68HC908JK3 : Microcontroller

 

The MC68HC08JK3 is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units (MCUs). All MCUs in the family use the enhanced M68HC08 central processor unit (CPU08) and are available with a variety of modules, memory sizes and types, and package types.
Page Contents
Other Info
68HC908JK3 Features

  • High-Performance M68HC08 Architecture
  • Fully Upward-Compatible Object Code with M6805, M146805, and M68HC05 Families
  • Low-Power Design (Fully Static with Stop and Wait Modes)
  • 5V Nominal Operating Voltage
  • 3V Low-power Operating Voltage
  • Up to 8MHz Internal Bus Operation
  • RC-oscillator circuit or Crystal-oscillator options
  • 4096 Bytes of User FLASH or ROM
  • 960 Bytes of Monitor or Self-Check ROM
  • 128 Bytes of On-Chip Random Access Memory (RAM)
  • 10 Channel 8-bit ADC
  • 7 Keyboard Interrupts
  • 15 General Purpose I/O Ports for 20-pin package:
    • 4 LED Drivers
    • 2 x 25mA Open-drain I/O with pull-up
    • 2 ICAP/OCAP/PWM
    • 1 Keyboard Interrupt (with RC oscillator option selected)
  • System Protection Features
    • Optional Computer Operating Properly (COP) Reset
    • Illegal Opcode Detection with Optional Reset
    • Illegal Address Detection with Optional Reset
  • 16-Bit, 2-Channel Timer Interface Module (TIM)
  • Programmable Low Voltage Inhibit (LVI)
  • FLASH/ROM Security
  • In Circuit Programming (ICP)
  • Master Reset Pin with Internal Pull-up and Power-On Reset
  • IRQ1 with Programmable Pull-up and Schmitt-trigger Input
  • Available in 20-pin PDIP, 20-pin SOIC

Features of the CPU08 include the following:

  • Enhanced HC05 Programming Model
  • Extensive Loop Control Functions
  • 16 Addressing Modes (Eight More Than the HC05)
  • 16-Bit Index Register and Stack Pointer
  • Memory-to-Memory Data Transfers
  • Fast 8 ¥ 8 Multiply Instruction
  • Fast 16/8 Divide Instruction
  • Binary-Coded Decimal (BCD) Instructions
  • Optimization for Controller Applications
  • Third Party C Language Support

 

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68HC908JK3 Parametrics

RAM
Bytes
Flash
KBytes
Timer
I/O
A/D
PWM
Operating Voltage
Volts
Bus Frequency
(Max)
MHz
128
4
2-CH 16-Bit, IC, OC, or PWM
Up to 15
10 CH 8-Bit
See Timer
3.0, 5.0
8.0

 

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68HC908JK3 Documentation

Application Note
ID Name Format Size K Rev # Date Last Modified
AN1762 Automatic Contrast Control of LCD Displays Using the MC68HC708LN56 Microcontroller pdf 103 0 1/01/1998
AN1711 DMA08 Systems Compatibilities pdf 305 0 1/01/1997
AN1770 In-Circuit Programming of FLASH Memory in the MC68HC908GP20 pdf 403 1 1/01/1999
AN2154 Low-Cost, 3-Phase, AC Motor Control System with Power Factor Correction Based on MC68HC908MR32 pdf 170 0 7/23/2001
AN1798 CAN bit timing requirements pdf 73 4 6/01/2001
AN1828 FLASH Programming Via CAN pdf 74 0 1/01/1999
AN2105 Power-On, Clock Selection, and Noise Reduction Techniques for the Motorola MC68HC908GP32 pdf 220 0 1/01/2000
AN2093 Creating Efficient C Code for the MC68HC08 pdf 35 0 1/01/2000
AN1858 Sensorless Brushless dc Motor Using the MC68HC908MR32 Embedded Motion Control Development System pdf 194 0 6/22/2000
AN1857 A 3-Phase ac Induction Motor Control System Based on the MC68HC908MR32 pdf 278 0 6/22/2000
AN1853 Embedding Microcontrollers in Domestic Refrigeration Appliances pdf 216 0 6/22/2000
AN1844 Using a 68HC908MR32 in Place of a 68HC908MR24 pdf 214 0 6/22/2000
AN1843 Vacuum Cleaner Reference Platform pdf 326 0 9/13/2000
AN1837 Non-Volatile Memory Technology Overview pdf 116 0 3/27/2000
AN1831 Using MC68HC908 On-Chip FLASH Programming Routines ROM-Resident Routines in the MC68HC908GR8, MC68HC908KX8, MC68HC908JL3, MC68HC908JK3, and the MC68HC908JB8 pdf 294 1.0 9/11/2000
AN1705 Noise Reduction Techniques for Microcontroller-Based Systems pdf 67 0 1/01/1999
AN1057 Selecting the Right Microcontroller Unit pdf 241 0 1/01/2000
AN1827 Programming and Erasing FLASH Memory on the MC68HC908AS60 pdf 352 0 1/01/1999
AN1792 Using an MC68HC908MR24 in Place of an MC68HC708MP16 pdf 95 1 1/01/2000
AN1748 Building a Universal Serial Bus Keyboard Hub Using the Motorola MC68HC(9)08KH12 pdf 139 0 1/01/1998
AN1731 VPW J1850 Multiplexing and Motorola Byte Data Link Controller (BDLC) Module pdf 235 0 1/01/1998
AN1728 Making Low-Distortion Motor Waveforms with the MC68HC708MP16 pdf 149 1 1/01/1997
AN1712 Get Your Motor Running with the MC68HC708MP16 pdf 342 0 1/01/1997
AN1664 Low Cost 3-Phase ac Motor Control System Based on MC68HC908MR24 pdf 540 0 1/01/1996
AN1624 ITC137 68HC708MP16 Motion Control Development Board pdf 175 0 1/01/1997
AN1274 HC08 SCI Operation with Various Input Clocks pdf 57 0 1/01/1996
AN1221 Hamming Error Control Coding Techniques with the HC08 MCU pdf 73 0 1/01/1993
AN1219 M68HC08 Integer Math Routines pdf 170 1 1/01/1997
AN-HK-33 In-Circuit Programming of FLASH Memory in the MC68HC908JL3 pdf 69 1 3/27/2000
AN-HK-32 In-Circuit Programming of FLASH Memory in the MC68HC908GP32 pdf 79 2.0 8/10/2000
AN-HK-31 Using the MC68HC908GP32 in Place of MC68HC908GP20 pdf 942 0 1/01/1999
AN1783 Determining MCU Oscillator Start-Up Parameters pdf 48 1 1/01/1999
AN1771 Precision Sine-Wave Tone Synthesis Using 8-Bit MCUs pdf 250 0 1/01/1998
AN1744 Resetting Microcontrollers During Power Transitions pdf 80 0 1/01/1998
AN1752 Data Structures for 8-Bit Microcontrollers pdf 213 1 5/07/2001
AN1775 Expanding Digital Input with an A/D Converter pdf 86 1 1/01/1998
AN4006 Digital Captive Discharge Ignition System Using HC05/HC08 8-Bit Microcontrollers pdf 61 0 3/27/2000
AN2103 Local Interconnect Network (LIN) Demonstration pdf 953 0 12/01/2000
AN1743 Scrolling Message Software pdf 127 0 1/01/1998
AN1263 Designing for Electromagnetic Compatibility with Single-Chip Microcontrollers pdf 104 0 1/01/1995
AN1259 System Design and Layout Techniques for Noise Reduction in MCU-Based Systems pdf 78 0 1/01/1995
AN1222 Arithmetic Waveform Synthesis with the HC05/08 MCUs pdf 26 0 1/01/1993
AN1218 HC05 to HC08 Optimization pdf 347 2 1/01/1993
AN1050 Designing for Electromagnetic Compatibility (EMC) with HCMOS Microcontrollers pdf 82 0 1/01/2000
AN477 Simple A/D for MCUs without Built-In A/D Converters pdf 224 0 1/01/1993


Brochure
ID Name Format Size K Rev # Date Last Modified
BR1822 Embedded Flash MCU Overview pdf 174 - -


Data Sheets
ID Name Format Size K Rev # Date Last Modified
MC68HC908JL3 MC68H(R)C908JK1/MC68H(R)C908JK3/MC68H(R)C908JL3 Technical Data pdf 2116 3 1/10/1999


Engineering Bulletin
ID Name Format Size K Rev # Date Last Modified
EB368 In-Circuit Programming of FLASH Memory Using the Monitor Mode for the MC68HC908GR8 pdf 176 1 1/11/2001
EB370 In-Circuit Programming of FLASH Memory Using the Monitor Mode for the MC68HC908MR16/32 pdf 204 1 5/07/2001
EB369 In-Circuit Programming of FLASH Memory Using the Monitor Mode for the MC68HC908KX2/8 pdf 183 1 5/07/2001
EB367 In-Circuit Programming of FLASH Memory Using the Monitor Mode for the MC68HC908JL/JK pdf 316 0 10/13/2000
EB366 In-Circuit Programming of FLASH Memory Using the Monitor Mode for the MC68HC908GP32 pdf 294 0 10/13/2000
EB349 RAM Data Retention Considerations for Motorola Microcontrollers pdf 45 0 6/22/2000


Miscellaneous
ID Name Format Size K Rev # Date Last Modified
BR1785 68HC908JL/JK Family Brochure pdf 118 0 11/09/2000


Reference Manual
ID Name Format Size K Rev # Date Last Modified
CPU08RM CPU08RM Central Processor Unit Reference Manual pdf 2342 3 3/19/2001
CPU08RMAD CPU08 Reference Manual Addendum pdf 234 0 1/01/1995
TIM08RM TIM08 Timer Interface Module Reference Manual pdf 771 1.0 1/10/1996
TIM08RMAD TIM08 Timer Interface Module Reference Manual Addendum pdf 557 0 1/01/1995
DMA08RM Direct Memory Access Reference Manual pdf 463 1 2/23/2000
DRM002 USB08 Universal Serial Bus Evaluation Board Using the MC68HC908JB8 Designer Reference Manual pdf 1845 0 4/12/2001
DRM001 Passive Infrared (PIR) Intruder Detection Using the MC68HC908JK1/3, Incorporating Remote Control Adjustment Using the MC68HC908GP32 pdf 2504 0 2/20/2001
M68HC08RG HC08 Family Reference Guide pdf 3374 1 2/23/2000
M68HC08RGAD Addendum to HC08 Family Reference Guide, Revision 1 pdf 686 0 2/23/2000


Selector Guide
ID Name Format Size K Rev # Date Last Modified
SG188 Microcontroller Development Tool Configuration and Order Information Selector Guide pdf 154 2 1/01/2001
SG186 Microcontroller Selector Guide Quarter 3, 2001 pdf 490 8 6/29/2001

 

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68HC908JK3 Boards/Reference Designs

ID Name
ICS0508 8-bit ICS Development Tool Kit
M68MMDS0508 MMDS0508 Modular Development System
M68MMPFB0508 MMEVS Modular Evaluation System

 

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68HC908JK3 Orderable Parts

Orderable Part ID Package Info Status Remarks
KMC908JK3CDW Small Outline (Wide-Body SOIC) Active - Production Part -40 to +85 C
KMC908JK3CP Plastic Dual-in-Line (PDIP) Active - Production Part -40 to +85 C
KMCR908JK3CDW Small Outline (Wide-Body SOIC) Active - Production Part -40 to +85 C
KMCR908JK3CP Plastic Dual-in-Line (PDIP) Active - Production Part -40 to +85 C
MC68HC908JK3CDW Small Outline (Wide-Body SOIC) Active - Production Part -40 to +85 C
MC68HC908JK3CP Plastic Dual-in-Line (PDIP) Active - Production Part -40 to +85 C
MC68HC908JK3MDW Small Outline (Wide-Body SOIC) Active - Production Part -40 to +125 C
MC68HC908JK3MP Plastic Dual-in-Line (PDIP) Active - Production Part -40 to +125 C
MC68HRC908JK3CDW Small Outline (Wide-Body SOIC) Active - Production Part -40 to +85 C
MC68HRC908JK3CP Plastic Dual-in-Line (PDIP) Active - Production Part -40 to +85 C
MC68HRC908JK3MDW Small Outline (Wide-Body SOIC) Active - Production Part -40 to +125 C
MC68HRC908JK3MP Plastic Dual-in-Line (PDIP) Active - Production Part -40 to +125 C

 

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