CEC1702Q-C1-SX-TR

Application Specific Microcontrollers Overview

The CEC1702Q-C1-SX-TR is a cryptographic embedded controller from Microchip Technology, designed for Internet of Things (IoT) platforms. It features a 32-bit ARM Cortex-M4F processor core with hardware floating-point support and a secure boot loader. The device integrates extensive I/O capabilities, including up to 65 GPIOs, four I2C controllers, two UARTs, and multiple timer interfaces. Cryptographic security is provided by dedicated hardware engines for AES, SHA hashing, and public key algorithms (RSA/ECC), alongside a true random number generator. It operates on 3.3V and 1.8V supply planes and is housed in an 84-pin WFBGA package.

Application Specific Microcontrollers Feature Summary

• ARM Cortex-M4F Core: 32-bit architecture with hardware FPU, MPU, and comprehensive debug/trace support.
• Cryptographic Engine: Hardware acceleration for AES (128/192/256-bit), SHA-1/256/512, RSA (up to 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/SMBus controllers, two UARTs, Quad SPI, and ADC interface.

Application Specific Microcontrollers Applications

• Internet of Things (IoT) platform controllers
• Cryptographic embedded systems requiring hardware acceleration
• ACPI compliant system management

Application Specific Microcontrollers Procurement Notes

Verify the specific suffix 'Q-C1-SX-TR' against the official datasheet inventory to confirm package type, temperature range, and tape-and-reel quantity. Ensure compatibility with the required voltage domains (VBAT/VTR) and external SPI Flash memory specifications for secure boot operations.

Application Specific Microcontrollers Selection Notes

Select this component when hardware-accelerated cryptography and low-power standby modes are required. The CEC1702 supports both 1.8V and 3.3V I/O regions. Consider the available SRAM blocks (480KB total) and the specific peripheral count (e.g., number of I2C or PWM channels) against application requirements.

Application Specific Microcontrollers Part Context

The CEC1702 belongs to the CEC1702 family of highly configurable mixed-signal advanced I/O controllers. It is specifically tailored for IoT applications, combining general-purpose embedded control functions with robust security features. The family utilizes a common ARM Cortex-M4F core architecture across different package variants.

Application Specific Microcontrollers Replacement Considerations

Consult the Microchip CEC1702 product family table for alternative pin-compatible or functionally similar devices within the same series. Verify silicon revision compatibility if replacing existing units in production.

Application Specific Microcontrollers FAQ

What cryptographic algorithms are supported by the CEC1702?

The CEC1702 supports AES (ECB, CTR, CBC, OFB modes with 128/192/256-bit keys), SHA-1, SHA-256, SHA-512, RSA (1024 to 4096 bits), and Elliptic Curve Cryptography (Prime and Binary fields up to 640 bits).

How does the secure boot process work on the CEC1702?

Upon reset, the Boot ROM executes an SPI Flash Loader that downloads user code from an external SPI Flash device into internal SRAM. It authenticates the image before execution and supports AES-256 encrypted images, providing a hardware Root of Trust.

What are the power supply requirements for the CEC1702?

The device requires a minimum of two separate suspend supply planes: VBAT and VTR. It supports operation at 3.3V and 1.8V for different I/O regions and internal logic.