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Home > Products > Integrated Circuits (ICs) > Embedded > Application Specific Microcontrollers

Microchip Technology MEC1703Q-C2-XY

Name: MEC1703Q-C2-XY
Brand: Microchip Technology
SKU: MEC1703Q-C2-XY
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MEC1703Q-C2-XY

Manufacturer:: Microchip Technology

Category:: Application Specific Microcontrollers

Package:: 169-WFBGA

Datasheet:: MEC1703Q-C2-XY.pdf

Description:: SRAM

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Product details

Overview

MEC1703Q-C2-XY from Microchip Technology is an ARM Cortex-M4F-based embedded controller designed for notebook and tablet platform power management, keyboard scanning, and system control. It integrates 256KB–480KB SRAM, 2KB EEPROM, 148 GPIOs, eSPI/LPC host interface, and hardware cryptographic engines (AES-128/192/256, SHA-1–512, RSA/ECC). It operates with dual voltage domains (1.8V/3.3V I/O, 3.3V analog/PLL) and supports ACPI-compliant sleep states with VBAT-backed RTC and hibernation timers.

For engineers reviewing the MEC1703Q-C2-XY datasheet, MEC1703Q-C2-XY pinout, MEC1703Q-C2-XY application, or MEC1703Q-C2-XY equivalent, key selection considerations include eSPI/LPC host interface compatibility, VBAT-powered real-time functions, integrated cryptographic acceleration, fan/PWM/tach control for thermal management, and secure boot with immutable Boot ROM and Root of Trust.

Technical Context

The MEC1703Q-C2-XY implements a tightly coupled ARM Cortex-M4F core with hardware FPU, NVIC supporting 240 interrupt sources, and full ARM-standard debug infrastructure (SWJ-DP, DWT, FPB, ETM, ITM, TPIU). Its subsystem architecture includes five independent ACPI-ECI instances, four SMBus 2.0 controllers (1MHz, DMA-driven), and three PS/2 controllers with edge-wake capability.

Power management is implemented via dual standby planes (VTR/VBAT), low-standby-current sleep modes, integrated 32.768 kHz crystal oscillator, and hibernation timers with programmable wake-up from 0.5 ms to 128 minutes. Security is enforced through Boot ROM–based secure loader, AES/SHA/RSA/ECC hardware engines, TRNG, and eFUSE-controlled immutable code.

Key Specifications

Parameter	Value and Actual Design Meaning
Core	ARM Cortex-M4F with hardware FPU, 32-bit v7-M ISA, 4GB address space
SRAM	256KB–480KB total (configurable as code/data blocks), including 128-byte VBAT-backed RAM
EEPROM	2KB, 32-byte page size, 1M write cycles, single-byte read/write access
eSPI Interface	Fully compliant with Intel eSPI spec; supports peripheral/virtual wire/out-of-band/flash channels
Cryptographic Engines	AES-128/192/256 (ECB/CTR/CBC/OFB), SHA-1–512, RSA up to 2048-bit, ECC up to 640-bit
Timers & RTC	Two 16-bit hibernation timers, one 32-bit RTOS timer, VBAT-powered RTC with calendar/alarm/daylight savings
Fan Control	11 PWM outputs, 3 tach inputs, two RPM-based fan speed controllers with 3% accuracy (500–16k RPM)

Pinout & Package

MEC1703Q-C2-XY is housed in a 169-pin WFBGA package (RoHS-compliant, XY variant), with 148 GPIOs distributed across three voltage domains (1.8V/3.3V configurable), dedicated VBAT/VTR power pins, and ball-mapped interfaces for eSPI, LPC, PS/2, SMBus, UART, and BC-Link.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Main runtime supply input	Monitors system power state; enables high-performance operation (e.g., active CPU, SPI flash access)
VBAT	Standby battery supply input	Powers RTC, hibernation timers, 128-byte SRAM, and wake-up logic during S5/S4 states
VTR	Standby rail input	Supplies low-power logic (eSPI, SMBus, GPIO retention) during S3/S4/S5; enables instant-on resume
eSPI_CS# / eSPI_CLK / eSPI_IO[3:0]	eSPI bus interface signals	Enable communication with PCH at 1.8V; support peripheral, virtual wire, OOB, and flash channel protocols
LPC_FRAME# / LPC_RST# / LPC_CLK	LPC host interface signals	Provide backward-compatible 19–33 MHz LPC interface with ACPI SCI, SMI#, and Serial IRQ support
PS2_CLK / PS2_DATA	PS/2 controller I/O pairs	Support up to five PS/2 ports (three controllers); enable keyboard/mouse wake with edge detection
GPIO_XX	General-purpose I/O	Configurable 1.8V/3.3V, glitch-filtered, drive-strength/slew-rate programmable; up to 148 available

Key Features

Feature	Design Value
Secure Boot Architecture	Hardware Root of Trust with immutable Boot ROM authenticates SPI flash images before execution; supports AES-256 encrypted firmware
Multi-Interface Host Connectivity	Simultaneous eSPI and LPC host interface support enables flexible platform integration without redesigning EC-to-PCH interconnect
VBAT-Powered Real-Time Subsystem	RTC, week timer, hibernation timers, and 128-byte SRAM remain fully functional on battery only-no main power required
Integrated Thermal Management	11 PWM outputs + 3 tach inputs + 2 closed-loop RPM controllers deliver precise, self-calibrating fan speed regulation across wide RPM range
Hardware Cryptographic Acceleration	Dedicated AES/SHA/RSA/ECC engines offload CPU during secure boot, firmware updates, and TPM-related operations
Legacy & Modern Peripheral Support	Five ACPI-ECI instances, eight UART register sets, 18×8 keyboard matrix, four breathing LED PWMs, and RC_ID detection reduce external component count

Applications

Ultra-Thin Notebook Power Management	Convertible Tablet System Control
Use Scenario: Managing S0ix/S3/S4/S5 transitions, battery charging, thermal throttling, and lid-open/wake events in fanless or low-power notebooks. IC Role / Device Role / Timing Role: Primary embedded controller executing ACPI-compliant power state machine; provides VBAT-backed RTC and hibernation timers for sub-second wake latency. Use Value: Enables connected standby compliance with <100 µA suspend current and deterministic wake timing via 32.768 kHz–driven hibernation timers.	Use Scenario: Coordinating mode switching (tablet/laptop), orientation sensing, stylus proximity, and dynamic power allocation in 2-in-1 devices. IC Role / Device Role / Timing Role: Central system controller interfacing with PCH via eSPI, managing GPIO-based sensors, and driving breathing LEDs for UI feedback. Use Value: Reduces BOM by integrating 148 GPIOs, four breathing LED PWMs, and RC_ID detection-replacing discrete logic and LED drivers.
Enterprise Laptop Security Subsystem	Industrial Thin Client Baseboard Management
Use Scenario: Enabling hardware-rooted device identity, secure firmware updates, and TPM 2.0–compatible attestation in corporate laptops. IC Role / Device Role / Timing Role: Secure boot loader and cryptographic co-processor; executes authenticated firmware using AES-256, SHA-256, and RSA-2048 engines. Use Value: Eliminates need for external TPM chip-hardware RoT, immutable Boot ROM, and eFUSE locking meet NIST SP 800-193 requirements.	Use Scenario: Providing remote monitoring, fan control, temperature logging, and watchdog supervision in headless industrial thin clients. IC Role / Device Role / Timing Role: Standalone baseboard manager with dual UARTs (one 8-pin modem-capable), 16-channel ADC, and 11 PWM outputs for thermal actuation. Use Value: Supports unattended operation with 3% accurate RPM control, 10-bit ADC for thermistor reading, and system watchdog with configurable timeout.

Ultra-Thin Notebook Power Management

Convertible Tablet System Control

Use Scenario: Managing S0ix/S3/S4/S5 transitions, battery charging, thermal throttling, and lid-open/wake events in fanless or low-power notebooks.

IC Role / Device Role / Timing Role: Primary embedded controller executing ACPI-compliant power state machine; provides VBAT-backed RTC and hibernation timers for sub-second wake latency.

Use Value: Enables connected standby compliance with <100 µA suspend current and deterministic wake timing via 32.768 kHz–driven hibernation timers.

Use Scenario: Coordinating mode switching (tablet/laptop), orientation sensing, stylus proximity, and dynamic power allocation in 2-in-1 devices.

IC Role / Device Role / Timing Role: Central system controller interfacing with PCH via eSPI, managing GPIO-based sensors, and driving breathing LEDs for UI feedback.

Use Value: Reduces BOM by integrating 148 GPIOs, four breathing LED PWMs, and RC_ID detection-replacing discrete logic and LED drivers.

Enterprise Laptop Security Subsystem

Industrial Thin Client Baseboard Management

Use Scenario: Enabling hardware-rooted device identity, secure firmware updates, and TPM 2.0–compatible attestation in corporate laptops.

IC Role / Device Role / Timing Role: Secure boot loader and cryptographic co-processor; executes authenticated firmware using AES-256, SHA-256, and RSA-2048 engines.

Use Value: Eliminates need for external TPM chip-hardware RoT, immutable Boot ROM, and eFUSE locking meet NIST SP 800-193 requirements.

Use Scenario: Providing remote monitoring, fan control, temperature logging, and watchdog supervision in headless industrial thin clients.

IC Role / Device Role / Timing Role: Standalone baseboard manager with dual UARTs (one 8-pin modem-capable), 16-channel ADC, and 11 PWM outputs for thermal actuation.

Use Value: Supports unattended operation with 3% accurate RPM control, 10-bit ADC for thermistor reading, and system watchdog with configurable timeout.

Equivalent & Alternatives

The following parts are listed as comparable options for similar embedded controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MEC1703Q-C2-TN	Same core, memory, and peripherals; differs only in 169-pin WFBGA package (TN variant) with identical pinout but different ball pitch and thermal pad configuration	Compatible in footprint-constrained designs requiring alternate thermal dissipation profile; same firmware and register map	Select when board layout requires TN mechanical footprint or specific JEDEC thermal pad alignment
MEC1703Q-C2-SZ	144-pin WFBGA package; reduced GPIO count (123 vs. 148), no EEPROM, same cryptographic engines and eSPI/LPC support	Suitable for cost-sensitive or space-constrained platforms where 2KB EEPROM and full GPIO count are non-critical	Choose when BOM cost reduction is prioritized over non-volatile configuration storage and maximum I/O flexibility

Compared with MEC1703Q-C2-XY, the TN variant offers identical functionality in a mechanically distinct 169-pin WFBGA, while the SZ variant trades EEPROM and 25 GPIOs for lower package cost and footprint-making XY optimal for feature-complete, battery-backed, secure notebook EC implementations.

Availability

MEC1703Q-C2-XY is available at Aetrix Electronics and suitable for ultra-thin notebook power management, convertible tablet system control, enterprise laptop security subsystems, and industrial thin client baseboard management requiring stable component supply and long-term lifecycle support.

Supply support for MEC1703Q-C2-XY includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology Inc. is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions, serving automotive, industrial, consumer, and computing markets with vertically integrated silicon and software tools.

The MEC170x family is Microchip's dedicated embedded controller product line for x86-based mobile platforms, engineered to replace legacy 8051-based ECs with ARM-based performance, cryptographic security, and modern interface support (eSPI, PECI, BC-Link).

FAQ

What is the primary function of the MEC1703Q-C2-XY in a notebook platform?

The MEC1703Q-C2-XY serves as the central embedded controller managing power sequencing, ACPI-compliant sleep/wake transitions, keyboard/mouse interface via PS/2, thermal control using 11 PWMs and 3 tach inputs, and secure boot via hardware cryptographic engines. It replaces legacy 8051-based ECs with ARM Cortex-M4F performance and integrated VBAT-powered real-time functions essential for modern notebook instant-on behavior.

Does the MEC1703Q-C2-XY support both eSPI and LPC host interfaces simultaneously?

Yes, the MEC1703Q-C2-XY supports both eSPI and LPC host interfaces concurrently. Its pin-mapped design allows either interface to be active based on platform configuration, with eSPI operating at 1.8V and LPC supporting 19–33 MHz at 1.8V or 3.3V. This dual-interface capability enables seamless migration from legacy LPC designs to modern eSPI architectures without changing the MEC1703Q-C2-XY firmware or core logic.

What cryptographic capabilities does the MEC1703Q-C2-XY provide for secure boot?

The MEC1703Q-C2-XY includes a hardware Root of Trust with immutable Boot ROM that authenticates external SPI flash images using SHA-256 before loading. It supports AES-256 encryption for firmware images, RSA-2048 signature verification, and hardware-accelerated SHA-1/256/384/512 hashing. These features enable NIST SP 800-193–compliant secure boot, eliminating reliance on external TPM chips for basic attestation and firmware integrity checks.

How does the MEC1703Q-C2-XY handle real-time functions during system suspend?

The MEC1703Q-C2-XY maintains full real-time functionality during S3/S4/S5 suspend states using its VBAT and VTR power planes. The VBAT-powered RTC, week timer, hibernation timers, and 128-byte SRAM remain active, enabling precise wake events (down to 30 µs resolution), calendar alarms, and battery-backed data retention without main power. This ensures deterministic resume timing and persistent timekeeping across deep sleep cycles.

What is the GPIO configuration capability of the MEC1703Q-C2-XY?

The MEC1703Q-C2-XY provides up to 148 GPIOs, all configurable for 1.8V or 3.3V operation, with programmable drive strength, slew rate, and glitch filtering. Six are designated as battery-powered general-purpose outputs (BGPO), and eight support pass-through functionality. GPIOs are grouped into voltage domains aligned with VCC, VTR, and VBAT supplies-enabling mixed-voltage I/O for sensors, LEDs, buttons, and legacy peripherals without level shifters.

MEC1703Q-C2-XY Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 169-WFBGA

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Applications:: Keyboard and Embedded Controller

Core Processor:: ARM® Cortex®-M4

Program Memory Type:: -

Controller Series:: MEC170x

RAM Size:: 480K x 8

Interface:: ACPI, EBI/EMI, eSPI, I2C, LPC, PECI, PS/2, QSPI, SPI

Number of I/O:: 148

Voltage - Supply:: 1.71V ~ 3.465V

Operating Temperature:: 0°C ~ 70°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 169-WFBGA (8x8)

MEC1703Q-C2-XY FAQ

1.How can I place an order for MEC1703Q-C2-XY through Aetrix?

Please submit a Request for Quotation (RFQ) for MEC1703Q-C2-XY on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MEC1703Q-C2-XY reliable?

The price and inventory of MEC1703Q-C2-XY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MEC1703Q-C2-XY is usually 5 days.

3.What payment methods are accepted for MEC1703Q-C2-XY?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MEC1703Q-C2-XY transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MEC1703Q-C2-XY?

MEC1703Q-C2-XY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MEC1703Q-C2-XY order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MEC1703Q-C2-XY?

For technical support, including MEC1703Q-C2-XY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MEC1703Q-C2-XY requirements.

6.How does Aetrix verify that MEC1703Q-C2-XY is sourced from the original manufacturer or authorized distributors?

All MEC1703Q-C2-XY products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MEC1703Q-C2-XY meets industry standards.

7.What is the process for return or replacement of MEC1703Q-C2-XY?

All MEC1703Q-C2-XY units undergo pre-shipment inspection (PSI). If there is an issue with MEC1703Q-C2-XY, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MEC1703Q-C2-XY part is unused and in its original packaging.

Return procedure for MEC1703Q-C2-XY:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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