MEC1521H-B0-I/TF-TR

Application Specific Microcontrollers Overview

The MEC1521H-B0-I/TF-TR is an ARM Cortex-M4 embedded controller from the MEC152x family, designed for notebook PC applications. It features a 32-bit processor with a programmable clock frequency up to 48 MHz and operates within a temperature range of -40°C to 85°C. The device includes 256 KB of total SRAM (224 KB code, 32 KB data) and 64 bytes of battery-powered storage. Key interfaces include Intel eSPI compliant host communication, five I2C/SMBus controllers, three UARTs, and a Quad SPI Master Controller. Security is provided by hardware accelerators for AES-256, ECDSA, SHA-384, and RSA algorithms.

Application Specific Microcontrollers Feature Summary

• ARM Cortex-M4 core operating at up to 48 MHz with 256 KB SRAM
• Intel eSPI Host Interface supporting MAFS and SAFS protocols
• Hardware security accelerators including AES-256, ECDSA, and SHA-384
• Comprehensive peripheral set: 5 I2C/SMBus controllers, 3 UARTs, and QSPI Master

Application Specific Microcontrollers Applications

• Notebook PC Embedded Controllers
• ACPI S0-S5 Power Management Systems
• Secure Boot Loader Implementations
• Low Power IoT Edge Devices

Application Specific Microcontrollers Procurement Notes

Verify the specific package type associated with the /TF suffix against the manufacturer's official documentation before procurement. Confirm that the required silicon revision matches the design specifications. Ensure compatibility with the target platform's voltage requirements, as the device supports both 1.8V and 3.3V I/O regions. Check for any applicable errata sheets relevant to the specific silicon version being ordered.

Application Specific Microcontrollers Selection Notes

Select this component for applications requiring a low-power, secure embedded controller with native Intel eSPI support. The MEC1521 variant provides 256 KB SRAM and lacks the internal EEPROM found in the MEC1523 or the internal SPI Flash in the MEC1527. Ensure the system design accommodates the 144-pin WFBGA package if utilizing the standard MEC1521 form factor, or verify pinout compatibility if using alternative packages within the family.

Application Specific Microcontrollers Part Context

The MEC1521H-B0-I/TF-TR belongs to the MEC152x family of mixed-signal advanced I/O controllers. This family shares a common architecture based on the ARM Cortex-M4 core but varies in memory configurations and peripheral availability across models like MEC1523 and MEC1527. The device is optimized for notebook platforms, offering instant-on capabilities and extensive ACPI sleep state support.

Application Specific Microcontrollers Replacement Considerations

Direct replacements within the MEC152x family include MEC1521H-B0-I/SZ and MEC1521H-B0-I/Z2. These variants share the same core functionality and SRAM capacity but may differ in package type or specific peripheral pin assignments. Verify pin-to-pin compatibility and feature parity before substitution.