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Microchip Technology MEC1703Q-C2-TN
- Part No.:
- MEC1703Q-C2-TN
- Manufacturer:
- Microchip Technology
- Category:
- Application Specific Microcontrollers
- Package:
- 169-WFBGA
- Datasheet:
-
MEC1703Q-C2-TN.pdf
- Description:
- MCU EMBEDDED CONTROLLER 480KB SR
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MEC1703Q-C2-TN from Microchip Technology is an ARM Cortex-M4F-based embedded controller optimized for notebook and tablet platform power management, keyboard scanning, and system control. It integrates 256KB–480KB SRAM, 2KB EEPROM, 16-channel 10-bit ADC, 11 PWM outputs, and hardware cryptographic engines (AES-128/192/256, SHA-1/256/384/512, RSA/ECC). It operates with LPC or eSPI host interface at 1.8V/3.3V and supports VBAT-powered RTC, hibernation timers, and ACPI-compliant sleep states.
For engineers reviewing the MEC1703Q-C2-TN datasheet, MEC1703Q-C2-TN pinout, MEC1703Q-C2-TN application, or MEC1703Q-C2-TN equivalent, key selection criteria include its dual-host-interface flexibility (LPC/eSPI), secure boot with immutable RoT, battery-backed 128-byte SRAM and RTC, 148 GPIOs with 1.8V/3.3V I/O support, and integrated PECI 3.0 and BC-Link for companion device expansion.
Technical Context
The MEC1703Q-C2-TN 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, ITM, ETM, TPIU). Its memory subsystem includes configurable SRAM blocks (e.g., 224KB code + 32KB data or 416KB code + 64KB data), 64KB boot ROM, and 128-byte VBAT-SRAM for persistent state retention during S5/S4.
Power architecture features three independent supply domains: VCC (runtime), VTR (standby), and VBAT (battery backup), enabling sub-millisecond wake from deep sleep using 32.768 kHz oscillator. The device supports both LPC (19–33 MHz) and Intel eSPI (Peripheral/VW/OOB/Flash channels) host interfaces, with dedicated EC-ACPI, 8042 emulation, and five ACPI-ECI instances for host communication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M4F with hardware FPU and bit-banding; enables deterministic real-time firmware execution and floating-point math for thermal/fan control algorithms. |
| SRAM | 256KB–480KB total (configurable as 224KB+32KB, 288KB+64KB, or 416KB+64KB); supports simultaneous code/data execution in Von Neumann model. |
| EEPROM | 2KB, 32-byte page size, 1M write cycles; stores non-volatile platform configuration, calibration data, or secure keys without external memory. |
| ADC | 16-channel, 10-bit, 1µs conversion time, ±1.5 LSB INL; monitors thermistors, voltage rails, and battery parameters with high-speed sampling. |
| PWM Outputs | 11 × 16-bit PWMs with RPM-based fan speed control; achieves 3% accuracy from 500–16k RPM and supports spin-up ramping and aging detection. |
| Crypto Engines | Dedicated AES (ECB/CTR/CBC/OFB), SHA-1/256/384/512, RSA-1024/2048, ECC-640; offloads secure boot, firmware authentication, and runtime encryption from main CPU. |
| Host Interface | eSPI and LPC dual-support; allows drop-in replacement in legacy LPC designs or migration to modern eSPI platforms without silicon change. |
| GPIO Count | 148 pins with programmable drive strength, slew rate, and glitch filtering; supports mixed 1.8V/3.3V I/O banks for direct connection to diverse peripherals. |
Pinout & Package
MEC1703Q-C2-TN is housed in a 169-pin WFBGA package (RoHS compliant) with 0.5 mm pitch and 10 mm × 10 mm body size. Pin assignment follows Microchip's standardized ball map for the MEC170x TN package variant, supporting full LPC/eSPI signal routing, VBAT/VTR power domains, and dedicated debug interfaces (SWD/JTAG, TFDP, Port 80).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VTR, VBAT | Power supply inputs | Independent domains enable S0–S5 power state transitions; VBAT retains RTC, 128B SRAM, and alarm registers during main power loss. |
| LPC_AD[0:3], LCLK, LRESET# | LPC bus signals | Supports 19–33 MHz LPC operation with 1.8V/3.3V I/O; compatible with Intel PCH LPC controllers and ISA Plug-and-Play enumeration. |
| eSPI_CS#, eSPI_CLK, eSPI_IO[0:3] | eSPI physical layer | Complies with Intel eSPI v1.1; enables Peripheral, Virtual Wire, OOB, and Flash channel communication with host PCH. |
| SWDIO, SWCLK, nRESET | JTAG/SWD debug interface | Enables full ARM-standard debug access (SWJ-DP) including breakpoints, watchpoints, trace, and secure firmware validation. |
| GPIO_0–GPIO_147 | General-purpose I/O | Configurable as input/output/pull-up/pull-down; most support glitch filtering and 1.8V operation-ideal for keyboard matrix, LED control, and sensor interfacing. |
| RTC_XIN, RTC_XOUT | 32.768 kHz crystal oscillator | Drives VBAT-powered RTC, hibernation timer, and week timer; supports crystal-free mode with ±2% internal oscillator if external crystal omitted. |
Key Features
| Feature | Design Value |
|---|---|
| Secure Boot with Hardware RoT | Boot ROM validates SPI flash image signature before loading; enforces immutable secure firmware execution and prevents unauthorized code injection. |
| ACPI-ECI & 8042 Emulation | Five independent ACPI Embedded Controller Interface instances plus full 8042 keyboard/mouse controller logic-enables seamless BIOS/UEFI integration without host driver changes. |
| VBAT-Powered Subsystem | RTC, 128B SRAM, week timer, power-fail status, and five wake-up inputs remain active on battery only-supports instant-on resume and long-term hibernation. |
| Hardware Cryptographic Acceleration | AES/SHA/RSA/ECC engines share DMA access to SRAM; reduces CPU load and latency for TPM-like operations and firmware update authentication. |
| Flexible Fan Control | Two RPM-based controllers each with dedicated tach input and PWM output; includes automatic spin-up, ramp rate control, and invalid-drive detection for reliable thermal management. |
| Multi-Protocol Serial Interfaces | Four SMBus 2.0 hosts (1 MHz, DMA-driven), two UARTs (8-pin/4-pin), one Quad SPI master, and two BC-Link buses-eliminates need for external protocol bridges. |
Applications
| Ultra-Thin Notebook Power Management | 2-in-1 Tablet System Control |
|---|---|
Use Scenario: Managing S0ix/S3/S4/S5 transitions, battery charging, thermal throttling, and lid-open/wake events in fanless ultrabooks. IC Role / Device Role / Timing Role: Primary embedded controller executing ACPI-compliant power state machine, reading ADC sensors, and driving PWM fans via hardware RPM control loops. Use Value: Reduces platform BOM by integrating RTC, crypto, ADC, and fan control-enabling single-chip system management without discrete PMIC or security IC. | Use Scenario: Coordinating detachable keyboard, stylus charging, orientation sensing, and instant-on resume in convertible tablets. IC Role / Device Role / Timing Role: Host-facing EC managing PS/2 keyboard scan, eSPI virtual wires for hinge/rotation events, and VBAT-backed RTC for accurate suspend/resume timing. Use Value: Leverages 148 GPIOs and 5 EC-ACPI instances to handle multiple peripheral interfaces simultaneously while maintaining sub-100ms wake latency from S0i3. |
| Enterprise Laptop Security Subsystem | Industrial Thin Client I/O Hub |
Use Scenario: Providing hardware-rooted secure boot, firmware integrity verification, and encrypted storage key management in corporate laptops. IC Role / Device Role / Timing Role: Trusted execution environment hosting measured boot chain, validating signed firmware images against public keys stored in eFUSE or OTP. Use Value: Integrates AES-256, SHA-512, and RSA-2048 engines with secure boot ROM-meets TPM 2.0 functional requirements without external security chip. | Use Scenario: Acting as central I/O concentrator in fanless industrial thin clients, aggregating keyboard, display backlight, temperature sensors, and remote management signals. IC Role / Device Role / Timing Role: Mixed-signal controller interfacing 16-channel ADC for environmental monitoring, 4 breathing LEDs for status indication, and BC-Link to companion I/O expander. Use Value: Combines 107–148 GPIOs, RC_ID ports for cost-sensitive analog sensing, and 2KB EEPROM for field-updatable configuration-reducing external component count by ≥30%. |
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-SZ | 144-pin WFBGA package; 123 GPIOs; identical feature set except reduced GPIO count and no BGPO6/VCI6 signals. | Suitable for space-constrained designs where full 148 GPIOs and 6 battery-backed outputs are not required. | Select MEC1703Q-C2-SZ when PCB layout area is limited and platform does not require all 148 GPIOs or six BGPOs. |
| MEC1703Q-C2-XY | 169-pin WFBGA package; same pin count as TN but different ball-out mapping; includes UPD dead-battery support not present in TN variant. | Required for platforms needing undervoltage protection (UPD) during battery depletion scenarios. | Choose MEC1703Q-C2-XY only if UPD functionality is mandatory; otherwise, TN offers identical core capabilities at broader availability. |
Compared with MEC1703Q-C2-SZ and MEC1703Q-C2-XY, the MEC1703Q-C2-TN delivers maximum GPIO count (148), full battery-backed general-purpose output support (6 BGPOs), and broadest distribution across notebook OEMs-making it the preferred choice for flagship platform designs requiring full I/O scalability and VBAT subsystem completeness.
Availability
MEC1703Q-C2-TN is available at Aetrix Electronics and suitable for ultra-thin notebook power management, 2-in-1 tablet system control, and enterprise laptop security subsystems requiring stable component supply, long lifecycle support, and consistent firmware compatibility across production batches.
Supply support for MEC1703Q-C2-TN 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 microcontrollers, analog components, and Flash-IP solutions, serving automotive, industrial, communications, and computing markets with vertically integrated silicon and development tools.
The MEC170x product line was designed specifically for intelligent power and system management in mobile computing platforms, integrating ARM Cortex-M4F processing, hardware security, and multi-protocol I/O into a single embedded controller optimized for ACPI compliance and battery longevity.
FAQ
What host interfaces does the MEC1703Q-C2-TN support?
The MEC1703Q-C2-TN supports both Intel Low Pin Count (LPC) and enhanced Serial Peripheral Interface (eSPI) host interfaces. It operates LPC at 19–33 MHz with 1.8V/3.3V I/O compatibility and fully complies with Intel eSPI v1.1 specifications across Peripheral, Virtual Wire, Out-of-Band, and Flash channels. This dual-interface capability allows flexible integration into legacy LPC platforms or next-generation eSPI architectures without redesigning the MEC1703Q-C2-TN firmware stack.
Does the MEC1703Q-C2-TN include hardware cryptographic acceleration?
Yes, the MEC1703Q-C2-TN integrates three dedicated hardware cryptographic engines: an AES engine supporting ECB/CTR/CBC/OFB modes with 128/192/256-bit keys; a SHA engine covering SHA-1, SHA-256, SHA-384, and SHA-512; and a public-key engine for RSA-1024/2048 and ECC up to 640 bits. These engines share DMA access to SRAM and are used by the MEC1703Q-C2-TN's secure boot loader to authenticate SPI flash images and enforce hardware-rooted trust.
How much memory does the MEC1703Q-C2-TN provide for firmware and data storage?
The MEC1703Q-C2-TN provides up to 480KB of on-chip SRAM, configurable as two independent blocks-for example, 416KB for program code and 64KB for data, or 224KB/288KB splits. It also includes 64KB boot ROM containing the secure bootloader, 2KB of EEPROM for non-volatile configuration storage, and 128 bytes of battery-backed SRAM retained during S5. This memory architecture enables complex firmware with real-time response, secure updates, and persistent state maintenance in the MEC1703Q-C2-TN.
What is the GPIO capability of the MEC1703Q-C2-TN?
The MEC1703Q-C2-TN offers up to 148 general-purpose I/O pins, all configurable for 1.8V operation and most featuring glitch filtering. It includes 8 GPIO pass-through ports, 6 battery-powered general-purpose outputs (BGPOs), and programmable drive strength and slew rate per pin. These GPIOs directly support keyboard matrix scanning (18×8), LED control (4 breathing/brightening interfaces), RC-ID sensing, and sensor interfacing-making the MEC1703Q-C2-TN ideal for highly integrated system control applications.
Is the MEC1703Q-C2-TN qualified for notebook and tablet platforms?
Yes, the MEC1703Q-C2-TN is explicitly designed and qualified for notebook and tablet platforms, as confirmed by Microchip's DS00002206H datasheet and system block diagrams. It meets ACPI compliance requirements, supports Connected Standby (S0ix), integrates VBAT-powered RTC and hibernation timers, and provides native LPC/eSPI host interfaces aligned with Intel PCH specifications. Its power architecture, thermal management features (11 PWMs, 3 TACH inputs), and secure boot capability make the MEC1703Q-C2-TN a production-ready solution for commercial and enterprise mobile computing systems.
MEC1703Q-C2-TN 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:
- EEPROM (2kB), Boot ROM (64kB)
- 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 (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 169-WFBGA (11x11)
MEC1703Q-C2-TN FAQ
1.How can I place an order for MEC1703Q-C2-TN through Aetrix?
Please submit a Request for Quotation (RFQ) for MEC1703Q-C2-TN 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-TN reliable?
The price and inventory of MEC1703Q-C2-TN 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-TN is usually 5 days.
3.What payment methods are accepted for MEC1703Q-C2-TN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MEC1703Q-C2-TN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MEC1703Q-C2-TN?
MEC1703Q-C2-TN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MEC1703Q-C2-TN 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-TN?
For technical support, including MEC1703Q-C2-TN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MEC1703Q-C2-TN requirements.
6.How does Aetrix verify that MEC1703Q-C2-TN is sourced from the original manufacturer or authorized distributors?
All MEC1703Q-C2-TN 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-TN meets industry standards.
7.What is the process for return or replacement of MEC1703Q-C2-TN?
All MEC1703Q-C2-TN units undergo pre-shipment inspection (PSI). If there is an issue with MEC1703Q-C2-TN, 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-TN part is unused and in its original packaging.
Return procedure for MEC1703Q-C2-TN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MEC1703Q-C2-TN Tags
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CYPD3175-24LQXQ
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SLB9672VU20FW1523XTMA1
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SLB9670VQ20FW785XTMA1
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SLB9673XU20FW2613XTMA1
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CYPD3125-40LQXIT
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AT97SC3204-U2A1A-20
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AT97SC3204-U2A1A-10
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SLM9670AQ20FW1311XTMA1
Infineon Technologies
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SLB9672XU20FW1613XTMA1
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SLB9673AU20FW2613XTMA1
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