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M28W320ECT 数据表(PDF) 24 Page - STMicroelectronics |
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M28W320ECT 数据表(HTML) 24 Page - STMicroelectronics |
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24 / 53 page ![]() M28W320ECT, M28W320ECB 24/53 Figure 9. Read AC Waveforms Table 16. Read AC Characteristics Note: 1. Sampled only, not 100% tested. 2. G may be delayed by up to tELQV - tGLQV after the falling edge of E without increasing tELQV. Symbol Alt Parameter M28W320EC Unit 70 85 90 10 tAVAV tRC Address Valid to Next Address Valid Min 70 85 90 100 ns tAVQV tACC Address Valid to Output Valid Max 70 85 90 100 ns tAXQX (1) tOH Address Transition to Output Transition Min 0 0 0 0 ns tEHQX (1) tOH Chip Enable High to Output Transition Min 0 0 0 0 ns tEHQZ (1) tHZ Chip Enable High to Output Hi-Z Max 20 20 25 30 ns tELQV (2) tCE Chip Enable Low to Output Valid Max 70 85 90 100 ns tELQX (1) tLZ Chip Enable Low to Output Transition Min 0 0 0 0 ns tGHQX (1) tOH Output Enable High to Output Transition Min 0 0 0 0 ns tGHQZ (1) tDF Output Enable High to Output Hi-Z Max 20 20 25 30 ns tGLQV (2) tOE Output Enable Low to Output Valid Max 20 20 30 35 ns tGLQX (1) tOLZ Output Enable Low to Output Transition Min 0 0 0 0 ns DQ0-DQ15 AI02688b VALID A0-A20 E tAXQX tAVAV VALID tAVQV tELQV tELQX tGLQV tGLQX ADDR. VALID CHIP ENABLE OUTPUTS ENABLED DATA VALID STANDBY G tGHQX tGHQZ tEHQX tEHQZ |
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