Overview
The MCF51AC256ACPUER is a 32-bit microcontroller from NXP USA Inc., part of the ColdFire® family. It is based on the V1 ColdFire core and is designed to offer a highly integrated and diverse feature set, making it an ideal upgrade for designs based on 8-bit microcontrollers such as the MC9S08AC128 series. This microcontroller operates at processor core speeds up to 50.33 MHz and provides high performance with 0.94 Dhrystone 2.1 DMIPS per MHz when running from internal RAM.
Key Specifications
| Feature | Specification |
|---|---|
| Processor Core | V1 ColdFire core with background debug module (BDM) |
| Processor Speed | Up to 50.33 MHz |
| Flash Memory | Up to 256 KB |
| SRAM | Up to 32 KB |
| Analog Comparators | Up to two (ACMP1 and ACMP2) |
| Analog-to-Digital Converter (ADC) | Up to 24 channels (12-bit) |
| Controller Area Network (CAN) | Yes |
| Cyclic Redundancy Check (CRC) | Yes |
| Inter-Integrated Circuit (IIC) | Yes |
| Keyboard Interrupt (KBI) | Yes |
| Multipurpose Clock Generator (MCG) | Yes |
| Rapid General-Purpose Input/Output (RGPIO) | Yes |
| Serial Communications Interfaces (SCI) | Two |
| Serial Peripheral Interfaces (SPI) | Up to two |
| Flexible Timer Modules (FTM) | Two |
| Timer Pulse-Width Modulator (TPM) | Yes |
| Package Type | 64-LQFP (10x10 mm) |
Key Features
- Highly integrated with various peripherals such as CAN, CRC, IIC, KBI, MCG, RGPIO, SCI, SPI, FTM, and TPM.
- Power-saving modes including three low-power stop plus wait modes and peripheral clock enable register to reduce power consumption.
- Security circuitry to prevent unauthorized access to SRAM and flash contents.
- Support for instruction set revision C (ISA_C) with high performance of 0.94 Dhrystone 2.1 DMIPS per MHz.
- On-chip memory includes up to 256 KB flash and up to 32 KB SRAM.
Applications
The MCF51AC256ACPUER is suitable for a wide range of applications, including industrial control systems, automotive systems, medical devices, and consumer electronics. Its integrated CAN module makes it particularly useful in automotive and industrial networking applications. Additionally, its power-saving features and high performance make it a good choice for battery-powered devices and other applications requiring low power consumption.
Q & A
- What is the processor core of the MCF51AC256ACPUER?
The MCF51AC256ACPUER is based on the V1 ColdFire core. - What is the maximum processor speed of the MCF51AC256ACPUER?
The maximum processor speed is up to 50.33 MHz. - How much flash memory does the MCF51AC256ACPUER have?
The MCF51AC256ACPUER has up to 256 KB of flash memory. - What is the SRAM capacity of the MCF51AC256ACPUER?
The SRAM capacity is up to 32 KB. - Does the MCF51AC256ACPUER support CAN?
Yes, it supports Controller Area Network (CAN). - What types of timers are available on the MCF51AC256ACPUER?
The microcontroller includes two flexible timer modules (FTM) and a timer pulse-width modulator (TPM). - What power-saving features does the MCF51AC256ACPUER have?
The MCF51AC256ACPUER has three low-power stop plus wait modes and a peripheral clock enable register to reduce power consumption. - What is the package type of the MCF51AC256ACPUER?
The package type is 64-LQFP (10x10 mm). - Does the MCF51AC256ACPUER have security features?
Yes, it includes security circuitry to prevent unauthorized access to SRAM and flash contents. - What are some typical applications of the MCF51AC256ACPUER?
Typical applications include industrial control systems, automotive systems, medical devices, and consumer electronics.
