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M27C512 데이터시트(PDF) 13 Page - STMicroelectronics |
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M27C512 데이터시트(HTML) 13 Page - STMicroelectronics |
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13 / 22 page ![]() M27C512 DC and AC parameters 13/22 Table 9. Read mode AC characteristics Symbol Alt Parameter Test Condition(1) M27C512 Unit -45(2) -70 Min Max Min Max tAVQV tACC Address Valid to Output Valid E = VIL, G = VIL 45 70 ns tELQV tCE Chip Enable Low to Output Valid G = VIL 45 70 ns tGLQV tOE Output Enable Low to Output Valid E = VIL 25 35 ns tEHQZ (3) tDF Chip Enable High to Output Hi-Z G = VIL 0250 30 ns tGHQZ (3) tDF Output Enable High to Output Hi-Z E = VIL 0250 30 ns tAXQX tOH Address Transition to Output Transition E = VIL, G = VIL 00 ns 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP. 2. Speed obtained with High Speed AC measurement conditions. 3. Sampled only, not 100% tested. Table 10. Read mode AC characteristics Symbol Alt Parameter Test Condition(1) M27C512 Unit -90 -10 -12 -15 MinMax MinMax MinMax MinMax tAVQV tACC Address Valid to Output Valid E = VIL, G = VIL 90 100 120 150 ns tELQV tCE Chip Enable Low to Output Valid G = VIL 90 100 120 150 ns tGLQV tOE Output Enable Low to Output Valid E = VIL 40 40 50 60 ns tEHQZ (2) tDF Chip Enable High to Output Hi-Z G = VIL 0300300 40 050 ns tGHQZ (2) tDF Output Enable High to Output Hi- Z E = VIL 0300300 40 050 ns tAXQX tOH Address Transition to Output Transition E = VIL, G = VIL 000 0 ns 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP. 2. Sampled only, not 100% tested. |
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