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FM27C512VE90 데이터시트(PDF) 6 Page - Fairchild Semiconductor |
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FM27C512VE90 데이터시트(HTML) 6 Page - Fairchild Semiconductor |
6 / 10 page 6 www.fairchildsemi.com www.fairchildsemi.com FM27C512 Rev. A Turbo Programming Algorithm Flow Chart FIGURE 1. V CC = 6.5V VPP = 12.75V n = 0 ADDRESS = FIRST LOCATION CHECK ALL BYTES 1ST: V CC = VPP = 6.0V 2ND: V CC = VPP = 4.3V PROGRAM ONE 50 µs PULSE INCREMENT n ADDRESS = FIRST LOCATION VERIFY BYTE n = 10? DEVICE FAILED LAST ADDRESS ? INCREMENT ADDRESS n = 0 PROGRAM ONE 50 µs PULSE INCREMENT ADDRESS VERIFY BYTE LAST ADDRESS ? PASS NO FAIL YES YES PASS NO FAIL NO YES DS800035-6 Note: The standard National Semiconductor algorithm may also be used but it will take longer programming time. |
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