MC68HC705JP7 Datasheet, PDF (25/242 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
General Description
Device Options
• Internal oscillator for lower-power operation, approximately
100 kHz (500 kHz selected as device option)
• EPROM security bit⁽¹⁾ to aid in locking out access to
programmable EPROM array
• MOR selectable computer operating properly (COP) watchdog
system
• Power-saving stop and wait mode instructions (MOR selectable
STOP conversion to halt and option for fast 16-cycle restart
and power-on reset)
• On-chip temperature measurement diode
• MOR selectable reset module to reset central processor unit
(CPU) in low-voltage conditions
• Illegal address reset
• Internal steering diode and pullup device on RESET pin to V_DD
1.4 Device Options
These MC68HC705JJ7/MC68HC705JP7 device options are available:
• On-chip oscillator type: crystal/ceramic resonator connections or
resistor-capacitor (RC) connections
• Nominal frequency of internal low-power oscillator: 100 or
500 kHz
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 15. Electrical
Specifications.
1. No security feature is absolutely secure. However, Motorola’s strategy is to make reading or
copying the EPROM/OTPROM difficult for unauthorized users.
MC68HC705JJ7 • MC68HC705JP7 — REV 4
MOTOROLA
General Description
For More Information On This Product,
Go to: www.freescale.com
Advance Information
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