The MC68HC705J1A is a member of the cost-effective, high-performance M68HC05 family of 8-bit microcontroller units (MCUs). All MCUs in the family use the popular M68HC05 central processor unit (CPU) and are available with a variety of subsystems, memory sizes and types and package types. On-chip memory of the MC68HC705J1A includes 1240B of user EPROM and 64B of user RAM.
Features
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Popular M68HC05 CPU
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Memory-mapped input/output (I/O) registers
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1240B of EPROM/OTPROM, including 8B for user vectors
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64B of user RAM
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Peripheral modules
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15-Stage multifunction timer
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Computer operating properly (COP) watchdog
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14 bidirectional I/O lines, including:
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10 mA sink capability on four I/O pins
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Mask option register (MOR) and software programmable pulldowns on all I/O pins
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MOR selectable interrupt on four I/O pins, a keyboard scan feature
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