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Microchip Technology MEC1609I-PZP
- Part No.:
- MEC1609I-PZP
- Manufacturer:
- Microchip Technology
- Category:
- Application Specific Microcontrollers
- Package:
- 144-LFBGA
- Datasheet:
-
MEC1609I-PZP.pdf
- Description:
- MIXED SIGNAL MOBILE EMBEDDED CON
- Quantity:
- Payment:
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Product details
Overview
MEC1609I-PZP from Microchip Technology is an industrial-grade 32-bit ARC625 embedded controller (EC) for advanced I/O subsystems in x86-based platforms. It integrates 192 KB embedded Flash, 16 KB dual-ported SRAM, LPC interface, ACPI compliance, and supports VBAT/VTR standby power planes with ≤10 µA sleep current. Used in notebook, desktop, and server platform management for thermal control, keyboard scanning, fan regulation, and system power sequencing.
For engineers reviewing the MEC1609I-PZP datasheet, MEC1609I-PZP pinout, MEC1609I-PZP application, or MEC1609I-PZP equivalent, key selection criteria include LPC host interface timing, industrial temperature support (−40°C to +85°C), BC-Link™/VLPC™ peripheral expansion capability, and integrated SMBus 2.0 controllers with DMA-driven I²C network layer hardware.
Technical Context
The MEC1609I-PZP implements a tightly coupled ARC625 CPU core with 2 KB instruction cache and AHB memory-mapped SPI Flash Read Controller, enabling direct execution from Flash with 35 ns access time. Its architecture supports concurrent EC firmware execution and host-initiated transactions via LPC, while maintaining independent operation during S3/S4/S5 states using VBAT and VTR supplies.
It features four ACPI EC interfaces (1–4 byte transfers), eight-channel DMA supporting SMBus and ECGP-SPI controllers, and three independent SMBus 2.0 host controllers capable of 400 kHz operation with clock stretching, multi-master arbitration, and hardware bus fairness-enabling robust sensor and PMIC communication without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ARC625 32-bit RISC microcontroller with 32×32×64 fast multiply, divide assist, and saturation arithmetic |
| Embedded Memory | 192 KB user Flash (32-bit, 35 ns, 1K write cycles) + 16 KB dual-ported SRAM + 2 KB instruction cache |
| LPC Interface | ACPI-compliant Intel Low Pin Count bus with LPC I/O and Trusted Cycles decoding; supports host serial/parallel IRQ and 8042-style mailbox |
| Operating Temperature | Industrial range: −40°C to +85°C - enables deployment in ruggedized computing and edge server environments |
| Power Management | Dual standby rails (VBAT/VTR); <10 µA sleep current; hibernation timers (0.5 ms–128 min); system watchdog timer |
| I/O & Peripherals | 115 GPIO pins; 18×8 keyboard scan matrix; 3× PS/2 ports; 3× SMBus 2.0 controllers; PECI 2.0; 10-bit 16-channel ADC (10 µs conversion) |
| Package | 144-pin LFBGA (10 mm × 10 mm, 0.8 mm height, RoHS compliant) |
Pinout & Package
MEC1609I-PZP is housed in a 144-pin LFBGA package (10 mm × 10 mm, 0.8 mm height, 0.8 mm pitch), RoHS compliant, optimized for high-density motherboard integration with thermal and electrical performance suitable for industrial ambient conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LAD[3:0] | LPC Address/Data Bus | Time-multiplexed 4-bit bidirectional bus for LPC configuration and data transfer with host chipset |
| LFRAME# | LPC Frame Signal | Indicates start/end of LPC transaction cycle; synchronized to PCI_CLK for timing alignment |
| LRESET# | LPC Reset Input | Asynchronous reset signal from host; initiates EC cold boot and internal state initialization |
| nSMI | System Management Interrupt | Active-low SCI event output to host for ACPI power state transitions and thermal alerts |
| SMB0[7:0]_DATA* | SMBus 0 Data Line | Multiplexed bidirectional data line for first SMBus 2.0 controller; supports clock stretching and PEC |
| PS2_DAT[2:0]* | PS/2 Data Lines | Three independent open-drain data lines for keyboard/mouse interfaces; functional in suspend power mode |
| VBAT | Standby Battery Supply | Provides continuous power to RTC, alarm timers, 64-byte VBAT-backed memory, and wake logic during main power loss |
| VTR | Standby Regulator Supply | Powers core logic, interrupt aggregator, and low-power peripherals during S3/S4/S5; enables sub-10 µA sleep current |
Key Features
| Feature | Design Value |
|---|---|
| BC-Link™ / VLPC™ Interconnect | Enables peer-to-peer and multi-drop expansion to up to four companion components (e.g., sensor hubs, secure elements) without host involvement |
| Hardware Mailbox Interface | Two register-based command interfaces allow host OS to issue commands and read status without EC firmware polling or interrupt overhead |
| DMA-Driven SMBus Controllers | Offloads I²C traffic handling from CPU; supports burst transfers, multi-master arbitration, and hardware timeout recovery |
| Integrated Clock Generator | Generates 64.52 MHz ±2% system clock from 32.768 kHz crystal; includes programmable power-gating for dynamic frequency scaling |
| FAN/PWM Subsystem | Eight 16-bit PWM outputs with independent on/off counters and four tachometer inputs enable closed-loop thermal management without host CPU cycles |
| RC_ID Pin Interface | Single GPIO identifies up to eight discrete RC networks - replaces eight dedicated GPIOs for board ID, revision detection, or calibration storage |
Applications
| Server Platform Management | Notebook Thermal Control |
|---|---|
Use Scenario: Real-time monitoring of CPU/GPU temperature, VRM status, and fan health in 1U/2U rack servers. IC Role / Device Role / Timing Role: Embedded controller managing BMC-side sensor aggregation, fan speed modulation, and ACPI-compliant power state transitions (S0iX, S3). Use Value: Enables autonomous thermal response with <10 µA sleep current and hibernation timers for scheduled wake events - reducing BMC dependency and system power envelope. |
Use Scenario: Dynamic fan curve adjustment based on GPU die temperature and battery charge state in ultrabooks. IC Role / Device Role / Timing Role: Dedicated EC executing fan PWM algorithms and ADC sampling at 10 µs resolution while host CPU remains in C6/C7 states. Use Value: Achieves silent operation under light load and rapid thermal response under load - leveraging 8-channel DMA and hardware capture/compare timers for jitter-free PWM generation. |
| Industrial PC Power Sequencing | Desktop Motherboard ACPI Engine |
Use Scenario: Controlled power-up/down sequencing of FPGA, DDR memory, and PCIe switches in factory automation IPCs. IC Role / Device Role / Timing Role: System-level power manager asserting VCC_PWRGD, nRESET_OUT, and VR_CAP signals with precise timing margins per JEDEC spec. Use Value: Guarantees deterministic power rail ramp rates and inter-rail delays using VTR/VBAT-backed hibernation timers and programmable 16-bit counter/timers - eliminating external sequencer ICs. |
Use Scenario: Enabling legacy BIOS compatibility and modern UEFI SMI handling for keyboard, mouse, and hotkey functions on ATX motherboards. IC Role / Device Role / Timing Role: ACPI EC providing 8042-style host interface, Fast GATEA20/CPU_RESET, and four ACPI EC instances for simultaneous SMI/SCI event generation. Use Value: Delivers plug-and-play compatibility with Windows/Linux power management stacks while supporting custom OEM SMI handlers via mailbox registers - no host driver modification required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar embedded controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MEC1618I-PZP | Higher Flash (256 KB), added USB 2.0 device controller, enhanced PECI 3.0 support, same ARC625 core and pinout | Required for platforms needing USB-based firmware update or PECI 3.0 CPU telemetry | Select when USB device mode or extended PECI functionality is mandatory; otherwise MEC1609I-PZP offers cost-optimized feature set. |
| ITE IT8586E | 8051-based core, 128 KB Flash, no BC-Link/VLPC, fewer SMBus controllers (2), no ARC instruction cache or DMA-driven I²C | Suitable for basic legacy I/O but lacks scalable peripheral expansion and low-latency sensor offload | Choose only for cost-sensitive designs without need for BC-Link expansion, DMA-accelerated SMBus, or industrial temp margin beyond −40°C. |
Compared with MEC1618I-PZP, the MEC1609I-PZP provides identical industrial temperature support and LPC/ACPI compatibility at lower BOM cost, while lacking USB and PECI 3.0 - making it optimal for thermally constrained, non-USB-update platforms. Versus IT8586E, it delivers superior real-time performance via ARC625, hardware DMA, and scalable interconnect - critical for multi-sensor server and edge compute use cases.
Availability
MEC1609I-PZP is available at Aetrix Electronics and suitable for server platform management, notebook thermal control, industrial PC power sequencing, and desktop motherboard ACPI engine applications requiring stable component supply across extended lifecycle programs.
Supply support for MEC1609I-PZP 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 devices, and Flash-IP solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations certified to ISO/TS-16949.
The MEC1609I-PZP belongs to Microchip's Mixed Signal Mobile Embedded Flash ARC EC family, designed specifically for x86 platform I/O subsystems requiring industrial reliability, low-power standby operation, and scalable peripheral interconnect via BC-Link™ and VLPC™.
FAQ
What is the operating temperature range of the MEC1609I-PZP?
The MEC1609I-PZP is rated for the industrial temperature range of −40°C to +85°C. This specification is validated across all functional blocks including the ARC625 core, embedded Flash, SRAM, LPC interface, and SMBus controllers - ensuring reliable operation in harsh thermal environments such as edge servers and factory automation systems. The MEC1609I-PZP achieves this via process and packaging optimizations distinct from the commercial-grade MEC1609-PZP.
Does the MEC1609I-PZP support direct Flash programming via LPC interface?
Yes, the MEC1609I-PZP supports full Flash programming-including erase, program, and lock operations-via the LPC interface. This enables in-system firmware updates without JTAG or dedicated programmers. The 192 KB Flash includes 4 KB boot block protection and two LPC-protected pages near the top of memory for secure password storage, all accessible through standard LPC I/O cycles defined in the ACPI EC specification.
How many SMBus controllers does the MEC1609I-PZP integrate, and what are their capabilities?
The MEC1609I-PZP integrates three independent SMBus 2.0 host controllers (SMB0–SMB2), each supporting master and dual-slave operation, clock stretching, multi-master arbitration, and programmable bus speeds up to 400 kHz. All three controllers remain fully operational in standby power mode (VTR/VBAT), and their DMA-driven I²C network layer hardware eliminates CPU polling overhead during sensor reads or PMIC configuration.
What is the purpose of the BC-Link™ and VLPC™ interfaces in the MEC1609I-PZP?
The BC-Link™ interface in the MEC1609I-PZP provides peer-to-peer communication with up to four companion components (e.g., secure elements or sensor hubs), while VLPC™ supports a multi-drop topology with up to three untrusted and one trusted companion. These interfaces allow the MEC1609I-PZP to extend its peripheral set without host involvement - enabling scalable, modular I/O architectures in space-constrained platforms where LPC bandwidth is limited.
Can the MEC1609I-PZP operate independently during system suspend states?
Yes, the MEC1609I-PZP operates autonomously during S3 (suspend-to-RAM), S4 (hibernate), and S5 (soft-off) states using dedicated VTR and VBAT power planes. It maintains real-time functions including hibernation timers (0.5 ms–128 min), week alarm wake-up, fan PWM control, keyboard scan, and SMBus sensor polling - all without host CPU or chipset involvement. This independence is fundamental to its role as a platform management engine in modern x86 systems.
MEC1609I-PZP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 144-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, VLPC
- Number of I/O:
- 115
- Voltage - Supply:
- 3.3V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 144-LFBGA (10x10)
MEC1609I-PZP FAQ
1.How can I place an order for MEC1609I-PZP through Aetrix?
Please submit a Request for Quotation (RFQ) for MEC1609I-PZP 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 MEC1609I-PZP reliable?
The price and inventory of MEC1609I-PZP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MEC1609I-PZP is usually 5 days.
3.What payment methods are accepted for MEC1609I-PZP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MEC1609I-PZP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MEC1609I-PZP?
MEC1609I-PZP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MEC1609I-PZP 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 MEC1609I-PZP?
For technical support, including MEC1609I-PZP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MEC1609I-PZP requirements.
6.How does Aetrix verify that MEC1609I-PZP is sourced from the original manufacturer or authorized distributors?
All MEC1609I-PZP 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 MEC1609I-PZP meets industry standards.
7.What is the process for return or replacement of MEC1609I-PZP?
All MEC1609I-PZP units undergo pre-shipment inspection (PSI). If there is an issue with MEC1609I-PZP, 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 MEC1609I-PZP part is unused and in its original packaging.
Return procedure for MEC1609I-PZP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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