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| PartNumber | PCF51AC256ACPUE | PCF51AC256ACLKE | PCF51AC256ACFUE |
| Description | 32-bit Microcontrollers - MCU 32 Bit 256K FLASH 32K RAM CAN EN | 32-bit Microcontrollers - MCU 32 Bit 256K FLASH 32K RAM CAN EN | IC MCU 32BIT 256KB FLASH 64QFP |
| 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-64 | LQFP-80 | - |
| Series | MCF51AC | MCF51AC256 | - |
| Core | ColdFire V1 | ColdFire V1 | - |
| Data Bus Width | 32 bit | 32 bit | - |
| Maximum Clock Frequency | 50.33 MHz | 50.33 MHz | - |
| Program Memory Size | 256 kB | 256 kB | - |
| Data RAM Size | 32 kB | 32 kB | - |
| ADC Resolution | 12 bit | 12 bit | - |
| Number of I/Os | 69 I/O | 69 I/O | - |
| Operating Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tray | Tray | - |
| Height | 1.4 mm | 1.5 mm | - |
| Length | 10 mm | 14 mm | - |
| Program Memory Type | Flash | Flash | - |
| Width | 10 mm | 14 mm | - |
| Brand | NXP / Freescale | NXP / Freescale | - |
| Interface Type | 2xSCI, 2xSPI | 2xSCI, 2xSPI | - |
| Number of ADC Channels | 24 | 24 | - |
| Number of Timers/Counters | 8 Timer | 12 Timer | - |
| Product Type | 32-bit Microcontrollers - MCU | 32-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 160 | 90 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 2.7 V | 2.7 V | - |
| Unit Weight | 0.012224 oz | 0.022489 oz | - |
| Moisture Sensitive | - | Yes | - |
| Tradename | - | ColdFire | - |