68HC705L16 : Microcontroller

 

The MC68HC705L16 is an 80-pin microcontroller unit (MCU) with highly sophisticated on-chip peripheral functions. The memory map includes 16 Kbytes of user ROM and 512 bytes of RAM. The MCU has five parallel ports: A, B, C, D, and E. The MC68HC05L16 includes a timebase circuit, 8- and 16-bit timers, a computer operating properly (COP) watchdog timer, liquid crystal display (LCD) drivers, and a simple serial peripheral interface (SSPI).
Page Contents
Other Info
68HC705L16 Features

  • Low-cost HC05 core
  • 16,400 Bytes of mask EPROM, including 16 bytes of user vectors and 512 bytes of on-chip RAM
  • General-purpose data pins:
    • 16 bidirectional pins
    • 8 input/ouptut-only pins
    • 15 output-only pins, including 8-bit key wakeup interrupts
  • Pullup resistors options
  • Open-drain outputs options
  • Two interrupt request (IRQ) inputs
  • 16-bit timer with input capture and output compare (timer 1)
  • 8-bit event counter/modulus clock divider (timer 2)
  • Simple serial peripheral interface (SSPI)
  • LCD drivers - 1-to-4 backplane drivers x 27-to-39 frontplane drivers
  • On-chip timebase circuits with COP watchdog timer and timebase interrupts
  • Dual oscillators and selectable system clock frequency
  • Power-saving stop mode and wait mode
  • 80-pin quad flat pack (QFP) package

 

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68HC705L16 Parametrics

RAM
Bytes
EPROM/OTP
Bytes
Timer
I/O
Serial
Operating Voltage
V
Bus Frequency
(Max)
MHz
512
16K
16-Bit 1I/C 1O/C, 8-Bit 1I/C 1O/C, RTI
39
SIOP
3.3, 5.0
2.1

 

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68HC705L16 Documentation

Application Note
ID Name Format Size K Rev # Date Last Modified
AN-HK-17 Low Cost Low Voltage Active Filter for MC68HC05F2 DTMF Output pdf 244 0 1/01/1992
AN-HK-23 MC6805R3 and MC68HC05SR3 Technical Comparison pdf 544 0 1/01/1994
AN-HK-22 MC68HC05SR3 and MC68HC705SR3 Design Notes pdf 3241 0 1/01/1994
AN-HK-24 Software Emulation of DDC1 Hardware Using HC05BD3 pdf 629 0 1/01/1994
AN-HK-12 Using MC68HC05F6 as Tone Pulse Dialer with Melody-on-Hold pdf 1231 0 1/01/1998
AN1820 Software I2C Communications pdf 55 0 1/01/1999
AN1818 Software SCI Routines with the 16-Bit Timer Module pdf 84 0 1/01/1999
AN1759 Add a Non-Volatile Clock to the MC68HC705J1A pdf 116 0 1/01/1998
AN1757 Add a Unique Silicon Serial Number to the HC05 pdf 106 0 1/01/1998
AN1758 Add Addressable Switches to the HC05 pdf 112 0 1/01/1998
AN1763 Driving LCD Displays Using the MC68HC705L16 Microcontroller pdf 139 0 1/01/1998
AN1760 Interfacing the AD8402 Digital Potentiometer to the MC68HC705J1A pdf 123 0 1/01/1998
AN1761 Interfacing the MC68HC705C8A to the X76F041 PASS SecureFlash pdf 180 0 1/01/1998
AN1755 Interfacing the MC68HC705C8A to the DS2430A 256-Bit 1-Wire EEPROM pdf 130 0 1/01/1998
AN1754 Interfacing the MC68HC705J1A to the DS1620 Digital Thermometer pdf 111 0 1/01/1998
AN1740 Applications Using the Analog Subsystem on MC68HC05JJ/JP Series Microcontrollers pdf 425 0 1/01/1998
AN1741 In-Circuit and Emulation Considerations for MC68HC05JJ/JP Series Microcontrollers pdf 125 0 1/01/1998
AN1745 Interfacing the HC705C8A to an LCD Module pdf 157 0 1/01/1998
AN1746 Migrating from the MC68HC705K1 to the MC68HC705KJ1 pdf 98 0 1/01/1998
AN1747 Migrating from the MC68HC705K1 to the MC68HC805K3 pdf 132 1.0 10/13/2000
AN1742 Programming the 68HC705J1A In-Circuit pdf 83 0 1/01/1998
AN1730 Digital Amplification Control of an Analog Signal Using the MC68HC705J1A pdf 106 0 1/01/1997
AN1733 Implementing Caller ID Functionality in MC68HC(7)05 Applications pdf 312 0 1/01/1998
AN1738 Instruction Cycle Timing of MC68HC05JJ/JP Series Microcontrollers pdf 111 0 1/01/1998
AN1737 Migrating from the MC68HC705J2 to the MC68HC705JJ7 pdf 170 0 1/01/1998
AN1734 Pulse Width Modulation Using the 16-Bit Timer pdf 102 0 1/01/1998
AN1736 Variations in the Motorola MC68HC05Px Family pdf 203 1 1/01/1998
AN1723 Interfacing MC68HC05 Microcontrollers to the IBM AT Keyboard Interface pdf 274 0 1/01/1997
AN1708 Single-Slope Analog-to-Digital (A/D) Conversion pdf 82 0 1/01/1997
AN1627 Low Cost High Efficiency Sensorless Drive for Brushless dc Motor Using MC68HC(7)05MC4 pdf 626 0 1/01/1999
AN1663 Low Cost Universal Motor Sensorless Phase Angle Drive System pdf 1178 0 1/01/1998
AN1292 Adding a Voice User Interface to M68HC05 Applications pdf 176 0 1/01/1996
AN1298 Variations in the Motorola MC68HC(7)05Cx Family pdf 192 0 1/01/1996
AN1288 Programming the MC68HC(8)05K3 Personality EEPROM on the MMDS and MMEVS pdf 311 0 1/01/1996
AN1262 Simple Real-Time Kernels for M68HC05 Microcontrollers pdf 134 0 1/01/1995
AN1256 Interfacing the HC05 MCU to a Multichannel Digital-to-Analog Converter Using the MC68HC705C8A and the MC68HC705J1A pdf 89 1.1 1/01/1995
AN1257 Using the M68HC05 Family On-Chip Voltage Regulator pdf 295 0 1/01/1995
AN1239 HC05 MCU Keypad Decoding Techniques Using the MC68HC705J1A pdf 65 1 1/01/1996
AN1238 HC05 MCU LED Drive Techniques Using the MC68HC705J1A pdf 27 0 1/01/1995
AN1240 HC05 MCU Software-Driven Asynchronous Serial Communication Techniques Using the MC68HC705J1A pdf 94 0 1/01/1995
AN1241 Interfacing the MC68HC705J1A to 9356/9366 EEPROMs pdf 71 0 1/01/1995
AN1224 Example Software Routines for the Message Data Link Controller Module on the MC68HC705V8 pdf 220 0 1/01/1993
AN1228 Interfacing the M68HC05 MCU to the MC145051 A/D Converter pdf 160 2 1/01/1997
AN1226 Use of the 68HC705C8A in Place of a 68HC705C8 pdf 90 4 1/01/1996
AN1227 Using 9346 Series Serial EEPROMs with 6805 Series Microcontrollers pdf 401 1 1/01/1997
AN1212 J1850 Multiplex Bus Communication Using the MC68HC705C8 and the SC371016 J1850 Communications Interface (JCI) pdf 3321 0 1/01/1992
AN1120 Basic Servo Loop Motor Control Using the MC68HC05B6 MCU pdf 613 0 1/01/1991
AN1066 Interfacing the MC68HC05C5 SIOP to an I2C Peripheral pdf 1363 0 1/01/1991
AN1055 M6805 16-Bit Support Macros pdf 1048 0 1/01/1990
AN1067 Pulse Generation and Detection with Microcontroller Units pdf 2247 0 1/01/1991
AN991 Using the Serial Peripheral Interface to Communicate Between Multiple Microcomputers pdf 6198 0 1/01/1987
AN499 Let the MC68HC705 Program Itself pdf 154 0 7/01/1996
AN463 68HC05K0 Infra-red Remote Control pdf 111 0 1/01/1992
AN464 Software Driver Routines for the Motorola MC68HC05 CAN Module pdf 2859 0 1/01/1993
AN442 Driving LCDs with M6805 Microprocessors pdf 1134 0 1/01/1991
AN434 Serial Bootstrap for the RAM and EEPROM1 of the MC68HC05B6 pdf 866 0 1/01/1990
AN431 Temperature Measurement and Display Using the MC68HC05B4 and the MC14489 pdf 1439 0 1/01/1990
ANE416 MC68HC05B4 Radio Synthesizer pdf 1958 0 1/01/1988
ANE420 Monitor Program for the MC68HC05B6 Microcomputer Unit pdf 1530 0 1/01/1988
AN1783 Determining MCU Oscillator Start-Up Parameters pdf 48 1 1/01/1999
AN1661 Low Cost Universal Motor Chopper Drive System pdf 696 1 5/02/2001
AN1833 A Low-Power Wireless Remote Control Transmitter and Receiver pdf 289 0 11/28/2000
AN1775 Expanding Digital Input with an A/D Converter pdf 86 1 1/01/1998
AN1771 Precision Sine-Wave Tone Synthesis Using 8-Bit MCUs pdf 250 0 1/01/1998
AN4006 Digital Captive Discharge Ignition System Using HC05/HC08 8-Bit Microcontrollers pdf 61 0 3/27/2000
AN1752 Data Structures for 8-Bit Microcontrollers pdf 213 1 5/07/2001
AN1744 Resetting Microcontrollers During Power Transitions pdf 80 0 1/01/1998
AN2103 Local Interconnect Network (LIN) Demonstration pdf 953 0 12/01/2000
AN1743 Scrolling Message Software pdf 127 0 1/01/1998
AN1705 Noise Reduction Techniques for Microcontroller-Based Systems pdf 67 0 1/01/1999
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
AN1057 Selecting the Right Microcontroller Unit pdf 241 0 1/01/2000
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


Data Sheets
ID Name Format Size K Rev # Date Last Modified
HC05L16GRS 68HC05L16 and 68HC705L16 General Release Specification pdf 1937 3 7/14/1998


Engineering Bulletin
ID Name Format Size K Rev # Date Last Modified
EB413 Resetting MCUs pdf 62 0 1/01/2000
EB421 The Motorola MCAN Module pdf 78 0 2/23/2000
EB180 Differences between the MC68HC705B16 and the MC68HC705B16N pdf 26 0 1/01/1996
EB181 Frequently Asked Questions and Answers for the M68HC05 Family MCAN Module pdf 181 0 1/01/1997
EB166 System Design Considerations: Converting from the MC68HC805B6 to the MC68HC705B16 Microcontroller pdf 757 0 1/01/1993
EB349 RAM Data Retention Considerations for Motorola Microcontrollers pdf 45 0 6/22/2000


Reference Manual
ID Name Format Size K Rev # Date Last Modified
M68HC05AG M68HC05 Applications Guide pdf 1342 3 1/01/1996
M68HC05TB HC05 Family - Understanding Small Microcontrollers pdf 2866 2 1/01/1998
MC68HC05CXRG MC68HC05C4, C8, C9, MC68HC705C8, MC68HC805C4, MC68HCL05C4, C8, MC68HSC05C4, C8 Programming Reference pdf 3150 1 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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68HC705L16 Orderable Parts

Orderable Part ID Package Info Status Remarks
MC68HC05L16FU 20X20 mm Plastic Quad Flat Pack (QFP) Active - Production Part -
MC68HC05L16CFU 80-Pin Plastic Quad Flat Pack (QFP) Active - Production Part -40 to +85 C

 

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