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68HC05X32: Microcontroller

 

The MC68HC05X32 microcomputer (MCU) is a member of Motorola's MC68HC05 family of low-cost single chip microcomputers. This 8-bit MCU contains an on-board controller area network module (MCAN), complete with interface circuitry, comprising output drivers, input comparators and a V DD /2 generator. In addition, the device contains an on-chip oscillator, CPU, RAM, ROM, EEPROM, A/D converter, pulse length modulated outputs, I/O, serial communications interface, programmable timer system and watchdog. The fully static design allows operation at frequencies down to dc, reducing power consumption to a few micro-amps.
Page Contents
68HC05X32 Features

  • Fully static design featuring the industry standard M68HC05 family CPU core
  • On chip crystal oscillator with divide-by -2, -4, -8 or -10, or a software selectable divide-by -32, -64, -128 or -160 option (SLOW mode)
  • 31232 bytes of user ROM plus 16 bytes of user vectors
  • 528 bytes of RAM
  • 654 bytes of bootstrap ROM
  • 256 bytes of byte erasable EEPROM with internal charge pump and security bit
  • Write/erase protect bit for 224 of the 256 bytes EEPROM
  • Bootstrap firmware
  • Power saving STOP, WAIT and SLOW modes
  • Three 8-bit parallel I/O ports and one 8-bit input-only port; wired-OR interrupt capability on all port B pins
  • Motorola controller area network (MCAN) with line interface circuitry
  • Software option available to output the internal E-clock to port pin PC2
  • 16-bit timer with 2 input captures and 2 output compares
  • Computer operating properly (COP) watchdog timer
  • Serial communications interface system (SCI) with independent transmitter/receiver baud rate selection; receiver wake-up function for use in multi-receiver systems
  • 8 channel A/D converter
  • 2 pulse length modulation systems which can be used as D/A converters
  • One interrupt request input plus 4 on-board hardware interrupt sources
  • Available in 64-pin QFP package

 

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68HC05X32 Parametrics

ROM
(KBytes)
RAM
(Bytes)
EEPROM
(Bytes)
Timer
I/O
Serial
A/D
PWM
Operating Voltage
(V)
Bus Frequency
(Max)
(MHz)
32
528
256
16-Bit, 2I/C, 2 O/C
32
SCI CAN
8-CH, 8-Bit
2-CH 8-Bit
5.0
2.1

 

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68HC05X32 Documentation
Document ID Document Title
MC68HC05X16/D 68HC05X16, 68HC05X32, 68HC705X32 Technical Data Book
68HC05APPNOTES Table of 68HC05 Applications Notes
M68HC05AG/AD M68HC05 Applications Guide
M68HC05TB/D HC05 Family - Understanding Small Microcontrollers

 

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68HC05X32 Design Tools and Data
ID Name
ICS0508 ICS0508 Development Tool
M68MMPFB0508 MMEVS Modular Evaluation System
M68MMDS0508 MMDS0508 Emulator System

 

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68HC05X32 Orderable Parts
Orderable Part ID Package Info Status Remarks
MC68HC05X32FU 64-Pin Quad Flat Pack (QFP) 0 to +70 C
MC68HC05X32CFU 64-Pin Quad Flat Pack (QFP) -40 to +85 C
MC68HC05X32VFU 64-Pin Quad Flat Pack (QFP) -40 to +105 C
MC68HC05X32MFU 64-Pin Quad Flat Pack (QFP) -40 to +125 C

 

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