CDP68HC05C4, CDP68HC05C8,
CDP68HCL05C4, CDP68HCL05C8,
CDP68HSC05C4, CDP68HSC05C8
Semiconductor
October 1995
8-Bit Microcontroller Series
The following are some of the hardware and software
highlights of the CDP68HC05C4 family of HCMOS Micro-
computers.
Hardware Features (All Types)
• HCMOS Technology
Software Features
• Similar to MC6800
• 8-Bit Architecture
• 8 x 8 Unsigned Multiply Instruction
• Efficient Use of Program Space
• Versatile Interrupt Handling
• True Bit Manipulation
• Power-Saving STOP, WAIT and Data Retention Modes
• Fully Static Operation
• On-Chip Memory
- CDP68HC05C4, CDP68HCL05C4, CDP68HSC05C4
- 176 Bytes of RAM
- 4160 Bytes of User ROM
• Addressing Modes with Indexed Addressing for Table
• Efficient Instruction Set
• Memory Mapped I/O
- CDP68HC05C8, CDP68HCL05C8, CDP68HSC05C8
- 176 Bytes of RAM
- 7744 Bytes of User ROM
• Two Power-Saving Standby Modes
• Upward Software Compatible with the CDP6805
CMOS Family
• 24 Bidirectional I/O Lines and 7 Input-Only Lines
• Internal 16-Bit Timer
Description
• Serial Communications Interface (SCI) System
• Serial Peripheral Interface (SPI) System
• Self-Check Mode
The CDP68HC05C4 HCMOS Microcomputer is a member of
the CDP68HC05 family of low-cost single chip microcomput-
ers. This 8-bit microcomputer unit (MCU) contains an on-
chip oscillator, CPU, 176 bytes of RAM, 4160 bytes of user
ROM, I/O, two serial interface systems, and timer. The fully
static design allows operation at frequencies down to DC,
further reducing its already low-power consumption.
• External, Timer, SCI, and SPI Interrupts
• Master Reset and Power-On Reset
• On-Chip Oscillator with RC or Crystal Mask Options
The CDP68HC05C8 is similar to the CDP68HC05C4 except
for the size of on-chip ROM. The CDP68HC05C8 has 7744
bytes of on-chip user ROM. All information pertaining to the
CDP68HC05C4 MCU applies to the CDP68HC05C8 with
the exception of the memory description.
• 40 Lead Dual-In-Line, 44 Lead† Plastic Chip Carrier,
and 44 Lead Metric Plastic Quad Flatpack Packages
• CDP68HC05C4, CDP68HC05C8
- 4.2MHz Operating Frequency (2.1MHz Internal Bus
Frequency) at 5V; 2.0MHz (1.0MHz Internal Bus) at
3.0V
The CDP68HCL05C4 and CDP68HCL05C8 MCU devices
are low-power versions of the CDP68HC05C4 and
CDP68HC05C8, respectively. They contain all the features
of the CDP68HC05C4 and CDP68HC05C8 with additional
features of lower power consumption in the RUN, WAIT and
STOP modes; and low voltage operation down to 2.4V.
- Single 3.0V to 6.0V Supply (2.0V Data Retention
Mode)
• CDP68HCL05C4, CDP68HCL05C8
- Lower Supply Current, IDD in RUN, WAIT and STOP
Modes at 5.5V, 3.6V and 2.4V
The CDP68HSC05C4 and CDP68HSC05C8 MCU devices
are high-speed versions of the CDP68HC05C4 and
CDP68HC05C8, respectively. They also contain all the fea-
tures of the CDP68HC05C4 and CDP68HC05C8 with the
additional capability of higher frequency operation at
8.0MHz.
- Single 2.4V to 6.0V Supply (2V Data Retention
Mode)
• CDP68HSC05C4, CDP68HSC05C8
- 8.0MHz Operating Frequency (4.0MHz Internal Bus
Frequency)
† Pin number references throughout this specification refer to the 40
lead DIP. See pinouts for cross reference.
• Single 3.0V to 6.0V Supply (2.0V Data Retention Mode)
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper I.C. Handling Procedures.
File Number 2748.3
Copyright © Harris Corporation 1995
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