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MC68HC908QY2CDT from FREESCAL

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MC68HC908QY2CDT

Manufacturer: FREESCAL, MOT, MOTOROLA

High-performance M68HC08 family of 8-bit microcontroller units (MCUs), (CISC) with a von neumann architecture, FLASH memory 1536 bytes, ADC

Partnumber Manufacturer Quantity Availability
MC68HC908QY2CDT FREESCAL, MOT, MOTOROLA 2836 In Stock

Description and Introduction

High-performance M68HC08 family of 8-bit microcontroller units (MCUs), (CISC) with a von neumann architecture, FLASH memory 1536 bytes, ADC # **MC68HC908QY2CDT: A Reliable 8-bit Microcontroller for Embedded Applications**  

The **MC68HC908QY2CDT** is a high-performance 8-bit microcontroller from the HC08 family, designed to deliver efficient processing power for a wide range of embedded applications. With its robust architecture, low power consumption, and versatile peripheral integration, this microcontroller is an excellent choice for developers seeking a cost-effective yet powerful solution for industrial, automotive, and consumer electronics.  

## **Key Features and Benefits**  

### **1. Efficient 8-bit Processing Core**  
At the heart of the MC68HC908QY2CDT lies an **HC08 CPU core**, capable of running at up to **8 MHz**. This provides sufficient processing power for real-time control tasks, sensor interfacing, and data handling in embedded systems. The architecture is optimized for low-latency operations, ensuring responsive performance in time-sensitive applications.  

### **2. Integrated Memory for Flexible Development**  
The microcontroller includes **2 KB of Flash memory**, allowing for easy firmware updates and reprogramming during development. Additionally, it features **128 bytes of RAM**, providing efficient temporary data storage for operational tasks. The Flash memory supports in-circuit programming, simplifying field upgrades and maintenance.  

### **3. Versatile Peripheral Integration**  
The MC68HC908QY2CDT is equipped with a variety of built-in peripherals, reducing the need for external components and lowering system costs. Key integrated features include:  
- **8-bit Timer Interface Module (TIM)** for precise timing and PWM generation.  
- **Serial Peripheral Interface (SPI)** for high-speed communication with external devices.  
- **Analog-to-Digital Converter (ADC)** with **4 channels**, enabling direct sensor interfacing.  
- **In-Circuit Debugging (ICD)** support for streamlined development and troubleshooting.  

### **4. Low Power Consumption**  
Designed for energy-efficient operation, the MC68HC908QY2CDT supports multiple power-saving modes, including **Wait and Stop modes**. These features make it ideal for battery-powered applications where extended operational life is critical.  

### **5. Robust and Compact Packaging**  
The microcontroller is available in a **16-pin TSSOP package**, offering a compact footprint for space-constrained designs. Its industrial-grade temperature range ensures reliable performance in harsh environments.  

## **Applications**  
Thanks to its balanced performance and peripheral integration, the MC68HC908QY2CDT is well-suited for a variety of applications, including:  
- **Home and Industrial Automation** – Control systems, motor drivers, and sensor interfaces.  
- **Automotive Electronics** – Dashboard controls, lighting systems, and simple ECU functions.  
- **Consumer Electronics** – Remote controls, small appliances, and wearable devices.  
- **Medical Devices** – Portable diagnostic equipment and monitoring systems.  

## **Conclusion**  
The **MC68HC908QY2CDT** is a dependable 8-bit microcontroller that combines processing efficiency, integrated peripherals, and low power consumption in a compact form factor. Whether used in industrial automation, automotive systems, or consumer electronics, it provides a reliable foundation for embedded designs.  

For engineers and developers seeking a cost-effective yet capable microcontroller, the MC68HC908QY2CDT offers a compelling balance of performance and functionality. Its ease of integration and development support make it a practical choice for a wide range of embedded applications.

Application Scenarios & Design Considerations

High-performance M68HC08 family of 8-bit microcontroller units (MCUs), (CISC) with a von neumann architecture, FLASH memory 1536 bytes, ADC

Alternative Part Number

  • ATMEGA48PA-AU --: 8-bit AVR microcontroller in TQFP-32 with comparable flash, RAM, and I/O; widely available and pin-function compatible for many 908QY2 designs.
  • PIC16F886-I/PT --: 8-bit PIC MCU in TQFP-44 with similar peripheral set (ADC, timers, UART) and broad availability as a functional replacement.
  • STM8S003F3P6 --: Low-cost 8-bit STM8 MCU in TSSOP-20 offering comparable core speed, flash, and peripherals for cost-sensitive replacements.
  • MC68HC908QY4CDT --: Same HC08 QY family in the same 16-pin TSSOP package with more flash memory, so it is a drop-in upgrade and is widely available from the original manufacturer's successor NXP.
  • MC68HC908QT4CDT --: Same HC08 core and TSSOP-16 footprint with a different flash size, offering a close functional substitute when the QY2 variant is unavailable.
  • MC68HC908QY1CDT --: Same QY series and package with smaller memory, suitable as a lower-cost fallback if the application does not require the full QY2 memory.
  • MC9S08QG8CDTE --: Pin-compatible S08 QG family device in a 16-pin TSSOP with similar peripherals, suitable as a next-generation migration path from the HC08 QY series.

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