MC9328MXL Datasheet, PDF (65/84 Pages) Freescale Semiconductor, Inc – i.MX Integrated Portable System Processor

Table 25. SDRAM Refresh Timing Parameter Table (Continued)
Specifications
1.8V ± 0.10V
3.0V ± 0.30V
Ref
No.
Parameter
Unit
Minimum Maximum Minimum Maximum
3 SDRAM clock cycle time
11.4
–
10
–
ns
4 Address setup time
3.42
–
3
–
ns
5 Address hold time
2.28
–
2
–
ns
6 Precharge cycle period
t_RP1
–
t_RP1
–
ns
7 Auto precharge command period
t_RC1
–
t_RC1
–
ns
1. t_RP and t_RC = SDRAM clock cycle time. These settings can be found in the MC9328MXL reference
manual.
SDCLK
CS
RAS
CAS
WE
ADDR
DQ
DQM
CKE
BA
Figure 51. SDRAM Self-Refresh Cycle Timing Diagram
MC9328MXL Advance Information, Rev. 5
Freescale Semiconductor
65