M69AW024BE Datasheet, PDF (21/25 Pages) STMicroelectronics – 16 Mbit (1M x16) 3V Asynchronous PSRAM

Figure 18. Power-Down Entry ad Exit AC Waveforms
M69AW024BE
E1
E2
DQ0-D15
tCLEL
Hi-Z
tELCH
tEHCH
tCHEL
Power-Down
Entry
Power-Down Mode
Power-Down
Exit
Note: The Power-Down mode timing can also be used as a Reset timing if the Power-up mode timing cannot be satisfied.
Figure 19. Standby Mode Entry AC Waveforms, after Read or Write
AI09946
E1
G
High
W
tEHGH
E1
High
G
W
tEHWH
Active (Read)
Standby
Active (Write)
Standby
AI07741b
Note: Both t_EHGH and t_EHWH define the earliest entry timing for Standby mode. If one of these timings is not satisfied, it takes a t_AVAX(min)
delay to enter Standby mode from E1 rising edge.
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