I.MX27L_11 Datasheet, PDF (78/152 Pages) Freescale Semiconductor, Inc – Multimedia Applications Processor Multiple clock and power domains

Electrical Characteristics
SDCLK
CS
RAS
CAS
WE
ADDR
BA
CKE
SD16
SD16
Don’t care
Figure 40. SDRAM Self-Refresh Cycle Timing Diagram
NOTE
The clock continues to run unless both CKEs are low. Then the clock is
stopped in low state.
Table 40. SDRAM Self-Refresh Cycle Timing Parameters
ID
SD16
Parameter
CKE output delay time
Symbol
tCKS
Min
Max
Unit
1.8
—
ns
i.MX27 and i.MX27L Data Sheet, Rev. 1.7
78
Freescale Semiconductor