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68HC05K3: Microcontroller

 

The MC68HC05K3 is a member of Motorola's low-cost, high-performance M68HC05 Family of 8-bit microcontroller units (MCUs).This device has 64 bytes of user RAM, 128 bits of personality electronically erasable programmable ROM (PEEPROM), and 928 bytes of user ROM. This device is available in the 16-pin plastic dual in-line package (PDIP), 16-pin small outline integrated circuit (SOIC) package, and 20-pin super small outline (SSOP) package.
Page Contents
68HC05K3 Features

  • M68HC05 CPU
  • 16-pin PDIP, 16-pin SOIC package, or 20-pin SSOP
  • 928 bytes of user ROM, including eight bytes of user vectors
  • 64 bytes of user RAM
  • Low-power operation at 1.8 V &emdash; V DD minimum (EEPROM read only)
  • 128 bits of personality EEPROM (not memory mapped) programmed using CPU software or with on-chip serial programming ROM
  • On-chip charge pump for in-circuit programming of the personality EEPROM at 2.7 to 5.5 Vdc
  • 8-bit free-running timer
  • 4-stage selectable real-time interrupt generator
  • 10 bidirectional input/output (I/O) lines including:
    • 8-mA sink capability on four I/O pins (PA7&endash;PA4)
    • Mask option for software programmable pulldowns on all I/O pins
    • Mask option for port interrupts on four I/O pins (PA3&endash;PA0) (keyboard scan feature)
  • IRQ interrupt hardware mask, flag bit, and request bit
  • Mask option for sensitivity on IRQ interrupt (edge- and level-sensitive or edge-sensitive only)
  • Mask option for reduced startup delay time with RC oscillatoroptions
  • Mask option for computer operating properly (COP) watchdogsystem
  • Power-saving stop mode and wait mode instructions
  • Mask option to convert STOP instruction to halt mode
  • Illegal address reset
  • Internal steering diode and pullup resistor on RESET pin to V DD
  • Internal RESET pin pulldown from COP watchdog and ILADR

 

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68HC05K3 Parametrics

ROM
(KBytes)
RAM
(Bytes)
EEPROM
(Bytes)
Timer
I/O
Operating Frequency
(MHz)
Operating Voltage
(V)
Bus Frequency
(Max)
(MHz)
0.9
64
16 PEEP
MFT, RTI
10
2.1
3.3, 5.0
2.1

 

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68HC05K3 Documentation
Document ID Document Title
HC05K3GRS/D 68HC05K3 General Release Specification
68HC05APPNOTES Table of 68HC05 Applications Notes
M68HC05AG/AD M68HC05 Applications Guide
M68HC05TB/D HC05 Family - Understanding Small Microcontrollers

 

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68HC05K3 Design Tools and Data
ID Name
ICS0508 ICS0508 Development Tool
M68MMPFB0508 MMEVS Modular Evaluation System
M68MMDS0508 MMDS0508 Emulator System

 

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68HC05K3 Orderable Parts
Orderable Part ID Package Info Status Remarks
MC68HC05K3P Plastic Dual In-Line Package (DIP) 0 to +70 C
MC68HC05K3CP Plastic Dual In-Line Package (DIP) -40 to +85 C
MC68HC05K3DW Small Outline Integrated Circuit Package (SOIC) 0 to +70 C
MC68HC05K3CDW Small Outline Integrated Circuit Package (SOIC) -40 to +85 C
MC68HC05K3CSD Super Small Outline Package (SSOP) -40 to +85 C

 

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