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

4-BIT SINGLE-CHIP MICROCOMPUTER

DESCRIPTION\nThe µPD7554A is a product of the µPD7554, 7564 sub-series which is a 4-bit single-chip microcomputer with a small number of ports in a small package, which is enabled to operate even at the super-low voltage of 2.0 V so that it is optimized for handy-type systems operating with dry cell • Range of supply voltage 7554A : 2.0 to 6.0 V Z\n                                   7554A(A) : 2.7 to 6.0 V\n• Drive with two 1.5 V manganese cells\n• 47 types of instructions (Subset of µPD7500H SET B)\n• Instruction cycle\n   External clock : 2.86 µs (in operation at 700 kHz, 5 V)\n   RC oscillat;

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

MOS INTEGRATED CIRCUIT

FEATURES · Range of supply voltage 7554A : 2.0 to 6.0 V 7554A(A) : 2.7 to 6.0 V · Drive with two 1.5 V manganese cells · 47 types of instructions (Subset of mPD7500H SET B) · Instruction cycle External clock : 2.86 ms (in operation at 700 kHz, 5 V) RC oscillation : 4 ms (in operation at 50

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

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