UPD75104A中文資料瑞薩數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

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