MEC1428-I/NU-C1 Microcontrollers - MCU by Microchip Technology

Embedded Controller

Status: Active
Series: MEC1428
RoHS: Compliant
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MEC1428 is the latest member of the MEC14XX family and adds a new level of design functionality for computing engineers by adding Slave Attached Flash (SAF), which is an optimal solution for USB Type-Câ„¢ power delivery. This device is pin and register compatible with the MEC140X and MEC141X families, which allows designers to easily add eSPI and additional features and have more flexibility in their designs. It retains eSPI Master Attached Flash (MAF) capability. 

The MEC14xx family is a keyboard and embedded controller customized for notebooks and computing platforms. The MEC140X/1X/2X family is a highly-configurable, mixed signal, advanced I/O controller architecture. MEC1428 incorporates a 32-bit MIPS32 M14K Microcontroller core with 192 KB of closely-coupled SRAM for code and data that loads from SPI Flash. Designers can leverage the host SPI-flash (used for BIOS storage) for non-volatile EC firmware storage, as a cost-effective system solution. 

Microchip’s MEC14XX family also provides a flexible arrangement that allows multiple I/O signals to be configured to support either 3.3V or 1.8V, reducing the system bill-of-materials cost by eliminating the need for external voltage translators. The MEC1428 communicates with the system host through the Intel Enhanced Serial Peripheral Interface (eSPI) or through Intel's Low Pin Count (LPC). 

All members of the MEC14XX family are pin and register compatible and are supported by Microchip’s development tools. Examples include the MPLAB® XC Compilers, the MPLAB REAL ICEâ„¢ In-Circuit Emulator (part # DV244005), the MPLAB ICD 3 In-Circuit Debugger (part # DV164035) and the PICkitâ„¢ 3 Starter Kit (part # DV164130).

Additional products with eSPI capability: MEC1418, MEC1701, MEC1704, MEC1705

Family parts
MEC1428-I/NU-C1
MEC1428-NU-C1
MEC1428-SZ-C1
MEC1428-SZ-C1-TR
MEC1428-TF-C1
MEC1428-TF-C1-TR

Where to Buy

Prices starting from US$3.20

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Features

MIPS32® M14K™ MIcrocontroller Core
Enhanced Serial Peripheral Interface (eSPI) or LPC Host Interface
Supports Slave Attached Flash Sharing (SAFS)
ACPI 3.0 Compliant
PC2001 Compliant
VTR (standby) and VBAT (Power Planes)
Connected Standby Support
8042 Emulated Keyboard Controller
Secure Boot ROM Loader
System to EC Message Interface
Trace FIFO Debug Port (TFDP)
32-bit RTOS Timer

Specifications

Keyboard Scan Matrix 18x8
UART Full
Customer Programmable RAM Yes
Host Interface eSPI, LPC, I2C
Code Storage 192 KB SRAM (Code + Data)
Operating Temperature 0° C to +70° C
Low Power Timers 0
Tach 0
Fan Tachometer Inputs 2
8024 Keyboard Controller Yes
PCI Resets 0
Data RAM 32kB
HW Auto Fan Controller 0
Breathing/ Blinking LED 3
GPIO 106
PWM 0
Package 128 VTQFP
LED 3
Analog to Digital Converter 8
Capture/_Compare 0
Temp Monitoring 0
SMBus Ports 0
BC Link 2
SPI_Host 0
EEPROM 0
AMD SB-TSI 1
PECI 0
ACPI Interfaces 5
Counter/Timers 4
Pins | Packaging 128 | TQFP
Temp Range -40C to +85C
Packing Media Tray (90)

Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.5575
Shipping Weight (kg) 1.8
Lead Count 128
Package Type TQFP
Package Width or Size 14x14x1mm
Soldering Composition Matte Tin

Alternative Descriptions

Keyboard and Embedded Controller for Notebook PC | Microchip Technology
MEC, MIPS core, 192K SRAM, LPC & eSPI, 1 | RS
Mcu, 32Bit, Mips, Vtqfp-128 | Newark Electronics
MCU 32-Bit MEC142x MIPS32 M4K RISC 1.71V to 3.465V 128-Pin VTQFP Tray | Avnet America
MCU, 32BIT, MIPS, VTQFP-128 | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a MEC1428-I/NU-C1?

Additional datasheets, footprints and schematics for MEC1428-I/NU-C1 are listed on our Part Details page. You can also find images and similar parts to MEC1428-I/NU-C1 on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for MEC1428-I/NU-C1 on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MEC1428-I/NU-C1 price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does MEC1428-I/NU-C1 fall under?

The MEC1428-I/NU-C1 is listed under Semiconductors - ICs > Microcontrollers - MCU > Application Specific Microcontrollers - MCU.

Can I view similar or alternative parts?

You can view similar parts to MEC1428-I/NU-C1 when available in the Application Specific Microcontrollers - MCU range under the specifications section at the bottom of the details page.

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Submit any questions directly to the customer support team of the distributor listing the product. For the MEC1428-I/NU-C1 you can contact the distributor directly for product support, shipping queries etc.

Is the MEC1428-I/NU-C1 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

Which authorised distributors for MEC1428-I/NU-C1 have stock available?

Authorised distributors including Microchip Technology, RS, Newark Electronics, Avnet America and element14 have stock available or on a lead time for MEC1428-I/NU-C1.

How do I check stock and lead times for all distributors?

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