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| PartNumber | MEC1428-I/NU-C1 | MEC1428-SZ-C1 | MEC1428-NU-C1 |
| Description | 32-bit Microcontrollers - MCU MEC, MIPS core, 192K SRAM, LPC & eSPI, 128-VTQFP | 32-bit Microcontrollers - MCU MEC, MIPS core, 192K SRAM, LPC & eSPI, 144-WFBGA | 32-bit Microcontrollers - MCU MEC, MIPS core, 192K SRAM, LPC & eSPI, 128-VTQFP |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 32-bit Microcontrollers - MCU | 32-bit Microcontrollers - MCU | 32-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | VTQFP-128 | WFBGA-144 | VTQFP-128 |
| Series | MEC1428 | MEC1428 | MEC1428 |
| Core | MIPS32 M14K | MIPS32 M14K | MIPS32 M14K |
| Data Bus Width | 32 bit | 32 bit | 32 bit |
| Maximum Clock Frequency | 33 MHz | 33 MHz | 33 MHz |
| Data RAM Size | 192 kB | 192 kB | 192 kB |
| ADC Resolution | 10 bit | 10 bit | 10 bit |
| Number of I/Os | 108 I/O | 108 I/O | 108 I/O |
| Operating Supply Voltage | 1.8 V, 3.3 V | 1.8 V, 3.3 V | 1.8 V, 3.3 V |
| Minimum Operating Temperature | - 40 C | 0 C | 0 C |
| Maximum Operating Temperature | + 85 C | + 70 C | + 70 C |
| Packaging | Tray | Tray | Tray |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | - | - |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Data RAM Type | SRAM | SRAM | SRAM |
| Data ROM Size | 32 kB | 32 kB | - |
| Interface Type | eSPI, I2C, LPC | eSPI, I2C, LPC | eSPI, I2C, LPC |
| Analog Supply Voltage | 3.135 V to 3.465 V | - | - |
| Development Kit | EVB-MEC1428MECC | - | - |
| I/O Voltage | 1.8 V, 3.3 V | 1.8 V, 3.3 V | 1.8 V, 3.3 V |
| Moisture Sensitive | Yes | Yes | Yes |
| Number of ADC Channels | 8 Channel | 8 Channel | 8 Channel |
| Number of Timers/Counters | 4 Timer, 1 Counter | - | - |
| Processor Series | MEC142X | MEC14XX | MEC14XX |
| Product Type | 32-bit Microcontrollers - MCU | 32-bit Microcontrollers - MCU | 32-bit Microcontrollers - MCU |
| Factory Pack Quantity | 90 | 260 | 90 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 1.89 V, 3.465 V | - | - |
| Supply Voltage Min | 1.71 V, 3.135 V | - | - |
| Watchdog Timers | Watchdog Timer | - | - |
| Data ROM Type | - | 32 kB | - |