68HC705P6A|8-bit Microcontroller (MCU)

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The NXP^® MC68HC705P6A is an EPROM version of the MC68HC05P6 microcontroller. It is a low-cost combination of an M68HC05 Family microprocessor with a 4-channel, 8-bit analog-to-digital (A/D) converter, a 16-bit timer with output compare and input capture, a serial communications port (SIOP), and a computer operating properly (COP) watchdog timer. The HC05 CPU core contains 176 bytes of RAM, 4672 bytes of user EPROM, 239 bytes of bootloader ROM, and 21 input/output (I/O) pins (20 bidirectional, 1 input-only). This device is available in a 28-pin SOIC, PDIP, or windowed DIP package.

Data Sheet

Reference Manual

Product Details

Block Diagram

Washer Machines Microcontrollers for M68HC05 Family Block Diagram

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Features

28-Pin SOIC, PDIP, or Windowed DIP Package
4672 Bytes of User EPROM (Including 48 Bytes of Page Zero EPROM and 16 Bytes of User Vectors)
239 Bytes of Bootloader ROM
176 Bytes of On-Chip RAM
4-Channel 8-Bit A/D Converter
SIOP Serial Communications Port
16-Bit Timer with Output Compare and Input Capture
20 Bidirectional I/O Lines and 1 Input-Only line
PC0 and PC1 High-Current Outputs

Design Resources

Documentation

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1-5 of 53 documents

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^{Data Sheet}
MC68HC705P6A Advance Information - Data Sheet

PDFRev 2.1Sep 20, 2005544.5 KBMC68HC705P6AEnglish
^{Reference Manual}
M68HC05 Applications Guide

PDFRev 4Jan 28, 20035.2 MBM68HC05AGEnglish
^{Reference Manual}
MC68HC05C4, C8, C9, MC68HC705C8, MC68HC805C4, MC68HCL05C4, C8, MC68HSC05C4, C8 Programming Reference

PDFRev 1Feb 23, 20003.8 MBMC68HC05CXRGEnglish
^{Reference Manual}
HC05 Family - Understanding Small Microcontrollers

PDFRev 2Jan 1, 19983.9 MBM68HC05TBEnglish
^{Application Note}
AN1516 Liquid Level Control Using a Pressure Sensor

PDFRev 4May 16, 2005285.7 KBAN1516English
^{Application Note}
Software SCI Routines with the 16-Bit Timer Module

PDFRev 1Nov 22, 2004124.3 KBAN1818English
^{Application Note}
Migrating from the MC68HC705K1 to the MC68HC705KJ1

PDFRev 0Nov 10, 2003633.0 KBAN1746English
^{Application Note}
MISC Bus Follower Switch Node

PDFRev 0Jul 11, 2002554.5 KBAN1688English
^{Application Note}
Software SCI Implementation to the MISC Communication Protocol

PDFRev 0Jul 10, 2002761.4 KBAN1667EnglishAssociated File: AN1667SW
^{Application Note}
Pulse Generation and Detection with Microcontroller Units

PDFRev 1May 31, 2002697.2 KBAN1067English
^{Application Note}
Using the Serial Peripheral Interface to Communicate Between Multiple Microcomputers

PDFRev 	1Jan 28, 2002708.2 KBAN991English
^{Application Note}
Digital Direct Current Ignition System Using HC08 Microcontrollers

PDFRev 0Nov 20, 20011.2 MBAN2159EnglishAssociated File: AN2159SW
^{Application Note}
Data Structures for 8-Bit Microcontrollers

PDFRev 1May 7, 2001692.9 KBAN1752English
^{Application Note}
Local Interconnect Network (LIN) Demonstration

PDFRev 0Dec 1, 20001.7 MBAN2103English
^{Application Note}
Digital Captive Discharge Ignition System Using HC05/HC08 8-Bit Microcontrollers

PDFRev 0Mar 27, 2000351.8 KBAN4006English
^{Application Note}
Designing for Electromagnetic Compatibility (EMC) with HCMOS Microcontrollers

PDFRev 0Jan 1, 2000456.1 KBAN1050English
^{Application Note}
Noise Reduction Techniques for Microcontroller-Based Systems

PDFRev 0Jan 1, 1999439.7 KBAN1705English
^{Application Note}
Software I2C Communications

PDFRev 0Jan 1, 1999488.6 KBAN1820EnglishAssociated File: AN1820SW
^{Application Note}
Expanding Digital Input with an A/D Converter

PDFRev 1Jan 1, 1998459.0 KBAN1775English
^{Application Note}
Add a Unique Silicon Serial Number to the HC05

PDFRev 0Jan 1, 1998669.6 KBAN1757English
^{Application Note}
Implementing Caller ID Functionality in MC68HC(7)05 Applications

PDFRev 0Jan 1, 1998715.1 KBAN1733English
^{Application Note}
Precision Sine-Wave Tone Synthesis Using 8-Bit MCUs

PDFRev 0Jan 1, 1998857.7 KBAN1771English
^{Application Note}
Add Addressable Switches to the HC05

PDFRev 0Jan 1, 1998433.5 KBAN1758English
^{Application Note}
Resetting Microcontrollers During Power Transitions

PDFRev 0Jan 1, 1998482.4 KBAN1744English
^{Application Note}
Pulse Width Modulation Using the 16-Bit Timer

PDFRev 0Jan 1, 1998398.4 KBAN1734EnglishAssociated File: AN1734SW
^{Application Note}
Interfacing MC68HC05 Microcontrollers to the IBM AT Keyboard Interface

PDFRev 0Oct 30, 1997643.1 KBAN1723English
^{Application Note}
Let the MC68HC705 Program Itself

PDFRev 0Jul 1, 1996818.8 KBAN499English
^{Application Note}
Adding a Voice User Interface to M68HC05 Applications

PDFRev 0Jan 1, 1996990.0 KBAN1292EnglishAssociated File: AN1292SW
^{Application Note}
Designing for Electromagnetic Compatibility with Single-Chip Microcontrollers

PDFRev 0Jan 1, 1995283.9 KBAN1263English
^{Application Note}
Simple Real-Time Kernels for M68HC05 Microcontrollers

PDFRev 	0Jan 1, 19952.8 MBAN1262EnglishAssociated File: AN1262SW
^{Application Note}
AN1259: System Design and Layout Techniques for Noise Reduction in MCU-Based Systems – Application Note

PDFRev 0Jan 1, 1995347.8 KBAN1259English
^{Application Note}
MC68HC05SR3 and MC68HC705SR3 Design Notes

PDFRev 0Jan 1, 19943.7 MBAN-HK-22English
^{Application Note}
MC6805R3 and MC68HC05SR3 Technical Comparison

PDFRev 0Jan 1, 1994875.8 KBAN-HK-23English
^{Application Note}
Simple A/D for MCUs without Built-In A/D Converters

PDFRev 0Jan 1, 1993926.5 KBAN477English
^{Application Note}
Software Driver Routines for the MC68HC05 CAN Module

PDFRev 0Jan 1, 19933.4 MBAN464English
^{Application Note}
Arithmetic Waveform Synthesis with the HC05/08 MCUs

PDFRev 0Jan 1, 1993571.8 KBAN1222EnglishAssociated File: AN1222SW
^{Application Note}
68HC05K0 Infra-red Remote Control

PDFRev 0Jan 1, 1992794.0 KBAN463English
^{Application Note}
Driving LCDs with M6805 Microprocessors

PDFRev 0Jan 1, 199175.1 KBAN442English
^{Application Note}
M6805 16-Bit Support Macros

PDFRev 0Jan 1, 19901.4 MBAN1055EnglishAssociated File: AN1055SW
^{Application Note}
MC68HC05B4 Radio Synthesizer

PDFRev 0Jan 1, 19882.3 MBANE416English
^{Application Note Software}
Software for AN1667, zip format

ZIPRev 1.0Jul 31, 200295.9 KBAN1667SWEnglish
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^{Application Note Software}
AN2159SW

ZIPRev 1Mar 8, 2002186.6 KBAN2159SWEnglish
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^{Application Note Software}
Software files for AN1820 zipped

ZIPRev 0Jan 1, 19982.2 KBAN1820SWEnglish
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^{Application Note Software}
Software files for AN1734 zipped

ZIPRev 0Jan 1, 19972.7 KBAN1734SWEnglish
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^{Application Note Software}
Software files for AN1292 zipped

ZIPRev 0Jan 1, 1996221.1 KBAN1292SWEnglish
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^{Application Note Software}
Software Files for AN1222 zipped

ZIPRev 0Jan 1, 199521.5 KBAN1222SWEnglish
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^{Application Note Software}
Software files for AN1262

ZIPRev 0Jan 1, 199511.7 KBAN1262SWEnglish
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^{Engineering Bulletin}
Use of OSC2/XTAL as a Clock Output on Freescale Semiconductor Microcontrollers

PDFRev 0Jun 19, 2002239.6 KBEB396English
^{Engineering Bulletin}
RAM Data Retention Considerations for Freescale Semiconductor Microcontrollers

PDFRev 1Jun 22, 2000250.5 KBEB349English
^{Engineering Bulletin}
The MCAN Module

PDFRev 0Feb 23, 2000279.1 KBEB421English
^{Engineering Bulletin}
Resetting MCUs

PDFRev 0Jan 1, 2000293.5 KBEB413English
^{Engineering Bulletin}
Frequently Asked Questions and Answers for the M68HC05 Family MCAN Module

PDFRev 0Jan 1, 1997464.2 KBEB181English
^{Engineering Bulletin}
Differences between the MC68HC705B16 and the MC68HC705B16N

PDFRev 0Jan 1, 1996219.7 KBEB180English

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Hardware

4 hardware offerings

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^{Emulators, Probes, and Programmers}
Universal Multilink Development Interface

UMultilink
^{Emulators, Probes, and Programmers}
PEmicro Cyclone FX programmer

CYCLONE-FX
^{Emulators, Probes, and Programmers}
Universal Multilink FX High-Speed Development Interface

U-MULTILINK-FX
Additional hardware available. View our featured partner solutions.
^{Emulators, Probes, and Programmers}
PEmicro Cyclone programmer

CYCLONE

Software

5 software files

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^{Code Snippets}
Example routines

ZIPRev 0Oct 5, 202041.3 KBSAMPPROGCOD
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^{Code Snippets}
HC05 Software Example: Home Thermostat example using the 705C8 with indoor/outdoor temperature and time of day

ZIPRev 0Oct 5, 202017.2 KBC8THERMSW
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^Libraries
IEC 60730 Safety Standard for Household Appliances

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Additional software available. View our featured partner solutions.
^{IDE and Build Tools}
DOS based freeware assembler

ZIPRev 0Aug 6, 200261.0 KBASHC5ASM
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^{Test, Debug and Analyzer Software}
FreeMASTER Run-Time Debugging Tool

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Note: For better experience, software downloads are recommended on desktop.

Engineering Services

To get further assistance directly from NXP, please see our Engineering Services.

4 engineering services

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^{Independent Design House (IDH)}
Embedded Software Design

By TAGnology RFID GmbH GoldHQ: Voitsberg, AustriaSupporting Regions: Europe
^{Independent Design House (IDH)}
Hardware/Software development and testing

By FPT Software GoldHQ: Hanoi, VietnamSupporting Regions: Americas, Asia
^{Independent Design House (IDH)}
Hardware Design Services

By TAGnology RFID GmbH GoldHQ: Voitsberg, AustriaSupporting Regions: Europe
^{Independent Design House (IDH)}
Hardware Engineering Services

By Dornerworks Ltd. GoldHQ: Grand Rapids, United StatesSupporting Regions: Americas

To find a complete list of our partners that support this product, please see our Partner Marketplace.

Training

1 trainings

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^{On-Demand Webinar}
DO-178C & Multicore

3 dayBy Rapita Systems Registered Partner

Microcontroller

Product Details

Block Diagram

Washer Machines Microcontrollers for M68HC05 Family Block Diagram

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Example routines

HC05 Software Example: Home Thermostat example using the 705C8 with indoor/outdoor temperature and time of day

DOS based freeware assembler

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