MC68HC908LB8VPE

Product Overview

• Category: Microcontroller
• Use: Embedded systems, control applications
• Characteristics:
  • Low power consumption
  • High performance
  • Small package size
  • Integrated peripherals
• Package: VPE (Plastic Quad Flat Package)
• Essence: A microcontroller designed for embedded systems with a focus on low power consumption and high performance.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Architecture: 8-bit
• CPU Speed: Up to 8 MHz
• Program Memory Size: 8 KB Flash
• Data Memory Size: 512 bytes RAM
• Operating Voltage Range: 2.7V to 5.5V
• Number of I/O Pins: 28
• Communication Interfaces:
  • UART
  • SPI
  • I2C
• Analog-to-Digital Converter (ADC): 10-bit, 8 channels
• Timers/Counters: 2 x 16-bit, 1 x 8-bit
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MC68HC908LB8VPE microcontroller has a total of 28 pins. The pin configuration is as follows:

```

---

| | --|1 28|-- VDD --|2 27|-- PTA0/IRQ --|3 26|-- PTA1/RST --|4 25|-- PTA2/XCLKS --|5 24|-- PTA3/XIN --|6 23|-- PTA4/XOUT --|7 22|-- PTA5/IRQ --|8 21|-- PTA6/IRQ --|9 20|-- PTA7/IRQ --|10 19|-- PTB0/IRQ --|11 18|-- PTB1/IRQ --|12 17|-- PTB2/IRQ --|13 16|-- PTB3/IRQ --|14 15|-- VSS |_______| ```

Functional Features

• Low power consumption: The MC68HC908LB8VPE is designed to operate efficiently in low-power applications, making it suitable for battery-powered devices.
• High performance: With a CPU speed of up to 8 MHz, this microcontroller offers fast processing capabilities for control applications.
• Integrated peripherals: The device includes UART, SPI, and I2C interfaces, allowing seamless communication with other devices.
• Analog-to-Digital Converter (ADC): The built-in 10-bit ADC enables accurate conversion of analog signals into digital data.
• Timers/Counters: The microcontroller features two 16-bit timers and one 8-bit timer, providing precise timing and counting functionality.

Advantages and Disadvantages

Advantages: - Low power consumption extends battery life in portable applications. - Integrated peripherals simplify system design and reduce external component count. - Small package size allows for space-efficient designs. - High-performance CPU enables fast execution of control algorithms.

Disadvantages: - Limited program memory size may restrict the complexity of applications. - Limited number of I/O pins may limit the connectivity options in larger systems.

Working Principles

The MC68HC908LB8VPE operates based on an 8-bit architecture. It executes instructions stored in its program memory, which is 8 KB Flash in size. The CPU fetches instructions from memory, performs calculations, and controls the operation of peripherals and I/O pins.

The microcontroller can communicate with external devices through its UART, SPI, and I2C interfaces. It also includes an ADC for converting analog signals into digital data. Timers/counters provide precise timing and counting capabilities.

Application Field Plans

The MC68HC908LB8VPE is suitable for various embedded system applications, including but not limited to: - Home automation systems - Industrial control systems - Automotive electronics - Medical devices - Consumer electronics

Its low power consumption, integrated peripherals, and small package size make it ideal for battery-powered and space-constrained applications.

Alternative Models

• MC68HC908LB8CP: Same functionality but in a different package (Plastic Dual In-Line Package).
• MC68HC908LB8CDW: Same functionality but in a different package (SOIC - Small Outline Integrated Circuit).

These alternative models offer the same features and specifications as the MC68HC908LB8VPE but come in different package options to suit specific design requirements.

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