4-BIT SINGLE-CHIP MICROCOMPUTER

SEMICONDUCTOR SELECTION GUIDE Microcomputer IC Memory Semi-Custom IC Particular Purpose IC General Purpose Linear IC Transistor / Diode / Thyristor Microwave Device / Consumer Use High Frequency Device Optical Device Packages Index (Quick Reference by Type N

4-BIT, SINGLE-CHIP CMOS MICROCOMPUTERS WITH COMPARATOR

Description The μPD7556/66A and μPD7566/66A are low-end versions of μPD7500 series products. These microcomputers incorporated a 4-bit comparator input and are useful as slave CPUs to high-end μPD7500 series or 8-bit μCOM-87 series products. Features

MOS INTEGRATED CIRCUIT

FEATURES • 45 instructions (subset of the mPD7500H SET B) • Instruction cycle: 2.86 microseconds (700 kHz, at 5V) with ceramic oscillator • Program memory (ROM): 1,024 words x 8 bits • Data memory (RAM): 64 words x 4 bits • Test sources: 1 external and 1 internal • 8-bit timer/event counter

4-BIT SINGLE-CHIP MICROCOMPUTER

SEMICONDUCTOR SELECTION GUIDE Microcomputer IC Memory Semi-Custom IC Particular Purpose IC General Purpose Linear IC Transistor / Diode / Thyristor Microwave Device / Consumer Use High Frequency Device Optical Device Packages Index (Quick Reference by Type N

4-BIT SINGLE-CHIP MICROCOMPUTER

SEMICONDUCTOR SELECTION GUIDE Microcomputer IC Memory Semi-Custom IC Particular Purpose IC General Purpose Linear IC Transistor / Diode / Thyristor Microwave Device / Consumer Use High Frequency Device Optical Device Packages Index (Quick Reference by Type N

4-BIT SINGLE-CHIP MICROCOMPUTER

SEMICONDUCTOR SELECTION GUIDE Microcomputer IC Memory Semi-Custom IC Particular Purpose IC General Purpose Linear IC Transistor / Diode / Thyristor Microwave Device / Consumer Use High Frequency Device Optical Device Packages Index (Quick Reference by Type N

4-BIT SINGLE-CHIP MICROCOMPUTER

SEMICONDUCTOR SELECTION GUIDE Microcomputer IC Memory Semi-Custom IC Particular Purpose IC General Purpose Linear IC Transistor / Diode / Thyristor Microwave Device / Consumer Use High Frequency Device Optical Device Packages Index (Quick Reference by Type N