MC9328MXL Datasheet, PDF (64/84 Pages) Freescale Semiconductor, Inc – i.MX Integrated Portable System Processor

Specifications
Table 24. SDRAM Write Timing Parameter Table (Continued)
1.8V ± 0.10V
3.0V ± 0.30V
Ref
No.
Parameter
Unit
Minimum Maximum Minimum Maximum
8 Data setup time
4.0
–
2
–
ns
9 Data hold time
2.28
–
2
–
ns
1. Precharge cycle timing is included in the write timing diagram.
2. t_RP and t_RCD = SDRAM clock cycle time. These settings can be found in the MC9328MXL reference
manual.
SDCLK
CS
13
2
RAS
6
CAS
WE
ADDR
4
5
BA
7
7
ROW/BA
DQ
DQM
Figure 50. SDRAM Refresh Timing Diagram
Table 25. SDRAM Refresh Timing Parameter Table
1.8V ± 0.10V
3.0V ± 0.30V
Ref
No.
Parameter
Unit
Minimum Maximum Minimum Maximum
1
2
64
SDRAM clock high-level width
2.67
–
4
SDRAM clock low-level width
6
–
4
MC9328MXL Advance Information, Rev. 5
–
ns
–
ns
Freescale Semiconductor