256 encryption.

How many I2C controllers are integrated into the CEC1702?

The device integrates four I2C host controllers, which can operate as master or dual slave and support speeds up to 1MHz.