68HC05SR3 : Microcontroller

 

The MC68HC705SR3 is an EPROM version of the MC68HC05SR3, which is a member of the M68HC05 family of low-cost single-chip microcontrollers. This 8-bit microcontroller unit (MCU) contains on-chip oscillator, CPU, RAM, ROM, I/O, Timer, and Analog-to-Digital Converter. The MC68HC05SR3 is pin compatible with the MC6805R3 and is provided as a low power upgrade path for MC6805R3 applications. The low power advantage of CMOS is combined with the addition of I/O and port modifications which help eliminate external components in cost sensitive applications. The MC68HC705SR3 is available in windowed and OTP packages. All refrences to the MC68HC05SR3 apply equally to the MC68HC705SR3, unless otherwise stated.
Page Contents
Other Info
68HC05SR3 Features

  • Fully static chip design featuring the industry standard 8-bit MC68HC05 core
  • Pin compatible with the MC6805R3
  • Power saving STOP, WAIT, and SLOW modes
  • 3840 bytes EPROM with security bit
  • 192 bytes of RAM (64 bytes for stack)
  • 32 bidirectional I/O lines
  • Keyboard interrupts
  • 8-bit count-down timer with programmable 7-bit prescaler
  • On-chip crystal oscillator, with built-in capacitator for RC option
  • Second software programmable external interrupt line (IRQ2)
  • Direct LED drive capability on all ports
  • Programmable 20KW pull-up resistors integrated into I/O ports
  • Internal 100KW pull-up resistors on IRQ and RESET pins
  • Four channel 8-bit Analog to Digital Converter
  • Low Voltage Reset
  • Available in 40-pin PDIP, 42-pin SDIP and 44-pin QFP packages

 

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68HC05SR3 Parametrics

RAM
Bytes
Timer
ROM
KBytes
I/O
A/D
Operating Voltage
V
Bus Frequency
(Max)
MHz
192
8-Bit
3.75
32
4-CH 8-Bit
3.3, 5.0
2.1

 

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68HC05SR3 Documentation

Application Note
ID Name Format Size K Rev # Date Last Modified
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
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
AN1743 Scrolling Message Software pdf 127 0 1/01/1998
AN1705 Noise Reduction Techniques for Microcontroller-Based Systems pdf 67 0 1/01/1999


Data Sheets
ID Name Format Size K Rev # Date Last Modified
MC68HC05SR3D MC68HC05SR3, MC68HC705SR3 Technical Data pdf 612 2 2/23/2000


Miscellaneous
ID Name Format Size K Rev # Date Last Modified
68HC705SR3MSE3 68HC705SR3 Device Information Sheet: 1F10W Mask Sets pdf 17 0 1/01/1999
MC68HC05SR3D_H 68HC705SR3, 68HC05SR3 Technical Data Book pdf 0 - -


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


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


Users Guide
ID Name Format Size K Rev # Date Last Modified
M68HC705SR3PGMR M68HC705SR3PGMR Programmer User's Manual pdf 46 0 3/01/1994

 

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68HC05SR3 Orderable Parts

Orderable Part ID Package Info Status Remarks
MC68HC705SR3P Plastic Dual In-Line Package (PDIP) Active - Production Part 0 to +70 C
MC68HC705SR3FB Plastic Quad Flat Pack (QFP) Active - Production Part 0 to +70 C
MC68HC705SR3B Shrink Dual In-Line Package (SDIP) Active - Production Part 0 to +70 C

 

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