MEC1414-I/NU

Application Specific Microcontrollers Overview

The MEC1414-I/NU is a 32-bit embedded controller from the MEC140x/1x family, designed for notebook and tablet platforms. It integrates a MIPS32 M14K core operating at up to 48 MHz with 128 kB of combined SRAM (96 kB code, 32 kB data). The device supports LPC, I2C, and Intel eSPI host interfaces. Key peripherals include eight 10-bit ADC channels, two 8-bit DACs, three SMBus controllers, two PS/2 ports, and an SPI master. It operates on 3.3 V main power with VBAT/VTR standby planes and functions within a commercial temperature range of 0°C to +70°C in a 128-pin VTQFP package.

Application Specific Microcontrollers Feature Summary

• MIPS32 M14K microcontroller core with microMIPS instruction set support
• Integrated Intel eSPI peripheral channel, virtual wire, and flash channel interfaces
• Three programmable SMBus 2.0 host controllers with DMA support
• Eight-channel 10-bit ADC and two-channel 8-bit DAC interfaces

Application Specific Microcontrollers Applications

• Notebook PC embedded controllers
• Tablet platform I/O management
• Connected standby system designs

Application Specific Microcontrollers Procurement Notes

Verify the specific suffix 'I' indicates the commercial temperature grade (0°C to +70°C) as defined in the datasheet product table. Confirm the '-NU' designation corresponds to the 128-pin VTQFP package. Ensure firmware compatibility with the secure boot loader requirements for external SPI Flash devices.

Application Specific Microcontrollers Selection Notes

Select this model when eSPI connectivity is required alongside standard LPC or I2C options. Verify that the 128 kB SRAM allocation meets firmware size constraints. Check pin multiplexing requirements if utilizing multiple simultaneous interfaces such as SMBus, PS/2, and GPIOs.

Application Specific Microcontrollers Part Context

This component belongs to the MEC140x/1x series of keyboard and embedded controllers. It shares the same core architecture and peripheral sets as variants like the MEC1404 and MEC1406, differentiated primarily by memory capacity and supported host interface protocols.

Application Specific Microcontrollers Replacement Considerations

Direct replacements within the same package and feature set include MEC1414-NU. For different memory sizes, consider MEC1416-NU (160 kB) or MEC1418-NU (192 kB). Variants without eSPI support are MEC1404-NU or MEC1406-NU.