HC05X

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HC05X Microcontroller Technical Summary

Overview

The HC05X is a member of Motorola's MC68HC05 family of 8-bit microcontrollers. This fully static design features low-power operation with capabilities down to DC frequencies, making it suitable for power-sensitive applications. The device integrates multiple peripherals including memory, I/O ports, communication interfaces, and analog converters into a single chip solution.

Key highlights of the HC05X include:

• 8-bit MC68HC05 CPU core
• On-chip oscillator
• Integrated Motorola CAN Module (MCAN)
• Multiple memory options including RAM, ROM, and EEPROM
• Analog-to-Digital and Digital-to-Analog conversion
• Programmable timer system
• Serial communication interfaces
• Low power modes for energy efficient operation

Features

Core Features

• 8-bit HC05 CPU architecture
• Fully static design with operation down to DC
• Multiple low power modes (STOP, WAIT, SLOW)
• 16-bit stack pointer
• Comprehensive instruction set with 10 addressing modes

Memory Features

• On-chip RAM
• Mask-programmable ROM
• EEPROM with programmable erase/program operations
• Bootstrap ROM for system initialization
• Memory-mapped I/O registers

Peripheral Features

• Motorola CAN Module (MCAN) with:
  • Transmit and receive buffers
  • Programmable baud rate
  • Acceptance filtering
  • Single-wire operation capability
• Programmable 16-bit timer with:
  • Input capture
  • Output compare
  • Pulse length modulation
• Serial Communications Interface (SCI) with:
  • Full-duplex operation
  • Programmable baud rate
  • Wake-up functionality
• Analog-to-Digital Converter (ADC) with:
  • 8-channel multiplexed input
  • 8-bit resolution
  • Programmable conversion time
• Multiple I/O ports with:
  • Programmable direction control
  • Alternate function mapping

Applications

The HC05X is suitable for a wide range of embedded control applications including:

• Automotive control systems
• Industrial automation
• Consumer electronics
• Sensor interfaces
• Networked control systems
• Motor control applications
• Battery-powered devices

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage (VDD): -0.3V to +7.0V
• Input Voltage (any pin): -0.3V to VDD + 0.3V
• Operating Temperature Range: -40°C to +85°C
• Storage Temperature Range: -55°C to +150°C

DC Characteristics (VDD = 5V ±10%, TA = -40°C to +85°C)

• Input High Voltage: 0.7VDD min
• Input Low Voltage: 0.2VDD max
• Output High Voltage: 0.8VDD min @ IOH = -0.5mA
• Output Low Voltage: 0.2VDD max @ IOL = 1.6mA
• Power Supply Current (Run mode, 4MHz): 10mA typical
• Power Supply Current (WAIT mode): 2mA typical
• Power Supply Current (STOP mode): 10μA max

Analog Characteristics

• ADC Resolution: 8 bits
• ADC Conversion Time: 32μs @ 4MHz
• ADC Reference Voltage Range: VRL to VRH
• ADC Integral Nonlinearity: ±1 LSB
• ADC Differential Nonlinearity: ±0.5 LSB

Package Information

The HC05X is available in a 64-pin Quad Flat Pack (QFP) package with the following mechanical specifications:

• Package Type: Plastic Quad Flat Pack
• Pin Count: 64
• Body Size: 14mm x 14mm
• Lead Pitch: 0.8mm
• Lead Width: 0.3mm
• Lead Length: 1.0mm
• Package Height: 2.45mm max

Ordering Information

The HC05X is available in several variants with different memory configurations and temperature ranges. The following table shows the standard ordering options:

• HC05X16: 16KB ROM, Commercial temperature range
• HC05X16A: 16KB ROM, Industrial temperature range
• HC705X32: 32KB EPROM, Commercial temperature range
• HC705X32A: 32KB EPROM, Industrial temperature range

Appendices

The complete technical documentation includes several appendices with additional information:

• Appendix A: MC68HC05X32 variant specifications
• Appendix B: MC68HC705X32 EPROM variant details
• Appendix C: High speed operation characteristics
• Detailed register maps and bit definitions
• Timing diagrams for all interfaces
• Application notes for typical use cases

``` This HTML document provides a comprehensive technical summary of the HC05X microcontroller, organized into logical sections with appropriate headings and lists for easy reading. The content covers all major aspects of the component including its features, specifications, and application information. The document is structured to be both technically thorough and accessible to engineers evaluating the component for their designs.