CEC1712H-B2-I/SX

Application Specific Microcontrollers Overview

The CEC1712H-B2-I/SX is a Cryptographic Embedded Controller from Microchip Technology, featuring a 32-bit ARM Cortex-M4 processor with a maximum clock frequency of 48 MHz. It integrates 256 KB of Code/Data SRAM and supports operating voltages of 3.3 V and 1.8 V across an industrial temperature range of -40°C to +85°C. The device includes hardware accelerators for AES-256, ECDSA P-384, SHA-384, RSA up to 4096 bits, and ECC up to 571 bits. It provides 68 GPIOs, five I2C/SMBus controllers, one Quad SPI master, three UARTs, and a True Random Number Generator.

Application Specific Microcontrollers Feature Summary

• ARM Cortex-M4 core with 256 KB SRAM and Boot ROM supporting secure boot via ECDSA P-384 and SHA-384.
• Hardware cryptographic accelerators including AES (128/256-bit), RSA (up to 4096-bit), ECC (up to 571-bit), and SHA (1-512).
• Integrated peripherals: 5 SMBus/I2C controllers, 1 Quad SPI master, 3 UARTs, 6 PWMs, and 5 ADC channels.
• Low power architecture supporting Light Sleep and Heavy Sleep modes with VBAT-powered RTC and timers.

Application Specific Microcontrollers Applications

• Secure boot authentication for external SPI Flash images in PC platforms.
• Cryptographic embedded controllers requiring hardware root of trust.
• Systems utilizing ACPI power states and low standby current requirements.

Application Specific Microcontrollers Procurement Notes

Verify the specific suffix 'H-B2' against official documentation to confirm manufacturing lot or revision details. Confirm availability status as product lifecycles may change. Ensure compatibility with 1.8V and 3.3V power domains during design integration.

Application Specific Microcontrollers Selection Notes

Select this component for applications requiring strong cryptographic support alongside standard embedded controller functions. The dual voltage capability (1.8V/3.3V) allows flexibility for both legacy and modern platform controller hubs. Ensure sufficient SPI Flash interface requirements are met by the integrated Quad SPI controller.

Application Specific Microcontrollers Part Context

This part belongs to the CEC1712 family of Cryptographic Embedded Controllers. It is designed for high-security environments where immutable code and hardware-based key storage are critical. The device replaces traditional firmware-only security solutions with dedicated hardware accelerators.

Application Specific Microcontrollers Replacement Considerations

No direct public substitute part numbers are identified in the provided documentation. Evaluate other Microchip CEC series devices for functional equivalence if availability is constrained.

Application Specific Microcontrollers FAQ

What cryptographic algorithms are supported by the hardware accelerators?

The CEC1712 supports AES (128/256-bit), SHA (1-512), RSA (1024-4096 bits), ECDSA, EC_KCDSA, and ECC (Prime/Binary Field up to 571 bits).

How does the secure boot process work?

The Boot ROM authenticates SPI Flash images using ECDSA P-384 and SHA-384 before loading them into internal RAM. It supports primary and fallback images and AES-256 encrypted flash content.

What are the available sleep modes?

The device supports Light Sleep and Heavy Sleep modes, designed to minimize standby current while maintaining VBAT-powered peripherals like the RTC.