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

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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

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NEC

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4-BIT SINGLE-CHIP MICROCOMPUTER

DESCRIPTION\nThe μPD7566A is a product of the μPD7554, 7564 sub-series which is a low-end, low-cost version of the μPD7500 series microcomputers. This 4-bit single-chip microcomputer has fewer ports than the other products in the μPD7500 series, in order to reduce the package size, and is especially ? 45 instructions (subset of the μPD7500H SET B)\n? Instruction cycle: 2.86 microseconds (700 kHz, at 5V) with ceramic oscillator\n? Program memory (ROM): 1,024 words x 8 bits\n? Data memory (RAM): 64 words x 4 bits\n? Test sources: 1 external and 1 internal\n? 8-bit timer/event counter\n? 19 I/O li;

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