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M28W320FSB 数据表(PDF) 24 Page - STMicroelectronics |
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M28W320FSB 数据表(HTML) 24 Page - STMicroelectronics |
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24 / 55 page ![]() M28W320FST, M28W320FSB, M28W640FST, M28W640FSB 24/55 Figure 10. Read AC Waveforms Note: 1. Addresses range from A0 to A20 for the M28W320FS and from A0 to A21 for the M29W640FS. Table 14. 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 M28W320FST, M28W320FST M28W640FST, M28W640FSB Unit 70 70 tAVAV tRC Address Valid to Next Address Valid Min 70 70 ns tAVQV tACC Address Valid to Output Valid Max 70 70 ns tAXQX (1) tOH Address Transition to Output Transition Min 0 0 ns tEHQX (1) tOH Chip Enable High to Output Transition Min 0 0 ns tEHQZ (1) tHZ Chip Enable High to Output Hi-Z Max 20 20 ns tELQV (2) tCE Chip Enable Low to Output Valid Max 70 70 ns tELQX (1) tLZ Chip Enable Low to Output Transition Min 0 0 ns tGHQX (1) tOH Output Enable High to Output Transition Min 0 0 ns tGHQZ (1) tDF Output Enable High to Output Hi-Z Max 20 20 ns tGLQV (2) tOE Output Enable Low to Output Valid Max 20 20 ns tGLQX (1) tOLZ Output Enable Low to Output Transition Min 0 0 ns DQ0-DQ15 AI09928 VALID A0-A20/A21(1) 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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