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MEC1322-LZY-C0-TR

MCHPMEC1322-LZY-C0-TR

Microchip Technology
ARM® Cortex®-M4 - Keyboard and Embedded Controller Microcontroller IC 132-VFQFN Dual Rows, Exposed Pad
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Overview

The MEC1322-LZY-C0-TR is a highly integrated embedded controller featuring an ARM Cortex-M4F core with a floating-point unit and DSP instructions. Specifically designed for notebook and industrial computing platforms, it manages keyboard control, power management, and thermal monitoring through an extensive array of interfaces including LPC, eSPI, and PS/2. It integrates 128KB of SRAM and 32KB of boot ROM to support flexible system firmware requirements.

Why Choose This Part

The MEC1322 provides a high I/O count of 116 pins and a rich set of legacy and modern interfaces like PECI and BC-Link in a compact 132-VFQFN package. Its Cortex-M4F core offers superior processing efficiency and lower power consumption, down to 1.65uA in deep sleep modes, compared to traditional 8051-based embedded controllers.

Applications

Notebook Embedded Controller
Manages system power sequencing, thermal monitoring, and keyboard scanning in laptop designs.
Industrial PC Management
Provides hardware-level monitoring and low-level I/O control for ruggedized computing systems.
Legacy Port Bridging
Interfaces modern ARM-based logic with legacy LPC or PS/2 peripherals in specialized hardware.
Battery Management Communication
Uses SMBus/I2C interfaces to communicate with Smart Battery Systems and report status to the host OS.

Key Specifications

RAM Size 128K x 8
Interface ACPI, BC-Link, I2C/SMBus, LPC, PECI, PS/2, SPI, UART
Applications Keyboard and Embedded Controller
Mounting Type Surface Mount
Number of I/O 116
Core Processor ARM Cortex-M4
Package / Case 132-VFQFN Dual Rows, Exposed Pad
Voltage - Supply 3.135V ~ 3.465V
Operating Temperature 0degC ~ 70degC
Supplier Device Package 132-DQFN (11x11)

Getting Started

Development typically requires a JTAG-based DAP port or SPI-based flash programmer to load firmware. Engineers should leverage Microchip's MEC1322 reference designs and the MPLAB X IDE or ARM-compatible toolchains for firmware development. Configuration of the LPC or eSPI host interface is critical for communication with the primary system processor.

MEC1322-LZY-C0 Family

Also available as: MEC1322-LZY-C0