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M48Z2M1V Datasheet(PDF) 8 Page - STMicroelectronics |
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M48Z2M1V Datasheet(HTML) 8 Page - STMicroelectronics |
8 / 17 page M48Z2M1Y, M48Z2M1V 8/17 Figure 8. Chip Enable Controlled, WRITE Mode AC Waveforms Note: Output Enable (G) = High. Table 4. WRITE Mode AC Characteristics Note: 1. Valid for Ambient Operating Temperature: TA = 0 to 70°C; VCC = 4.5 to 5.5V or 3.0 to 3.6V (except where noted). 2. CL = 5pF (see Figure 10., page 11). 3. If E goes low simultaneously with W going low, the outputs remain in the high impedance state. Symbol Parameter(1) M48Z2M1Y M48Z2M1V Unit –70 –85 Min Max Min Max tAVAV WRITE Cycle Time 70 85 ns tAVEH Address Valid to Chip Enable High 65 75 ns tAVEL Address Valid to Chip Enable Low 0 0 ns tAVWH Address Valid to WRITE Enable High 65 75 ns tAVWL Address Valid to WRITE Enable Low 0 0 ns tDVEH Input Valid to Chip Enable High 30 35 ns tDVWH Input Valid to WRITE Enable High 30 35 ns tEHAX Chip Enable High to Address Transition 15 15 ns tEHDX Chip Enable High to Input Transition 10 15 ns tELEH Chip Enable Low to Chip Enable High 55 75 ns tWHAX WRITE Enable High to Address Transition 5 5 ns tWHDX WRITE Enable High to Input Transition 0 0 ns tWHQX (2,3) WRITE Enable High to Output Transition 5 5 ns tWLQZ (2,3) WRITE Enable Low to Output Hi-Z 25 30 ns tWLWH WRITE Enable Pulse Width 55 65 ns AI02054 tAVAV tEHAX tDVEH A0-A20 E W DQ0-DQ7 VALID tAVEH tAVEL tAVWL tELEH tEHDX DATA INPUT |
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