MC68HC705JP7 Datasheet, PDF (24/242 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
General Description
1.3 Features
Features of the two parts include:
• Low-cost, M68HC05 core MCU in 20-pin package
(MC68HC705JJ7) or 28-pin package (MC68HC705JP7)
• 6160 bytes of user EPROM, including 16 bytes of user vectors
• 224 bytes of low-power user random-access memory (RAM)
• 64 bits of personality EPROM (serial access)
• 16-bit programmable timer with input capture and output compare
• 15-stage core timer, including 8-bit free-running counter
and 4-stage selectable real-time interrupt generator
• Simple serial input/output port (SIOP) with interrupt capability
• Two voltage comparators, one of which can be combined with the
16-bit programmable timer to create a 4-channel, single-slope
analog-to-digital (A/D) converter
• Output of voltage comparator can drive port pin PB4 directly under
software control
• 14 input/output (I/O) lines (MC68HC705JJ7) or 22 I/O lines
(MC68HC705JP7), including high-source/sink current capability
on 6 I/O pins (MC68HC705JJ7) or 14 I/O pins (MC68HC705JP7)
• Programmable 8-bit mask option register (MOR) to select mask
options found in read-only memory (ROM) based versions
• MOR selectable software programmable pulldowns on all I/O pins
and keyboard scan interrupt on four I/O pins
• Software mask and request bit for IRQ interrupt with MOR
selectable sensitivity on IRQ interrupt (edge- and level-sensitive or
edge-only)
• On-chip oscillator with device option of crystal/ceramic resonator
or resistor-capacitor (RC) operation and MOR selectable shunt
resistor, 2 MΩ by design
Advance Information
24
MC68HC705JJ7 • MC68HC705JP7 — REV 4
General Description
For More Information On This Product,
Go to: www.freescale.com
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