FEATURES

· Internal memory

• Program memory (ROM)

: 8064 ´ 8 bits (mPD75108A)

: 4096 ´ 8 bits (mPD75104A)

• Data memory (RAM)

: 512 ´ 4 bits (mPD75108A)

: 320 ´ 4 bits (mPD75104A)

· Architecture “75X” rivaling 8-bit microcomputers

· 43 systematically organized instructions

• A wealth of bit manipulation instructions

• 8-bit data transfer, compare, operation, increment, and decrement instructions

• 1-byte relative branch instructions

• GETI instruction executing 2-/3-byte instruction with one byte

· High speed. Minimum instruction execution time: 0.95 ms (at 4.19 MHz, 5V)

· Instruction execution time change function: 0.95 ms/1.91 ms/15.3 ms (at 4.19 MHz)

· I/O port pins as many as 58

· Three channels of 8-bit timers

· 8-bit serial interface

· Multiplexed vector interrupt function