AT27C2048_14 Datasheet, PDF (5/12 Pages) ATMEL Corporation – Low-power CMOS operation

Figure 5-1. AC waveforms for read operation⁽¹⁾
Atmel AT27C2048
Notes:
1. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.
2. OE may be delayed up to t_CE - t_OE after the falling edge of CE without impact on t_CE.
3. OE may be delayed up to t_ACC - t_OE after the address is valid without impact on t_ACC.
4. This parameter is only sampled, and is not 100% tested.
5. Output float is defined as the point when data is no longer driven.
Figure 5-2. Input test waveforms and measurement levels
For -55 devices only:
t_R, t_F < 5ns (10% to 90%)
For -90 devices:
t_R, t_F < 20ns (10% to 90%)
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