MEC1521H-B0-I/SZ-TR

Application Specific Microcontrollers Overview

The MEC1521H-B0-I/SZ-TR is an ARM Cortex-M4 based embedded controller from the MEC152x family, designed for notebook PC applications. It features a 32-bit processor running at up to 48 MHz with 256 KB of total SRAM (224 KB code, 32 KB data) and 64 bytes of battery-backed storage. The device operates on 1.8 V and 3.3 V power supplies within a temperature range of -40°C to +85°C. Key interfaces include Intel eSPI compliant host communication, five I2C/SMBus controllers, three UARTs, and a Quad SPI master. Security is provided by hardware accelerators for AES-256, ECDSA, SHA-384, and RSA, alongside a secure boot loader.

Application Specific Microcontrollers Feature Summary

• ARM Cortex-M4 processor core with nested vectored interrupt controller and full debug support
• Intel eSPI host interface supporting Master/Slave Attached Flash Sharing and four channels
• Hardware security accelerators including AES-256, ECDSA, SHA-384, and True Random Number Generator
• Integrated peripherals: 5 I2C/SMBus controllers, 3 UARTs, 9 PWM outputs, and 4 fan tachometer inputs

Application Specific Microcontrollers Applications

• Notebook PC embedded controllers
• Low power PC architecture designs requiring ACPI S0-S5 sleep state support
• Systems requiring secure boot and firmware authentication via SPI Flash

Application Specific Microcontrollers Procurement Notes

Verify component authenticity through authorized Microchip distributors or direct manufacturer channels. Confirm the specific suffix 'SZ' corresponds to the 144-pin WFBGA package variant. Ensure compliance with RoHS directives as indicated in official documentation before integration into final assemblies.

Application Specific Microcontrollers Selection Notes

Select this model for applications requiring an Intel eSPI interface and robust security features like hardware root of trust. Compare against MEC1523 and MEC1527 variants if additional internal flash or EEPROM resources are needed. Verify that the 144-pin WFBGA package fits the target PCB footprint and thermal requirements.

Application Specific Microcontrollers Part Context

This part belongs to the MEC152x family of low-power integrated embedded controllers. It shares the same core ARM Cortex-M4 architecture and peripheral set as other members like the MEC1521H-B0-I/2MW, differing primarily in package type (WFBGA vs VTQFP/WFBGA) and specific pinout configurations.

Application Specific Microcontrollers Replacement Considerations

MEC1521H-B0-I/2MW offers similar functionality in a 128-pin VTQFP/WFBGA package. MEC1523H-B0-I/SZ provides the same package but includes 2KB of internal EEPROM. Substitution requires verification of pin compatibility and memory resource availability.