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MC68HC705C View Datasheet(PDF) - Motorola => Freescale

Part Name
Description
MFG CO.
MC68HC705C
Motorola
Motorola => Freescale Motorola
'MC68HC705C' PDF : 210 Pages View PDF
General Description
processor unit (CPU) and are available with a variety of subsystems,
memory sizes and types, and package types.
The MC68HC705C4A is similar to the MC68HC705C8A. The major
differences are that the MC68HC705C4A has less RAM and ROM, no
selectable memory configurations, no clock monitor reset function, and
only one computer operating properly (COP) watchdog timer. The
MC68HSC705C4A, introduced in Appendix A. MC68HSC705C4A, is
an enhanced, high-speed version of the MC68HC705C4A.
1.3 Features
Features of the MC68HC705C4A include:
M68HC05 central processor unit (CPU)
On-chip oscillator with crystal/ceramic resonator
Memory-mapped input/output (I/O)
Computer operating properly (COP) watchdog timer
Selectable port B external interrupt capability
High current drive on pin C7 (PC7)
24 bidirectional I/O lines and 7 input-only lines
Serial communications interface (SCI) system
Serial peripheral interface (SPI) system
Bootstrap capability
Power-saving stop, wait, and data-retention modes
Single 3.0-volt to 5.5-volt supply (2-volt data-retention mode)
Fully static operation
Software-programmable external interrupt sensitivity
NOTE:
A line over a signal name indicates an active low signal. For example,
RESET is active high and RESET is active low. Any reference to voltage,
current, or frequency specified in the following sections will refer to the
nominal values. The exact values and their tolerance or limits are
specified in Section 13. Electrical Specifications.
Technical Data
22
MC68HC705C4A MC68HSC705C4A Rev. 3.0
General Description
MOTOROLA
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