MAXQ1062EUD+

Application Specific Microcontrollers Overview

The MAXQ1062EUD+ is a DeepCover cryptographic controller designed for embedded security applications. It provides hardware-accelerated support for symmetric-key (AES-128/-256), asymmetric-key (ECC NIST P-256, -384, -521; Brainpool BP-256, -384, -512), and secure hash algorithms (SHA-256, -384, -512). The device includes an on-chip true random number generator and a dedicated 128-bit AES stream encryption engine over SPI supporting AES-GCM and AES-ECB modes. It features 8KB of user-programmable EEPROM for secure key and certificate storage, managed by a flexible file system with access rights. Communication interfaces include I2C and SPI slave controllers.

Application Specific Microcontrollers Feature Summary

• Comprehensive cryptographic toolbox supporting TLS/DTLS key negotiation, ECDSA authentication, and digital signature generation without firmware development.
• Hardware AES engine over SPI enables high-speed stream encryption (up to 20Mb/s) with AES-GCM and AES-ECB modes.
• Integrated True Random Number Generator (TRNG) for on-chip key generation.
• Tamper detection, watchdog timer, and secure boot functionality to protect against physical and logical attacks.

Application Specific Microcontrollers Applications

• Internet of Things (IoT) devices
• Portable medical devices
• Smart metering equipment
• Secure access control systems
• Industrial networking and PLCs

Application Specific Microcontrollers Procurement Notes

Verify the specific ordering suffix to confirm package type and reel configuration. The 'EUD' suffix indicates a 14-pin TSSOP package in tube form factor. Confirm RoHS compliance status as indicated by the '+' suffix. Ensure compatibility with host processor voltage levels and interface requirements before procurement.

Application Specific Microcontrollers Selection Notes

Select the MAXQ1062EUD+ when 8KB of nonvolatile EEPROM is sufficient for certificate and key storage. Choose this model over the MAXQ1061 if lower memory capacity meets application needs. Verify that the host system supports either I2C or SPI communication protocols required for TLS toolbox or AES-SPI engine modes respectively.

Application Specific Microcontrollers Part Context

The MAXQ1062EUD+ belongs to the Maxim Integrated DeepCover family of cryptographic controllers. It shares architectural similarities with the MAXQ1061 but differs in EEPROM size (8KB vs 32KB). Both devices offer identical cryptographic capabilities and are designed to simplify SSL/TLS/DTLS implementation in embedded systems.

Application Specific Microcontrollers Replacement Considerations

The MAXQ1061EUD+ serves as a direct functional substitute with increased EEPROM capacity (32KB). Other variants such as MAXQ1062ETP+ offer the same functionality in a 20-pin TQFN package. Ensure pinout compatibility and software stack adjustments when considering alternative packages within the same series.

Application Specific Microcontrollers FAQ

What cryptographic algorithms does the MAXQ1062EUD+ support?

It supports AES-128/-256 (ECB, CBC, CCM), ECC (NIST P-256, -384, -521; Brainpool BP-256, -384, -512), SHA-256/384/512, HMAC-SHA256/384/512, ECDSA, and EC Diffie-Hellman key exchange.

Can the MAXQ1062EUD+ operate as a secure bootloader?

Yes, it can serve as a secure bootloader for an external generic microcontroller by verifying the integrity of the host processor’s data and code through hash and signature verification mechanisms.

How is the AES stream encryption engine accessed?

The 128-bit AES engine is accessed via the SPI interface in AES-SPI mode, utilizing a dedicated DMA channel for high-speed encryption/decryption of data streams.