MEC1418-NU

Application Specific Microcontrollers Overview

The MEC1418-NU is a keyboard and embedded controller for notebook platforms, manufactured by Microchip Technology. It features a MIPS32 M14K core operating at up to 48 MHz with microMIPS compatibility. The device includes 192 kB of combined SRAM (160 kB code, 32 kB data) and supports LPC, I2C, and eSPI host interfaces. Key peripherals include eight 10-bit ADCs, two 8-bit DACs, three SMBus controllers, two PS/2 ports, and an SPI master. It operates on 3.3 V power planes and complies with ACPI 3.0 standards.

Application Specific Microcontrollers Feature Summary

• MIPS32 M14K core with 48 MHz max clock speed
• 192 kB total SRAM (160 kB code + 32 kB data)
• Supports LPC, I2C, and Intel eSPI host interfaces
• Integrated 8-channel 10-bit ADC and 2-channel 8-bit DAC

Application Specific Microcontrollers Applications

• Notebook PC embedded controllers
• Tablet platform I/O control
• ACPI-compliant system management

Application Specific Microcontrollers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature range. Confirm RoHS compliance status directly from the datasheet or official product change notifications before finalizing procurement specifications.

Application Specific Microcontrollers Selection Notes

Select this model when 192 kB of internal SRAM is required alongside support for eSPI, LPC, and I2C interfaces. Ensure the design accommodates the 128-pin VTQFP package dimensions and utilizes the 3.3 V operating voltage requirements specified in the electrical characteristics section.

Application Specific Microcontrollers Part Context

This component belongs to the MEC140x/1x family of advanced I/O controllers designed for notebooks and tablets. It shares architectural similarities with models like the MEC1414-NU and MEC1416-NU but provides a distinct 192 kB SRAM capacity compared to other variants in the series.

Application Specific Microcontrollers Replacement Considerations

Direct replacements within the same family include the MEC1414-NU and MEC1416-NU, which share the 128-VTQFP package and interface options but differ in SRAM size. Verify pinout compatibility and firmware adaptation requirements when substituting these parts.