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Microchip Technology MEC1633X-AUE
- Part No.:
- MEC1633X-AUE
- Manufacturer:
- Microchip Technology
- Category:
- Application Specific Microcontrollers
- Package:
- 169-LFBGA
- Datasheet:
-
MEC1633X-AUE.pdf
- Description:
- IC EMBEDDED CTLR 169LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:176
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Product details
Overview
MEC1633X-AUE from Microchip Technology is a 32-bit ARC625D-based embedded controller for laptop and ultrabook platform power management, featuring 192 KB embedded Flash, 16 KB dual-ported SRAM, ACPI-compliant LPC interface (19.2–33 MHz), and VTR/VBAT standby power planes with sub-10 µA sleep current.
For engineers reviewing the MEC1633X-AUE datasheet, MEC1633X-AUE pinout, MEC1633X-AUE application, or MEC1633X-AUE equivalent, this device serves as the core EC in split-architecture I/O controllers, supporting BC-Link interconnection, SMBus 2.0 host control, PECI 3.0 thermal telemetry, and hardware-accelerated ACPI messaging with four independent EC interfaces.
Technical Context
The MEC1633X-AUE implements a dedicated ARC625D CPU core with tightly coupled instruction and data memory, enabling deterministic real-time response for system power state transitions and hardware wake event handling. Its interrupt aggregator accelerates SMI/SCI generation, while the JTAG master capability allows in-system firmware update without host intervention.
It integrates dual-power-domain logic (VTR/VBAT) to maintain RTC, alarm timers, and battery-backed 64-byte memory during deep suspend. The BC-Link interface supports peer-to-peer communication with up to three companion devices using two high-speed and one low-speed bus masters, decoupling EC functions from host CPU load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LPC Bus Frequency | 19.2–33 MHz - Enables full compatibility with Intel chipset LPC timing requirements without clock stretching penalties. |
| Embedded Flash | 192 KB, 32-bit access, 10K write cycles - Supports field-upgradable EC firmware with secure boot block protection and JTAG/BIOS/LPC programming paths. |
| SRAM | 16 KB single-cycle dual-ported - Allows concurrent EC execution and host DMA access to shared memory windows for fast mailbox communication. |
| SMBus Controllers | Four independent SMBus 2.0 hosts - Each supports master/dual-slave operation, DMA-driven I²C layer, clock stretching, and up to 400 kHz bus speed for sensor/charger IC interfacing. |
| ADC | 10-bit, 16-channel, 10 µs conversion - Provides accurate thermal monitoring across six remote diodes and internal sensor with ±1°C accuracy (60–100°C range). |
| GPIO Count | 135 pins with glitch filtering - Enables direct connection to keyboard scan matrix (18×8), PS/2 ports, LED drivers, fan tachometers, and RC_ID resistor-capacitor identification circuits. |
| Package | 169-pin LFBGA (11 mm × 11 mm × 0.8 mm pitch) - RoHS-compliant footprint optimized for thin-profile mobile motherboard layouts with thermal pad exposure. |
Pinout & Package
MEC1633X-AUE is housed in a 169-pin LFBGA package with exposed thermal pad, supporting reflow soldering per JEDEC J-STD-020D. Pin functions are multiplexed across LPC, SMBus, PS/2, GPIO, and debug interfaces as defined in Microchip DS00001775B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LAD[3:0] | LPC Address/Data Bus | Time-multiplexed 4-bit bidirectional bus for configuration register access and host-to-EC command/data transfer. |
| LFRAME# | LPC Frame Signal | Active-low strobe indicating start of LPC transaction cycle; synchronized to PCI_CLK for timing alignment. |
| SMB[11:00]_DATA* | SMBus Data Line | Multiplexed bidirectional open-drain line shared across 12 assignable ports; supports clock stretching and multi-master arbitration. |
| KSO[17:0]/KSI[7:0] | Keyboard Scan Output/Input | 18-row × 8-column matrix interface with push-pull drive option for fast keypress detection and debouncing. |
| PECI_DAT | PECI 3.0 Data | Single-wire bidirectional interface for processor thermal telemetry and platform health reporting at up to 2 Mbps. |
| JTAG_TDI/TDO/TMS/TCK | JTAG Test Access Port | IEEE 1149.1-compliant boundary-scan and debug interface; EC can act as JTAG master to program companion devices. |
Key Features
| Feature | Design Value |
|---|---|
| ACPI Embedded Controller Interface | Four independent instances with 1/4-byte transfer capability and full-duplex register access - enables simultaneous SCI event generation for multiple power domains. |
| Battery-Backed Resources | VBAT-powered 32.768 kHz oscillator, week alarm timer (1 ms–45 days wakeup), six wake inputs with latching - sustains real-time clock and scheduled resume during full system shutdown. |
| Low-Power LED Interface | Three LED pins supporting blinking, breathing (piecewise-linear PWM), and 8-bit PWM modes - operates in deepest EC sleep state using only 32 kHz standby clock. |
| Thermal Monitoring | Supports six external diodes (three parallel + three anti-parallel) with beta compensation and resistance error correction - delivers ±1°C accuracy for CPU/GPU thermal management without external ADC. |
| BC-Link Interconnection | Two HS-masters + one LS-master for peer-to-peer communication with companion I/O devices - eliminates host CPU polling overhead and enables distributed sensor/fan control. |
Applications
| Mobile Platform Power Management | Laptop Thermal Control System |
|---|---|
Use Scenario: Managing S0–S5 power states, battery charging, lid open/close detection, and keyboard backlight sequencing in Windows-based notebooks. IC Role / Device Role / Timing Role: Primary embedded controller executing ACPI-defined power transition logic and coordinating wake events via LPC and VBAT domain signals. Use Value: Reduces platform power consumption by >40% in S3/S4 states through hardware-managed VTR/VBAT isolation and sub-10 µA deep-sleep current. | Use Scenario: Real-time thermal monitoring of CPU, GPU, and SSD using remote diode sensors and dynamic fan speed adjustment via six PWM outputs. IC Role / Device Role / Timing Role: Dedicated thermal manager interfacing with processor PECI 3.0 bus and six external diodes while driving fan tachometer feedback loops. Use Value: Achieves ±1°C thermal accuracy from 60°C to 100°C and enables predictive thermal throttling before critical junction temperatures are reached. |
| Keyboard/PS/2 Subsystem Controller | System Debug & Firmware Update Hub |
Use Scenario: Scanning 18×8 keyboard matrix, managing three independent PS/2 ports (keyboard/mouse/touchpad), and detecting keypress wake events during suspend. IC Role / Device Role / Timing Role: Hardware-accelerated input subsystem controller with edge-triggered wake capability on all KSO/KSI lines and PS/2 clock/data pins. Use Value: Eliminates host CPU polling latency; enables <50 ms wake-from-suspend response time for keyboard and PS/2 peripherals. | Use Scenario: Enabling in-field EC firmware updates, BIOS debug trace capture, and JTAG-based validation during manufacturing and repair. IC Role / Device Role / Timing Role: Centralized debug hub providing Port 80h timestamped FIFO, MCU serial debug port (16C550 interface), JTAG master, and gang-programmer interface. Use Value: Supports zero-host-intervention firmware recovery and 2 MB/s debug throughput for real-time trace analysis during system bring-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar embedded controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IT8586E | 8051-based core, 128 KB Flash, no BC-Link, single SMBus controller, no PECI interface | Limited to basic ACPI EC functions; lacks hardware acceleration for multi-device I/O architectures | Choose for cost-sensitive legacy designs requiring only ISA Plug-and-Play compatibility and minimal peripheral integration. |
| ENE KB9xx Series | ARM Cortex-M0+ core, 64 KB Flash, no VBAT domain, no embedded SRAM, no BC-Link | Targeted at simple keyboard controllers; lacks thermal monitoring, fan control, and battery-backed RTC functionality | Choose only for non-thermal, non-power-management roles where PS/2 and basic GPIO sufficiency is confirmed. |
Compared with IT8586E and ENE KB9xx Series, the MEC1633X-AUE provides superior integration for advanced mobile platforms-delivering BC-Link scalability, PECI 3.0 telemetry, VBAT-retained alarm timers, and hardware-accelerated ACPI messaging that neither alternative supports.
Availability
MEC1633X-AUE is available at Aetrix Electronics and suitable for laptop platform design, ultrabook power management systems, and embedded thermal control applications requiring stable component supply across extended temperature ranges (0°C to +85°C).
Supply support for MEC1633X-AUE 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 is a global semiconductor company specializing in microcontrollers, analog components, and connectivity solutions for embedded systems.
The MEC1633X-AUE belongs to Microchip's Mobile Embedded Controller product line, designed specifically for ACPI-compliant power management, thermal telemetry, and I/O subsystem control in space-constrained mobile computing platforms.
FAQ
What is the operating voltage range for the MEC1633X-AUE?
The MEC1633X-AUE operates at 3.3 V nominal supply voltage for its main logic domain (VCC), with separate VTR (standby) and VBAT (battery backup) power planes. This dual-supply architecture enables sub-10 µA sleep current and retention of RTC, alarm timers, and 64-byte memory during full system shutdown. All I/O pins are 3.3 V tolerant unless otherwise specified in the absolute maximum ratings table of DS00001775B.
Does the MEC1633X-AUE support in-system firmware updates?
Yes, the MEC1633X-AUE supports multiple in-system programming methods: JTAG interface (with EC acting as master), LPC-based BIOS updates, UART-triggered programming at power-on, and gang programming via dedicated interface. Its 192 KB embedded Flash includes 4 KB boot block protection and dual LPC/JTAG-protected pages for password-secured firmware updates, ensuring robust field upgrade capability without hardware modification.
How many SMBus controllers does the MEC1633X-AUE integrate?
The MEC1633X-AUE integrates four independent SMBus 2.0 host controllers, each capable of master or dual-slave operation. These controllers remain fully functional on standby power, support DMA-driven I²C network layer hardware, clock stretching, programmable bus speeds up to 400 kHz, and hardware fairness arbitration. Twelve assignable ports and three SMBus isolation switches enable flexible topology configuration across sensor, charger, and battery management ICs.
What thermal monitoring capabilities does the MEC1633X-AUE provide?
The MEC1633X-AUE monitors temperatures using up to six external diodes (three parallel + three anti-parallel configurations) and one internal diode, achieving ±1°C accuracy between 60°C and 100°C. It includes resistance error correction, beta compensation for processor diodes, and a voltage-programmable fail-safe monitor with thermal shutdown set by a single external 1% resistor. This eliminates need for external thermal ADCs in most laptop thermal management designs.
Is the MEC1633X-AUE pin-compatible with earlier MEC16xx variants?
No, the MEC1633X-AUE is not pin-compatible with prior MEC16xx family members such as MEC1322 or MEC1428. While sharing architectural similarities, it uses a distinct 169-pin LFBGA package with revised pin mapping for enhanced BC-Link, PECI 3.0, and SMBus routing. Migration requires PCB layout revision and firmware adaptation to leverage new features like dual HS/LS BC-Link masters and hardware-accelerated interrupt aggregation.
MEC1633X-AUE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 169-LFBGA
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Applications:
- I/O Controller
- Core Processor:
- ARC-625D
- Program Memory Type:
- FLASH (192kB)
- Controller Series:
- -
- RAM Size:
- 16K x 8
- Interface:
- ACPI, BC-Link, I2C/SMBus, LPC, PECI, PS/2, SPI
- Number of I/O:
- 135
- Voltage - Supply:
- 3.3V
- Operating Temperature:
- 0°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 169-LFBGA (11x11)
MEC1633X-AUE FAQ
1.How can I place an order for MEC1633X-AUE through Aetrix?
Please submit a Request for Quotation (RFQ) for MEC1633X-AUE 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 MEC1633X-AUE reliable?
The price and inventory of MEC1633X-AUE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MEC1633X-AUE is usually 5 days.
3.What payment methods are accepted for MEC1633X-AUE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MEC1633X-AUE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MEC1633X-AUE?
MEC1633X-AUE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MEC1633X-AUE 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 MEC1633X-AUE?
For technical support, including MEC1633X-AUE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MEC1633X-AUE requirements.
6.How does Aetrix verify that MEC1633X-AUE is sourced from the original manufacturer or authorized distributors?
All MEC1633X-AUE 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 MEC1633X-AUE meets industry standards.
7.What is the process for return or replacement of MEC1633X-AUE?
All MEC1633X-AUE units undergo pre-shipment inspection (PSI). If there is an issue with MEC1633X-AUE, 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 MEC1633X-AUE part is unused and in its original packaging.
Return procedure for MEC1633X-AUE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MEC1633X-AUE Tags
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