EEC1005-I/SX1-UB1

Application Specific Microcontrollers Overview

The EEC1005-I/SX1-UB1 is a Universal Storage Backplane Management Processor manufactured by Microchip Technology. It implements SFF-TA-1005 UBM over I2C and supports SFF-8654 Host Facing Connectors (HFC). The device integrates UBM FRU non-volatile memory, provides SFF-8639 U.2 and SFF-TA-1001 U.3 Drive Facing Connector (DFC) support, and enables SES over UBM. It features up to 8 I2C ports for UBM and BMC interfaces, hardware-accelerated SGPIO legacy interfaces per SFF-8485, and secure boot with AES-256 and ECDSA P-256 accelerators. It manages storage LEDs per SFF-8489 IBPI specifications and scales to 16 drives on a single device.

Application Specific Microcontrollers Feature Summary

• Supports SFF-TA-1005 UBM over I2C and SFF-8654 HFC communication
• Integrates UBM FRU NVM and supports SFF-8639 U.2 / SFF-TA-1001 U.3 DFCs
• Hardware-accelerated secure boot using AES-256, ECDSA P-256, and SHA-256
• Configurable via analog pin for SAS/SATA/PCIe backplane architectures

Application Specific Microcontrollers Applications

• Enterprise storage enclosure management
• SAS/SATA/NVMe backplane implementations
• Multiple chassis configurations with NVMe hot plug support

Application Specific Microcontrollers Procurement Notes

Verify the specific suffix 'SX1' against official documentation to confirm package or temperature grade variations. Confirm availability through authorized distributors as supply levels fluctuate. Ensure the ordering part number matches the required configuration pin settings and pinout table for the target application.

Application Specific Microcontrollers Selection Notes

Select based on the required number of drives and host interface type (SGPIO vs. UBM). Use the CONFIG_PIN voltage divider network to set the specific backplane architecture at startup. Verify that the selected package (84-pin or 144-pin WFBGA) accommodates the necessary HFC and DFC counts for the design.

Application Specific Microcontrollers Part Context

The EEC1005 is designed for enterprise storage systems requiring standardized backplane management. It replaces discrete controllers by integrating UBM logic, FRU memory, and LED drivers into a single configurable processor. It supports both direct attach and host attach configurations for flexible system integration.

Application Specific Microcontrollers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Evaluate alternative Microchip processors based on pin compatibility and supported SFF standards if substitution is required.

Application Specific Microcontrollers FAQ

How is the EEC1005 configured for different backplane types?

Configuration is determined by an analog voltage sampled at the CONFIG_PIN at startup. A resistor divider network sets this voltage to select between SGPIO or UBM modes and drive counts.

What security features are integrated into the EEC1005?

It includes a secure boot loader that authenticates code using AES-256, ECDSA P-256, and SHA-256 hardware accelerators. It also supports key revocation and lockable OTP storage for private keys.

Does the EEC1005 support NVMe drive management?

Yes, it supports NVMe hot plug and power disable for drives. It can manage up to 12 NVMe drives via UBM Host Interfaces when configured for PCIe-only backplanes.