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| PartNumber | MCF51MM256VLL | MCF51MM256VLK | MCF51MM256VLL557 |
| Description | 32-bit Microcontrollers - MCU 32BIT 256K FLASH | 32-bit Microcontrollers - MCU 32BIT 256K FLASH | - Bulk (Alt: MCF51MM256VLL557) |
| Manufacturer | NXP | NXP | - |
| Product Category | 32-bit Microcontrollers - MCU | 32-bit Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | LQFP-100 | LQFP-80 | - |
| Series | MCF51MM | MCF51MM | - |
| Core | ColdFire V1 | ColdFire V1 | - |
| Data Bus Width | 32 bit | 32 bit | - |
| Maximum Clock Frequency | 50 MHz | 50.33 MHz | - |
| Program Memory Size | 256 kB | 256 kB | - |
| Data RAM Size | 32 kB | 32 kB | - |
| ADC Resolution | 16 bit | 16 bit | - |
| Number of I/Os | 65 I/O | 47 I/O | - |
| Operating Supply Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 105 C | + 105 C | - |
| Packaging | Tray | Tray | - |
| Height | 1.4 mm | 1.4 mm | - |
| Length | 14 mm | 12 mm | - |
| Product | MCU | MCU | - |
| Program Memory Type | Flash | Flash | - |
| Width | 14 mm | 12 mm | - |
| Brand | NXP / Freescale | NXP / Freescale | - |
| Data RAM Type | RAM | RAM | - |
| Interface Type | CAN, I2C, SCI, SPI | CAN, I2C, SCI, SPI | - |
| Moisture Sensitive | Yes | Yes | - |
| Number of ADC Channels | 8 | 8 | - |
| Number of Timers/Counters | 1 Timer | 1 Timer | - |
| Processor Series | MCF51MM | MCF51MM | - |
| Product Type | 32-bit Microcontrollers - MCU | 32-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 450 | 480 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Tradename | ColdFire | ColdFire | - |
| Part # Aliases | 935321442557 | 935317176557 | - |
| Unit Weight | 0.024170 oz | 0.017320 oz | - |