MEC1705 Series

Embedded Controller

Catalog

Embedded Controller

Part	Core Processor	Voltage - Supply [Max]	Voltage - Supply [Min]	Supplier Device Package	Applications	Number of I/O	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Interface	Package / Case	RAM Size
Microchip Technology MEC1705Q-C2-I/SZ	ARM® Cortex®-M4	3.465 V	1.71 V	144-WFBGA (9x9)	Keyboard and Embedded Controller	123	85 °C	-40 °C	Surface Mount	ACPI EBI/EMI eSPI I2C LPC PECI PS/2 QSPI SPI	144-WFBGA	480 K
Microchip Technology MEC1705Q-C1-I/SZ	ARM® Cortex®-M4	3.465 V	1.71 V	144-WFBGA (9x9)	Keyboard and Embedded Controller	123	85 °C	-40 °C	Surface Mount	ACPI EBI/EMI eSPI I2C LPC PECI PS/2 QSPI SPI	144-WFBGA	480 K

Catalog

Embedded Controller

Key Features

• * ARM® Cortex®-M4F Processor Core

• * Complete ARM-Standard Debug Support

• * Comprehensive ARM-Standard Trace Support

• * Internal Memory: up to 480KB of SRAM

• * Enhanced Serial Peripheral Interface (eSPI) - Intel eSPI Specification Compliant

• * Supports LPC Bus frequencies of 19MHz to 33MHz

• * Four EC-based SMBus 2.0 Host Controllers

• * Five independent Hardware Driven PS/2 Ports

• * One Quad Serial Peripheral Interface (SPI) Controller

• * 18 x 8 Interrupt Capable Multiplexed Keyboard Scan Matrix

• * Four Breathing/Blinking LED Interfaces

• * Multi-purpose AES Cryptographic Engine: Hardware support for ECB, CTR, CBC and OFB AES modes

• * Cryptographic Hash Engine: Support for SHA-1, SHA-256, SHA-512

• * Public Key Cryptographic Engine: Hardware support for RSA and Elliptic Curve public key algorithms andRSA keys length of 1024 or 2048 bits

• * True Random Number Generator: 1K bit FIFO

• * Monotonic Counter

Description

MEC1705 is customized for embedded and industrial computing platforms. It is available in extended temperature range of -40oC to +85oC. 2 UARTS and 2 KB of EEPROM are included. The family MEC17xx is a highly-configurable, mixed signal, advanced I/O controller architecture. Every device in the family incorporates a 32-bit ARM Cortex M4F Microcontroller core with a closely-coupled SRAM for code and data. A secure bootloader is used to download the custom firmware image from the system’s shared SPI Flash device, thereby allowing system designers to customize the device’s behavior. MEC170x products may be configured to communicate with the system host through one of three host interfaces: Intel Low Pin Count (LPC), eSPI, or I2C. This family’s products are designed to operate as either a stand-alone I/O device or as an EC Base Component of a split-architecture Advanced I/O Controller system which uses BC-Link communication protocol to access up to two BC bus companion components. The BC-Link protocol is peer-to-peer providing communication between the MEC170x embedded controller and registers located in a companion device. Similar Products: MEC1701, MEC1704, MEC1418, MEC1428 **Family parts** MEC1705Q-C2-I/SZ NOTE: While the MEC170x family of embedded controllers is still supported, the enhanced features offered by the latest MEC152x and MEC172x families are highly recommended for new designs.