| PartNumber | MEC1404-NU | MEC1406-NU | MEC1408-NU |
| Description | 32-bit Microcontrollers - MCU MEC, MIPS Core 128K SRAM, LPC | 32-bit Microcontrollers - MCU MEC, MIPS Core 160K SRAM, LPC | 32-bit Microcontrollers - MCU MEC, MIPS Core 192K SRAM, LPC |
| 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 | VTQFP-128 | VTQFP-128 |
| Core | MIPS32 M14K | MIPS32 M14K | MIPS32 M14K |
| Data Bus Width | 32 bit | 32 bit | 32 bit |
| Maximum Clock Frequency | 48 MHz | 48 MHz | 48 MHz |
| Program Memory Size | 128 kB | 160 kB | 192 kB |
| Data RAM Size | 32 kB | 32 kB | 32 kB |
| ADC Resolution | 10 bit | 10 bit | 10 bit |
| Number of I/Os | 106 I/O | 106 I/O | 106 I/O |
| Operating Supply Voltage | 3.3 V | 3.3 V | 3.3 V |
| Minimum Operating Temperature | 0 C | 0 C | 0 C |
| Maximum Operating Temperature | + 70 C | + 70 C | + 70 C |
| Packaging | Tray | Tray | Tray |
| Product | MCU | MCU | MCU |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Data RAM Type | SRAM | SRAM | SRAM |
| Data ROM Type | Boot | Boot | Boot |
| Interface Type | I2C, LPC | I2C, LPC | I2C, LPC |
| Analog Supply Voltage | 3.3 V | 3.3 V | 3.3 V |
| DAC Resolution | 12 bit | 12 bit | 12 bit |
| I/O Voltage | 3.3 V | 3.3 V | 3.3 V |
| Moisture Sensitive | Yes | Yes | Yes |
| Number of ADC Channels | 8 Channel | 8 Channel | 8 Channel |
| Number of Timers/Counters | 4 x 16 bit, 1 x 32 bit | 4 x 16 bit, 1 x 32 bit | 4 x 16 bit, 1 x 32 bit |
| Processor Series | MEC14xx | MEC14xx | MEC14xx |
| Product Type | 32-bit Microcontrollers - MCU | 32-bit Microcontrollers - MCU | 32-bit Microcontrollers - MCU |
| Factory Pack Quantity | 90 | 90 | 90 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 3.6 V | 3.6 V | 3.6 V |
| Supply Voltage Min | 1.71 V | 1.71 V | 1.71 V |
| Watchdog Timers | Watchdog Timer | Watchdog Timer | Watchdog Timer |