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MC68HC908QT4CDW from M0TO,Motorola

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MC68HC908QT4CDW

Manufacturer: M0TO, FREESCALE

High-performance M68HC08 family of 8-bit microcontroller units (MCUs), (CISC) with a von neumann architecture, FLASH memory 4096 bytes, ADC

Partnumber Manufacturer Quantity Availability
MC68HC908QT4CDW M0TO, FREESCALE 1401 In Stock

Description and Introduction

High-performance M68HC08 family of 8-bit microcontroller units (MCUs), (CISC) with a von neumann architecture, FLASH memory 4096 bytes, ADC # **MC68HC908QT4CDW: A High-Performance Microcontroller for Embedded Applications**  

The **MC68HC908QT4CDW** is a versatile 8-bit microcontroller designed for embedded control applications that demand reliability, efficiency, and compact integration. Built on the robust **HC08 architecture**, this microcontroller combines performance with low power consumption, making it an excellent choice for consumer electronics, industrial automation, automotive systems, and more.  

## **Key Features and Benefits**  

### **1. High-Performance 8-Bit Core**  
At its core, the MC68HC908QT4CDW features an **8-bit HC08 CPU**, operating at a clock speed of up to **8 MHz**. This ensures efficient execution of control algorithms and real-time processing, making it suitable for applications requiring precise timing and responsiveness.  

### **2. Integrated Memory and Peripherals**  
The microcontroller includes **4KB of Flash memory**, providing ample space for program storage, along with **128 bytes of RAM** for data handling. Additionally, it supports **128 bytes of user EEPROM**, allowing for flexible configuration and parameter storage without external components.  

### **3. Low Power Consumption**  
Designed for energy-sensitive applications, the MC68HC908QT4CDW offers multiple power-saving modes, including **Wait and Stop modes**, which significantly reduce power consumption during idle periods. This feature is particularly beneficial for battery-operated devices.  

### **4. Versatile I/O and Communication Interfaces**  
The device includes **12 general-purpose I/O pins**, configurable for various functions, along with an **8-bit timer interface module (TIM)** for PWM generation, input capture, and output compare operations. It also supports **SPI (Serial Peripheral Interface)** for seamless communication with external peripherals.  

### **5. Robust and Compact Design**  
Housed in a **20-pin SOIC package**, the MC68HC908QT4CDW is optimized for space-constrained designs while maintaining high reliability. Its wide operating voltage range (**2.7V to 5.5V**) ensures compatibility with different power supply configurations.  

## **Applications**  
The MC68HC908QT4CDW is well-suited for a broad range of embedded applications, including:  
- **Home Appliances** (smart thermostats, lighting controls)  
- **Industrial Automation** (sensor interfaces, motor control)  
- **Automotive Electronics** (dashboard controls, small actuators)  
- **Consumer Electronics** (remote controls, portable gadgets)  

## **Conclusion**  
With its balanced combination of processing power, memory capacity, and low-power operation, the **MC68HC908QT4CDW** is a dependable solution for engineers seeking a cost-effective microcontroller for embedded systems. Its integration of essential peripherals and compact footprint makes it an ideal choice for applications requiring efficient control and connectivity.  

For developers looking to streamline their designs without compromising performance, this microcontroller offers a compelling blend of features that enhance both functionality and energy efficiency.

Application Scenarios & Design Considerations

High-performance M68HC08 family of 8-bit microcontroller units (MCUs), (CISC) with a von neumann architecture, FLASH memory 4096 bytes, ADC

Alternative Part Number

  • PIC12F675-I/P --: 8-bit flash microcontroller in a comparable small package with similar I/O and timer resources; widely available and often used as a functional substitute in simple control applications.
  • ATtiny85-20PU --: Low-pin-count 8-bit AVR microcontroller with flash memory and comparable peripherals; suitable drop-in for many basic embedded control designs.
  • STM8S003F3P6 --: 8-bit flash microcontroller with similar small-form-factor package and peripheral set; a practical alternative when the original HC908 part is unavailable.
  • MC68HC908QT4CPE --: Same HC908QT4 microcontroller family with identical core and memory, offered in a PDIP package for easy drop-in use where through-hole mounting is acceptable.
  • MC68HC908QY4CDW --: Closely related HC908QY4 device with the same CPU and flash size but additional I/O, in the same SOIC package, providing a functional superset alternative.
  • MC68HC908QT2CDW --: Same HC908QT series and package with half the flash memory; suitable when firmware fits in 2 KB and a lower-cost pin-compatible option is needed.

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