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MC9328MX1 Datasheet, PDF (77/96 Pages) Freescale Semiconductor, Inc – i.MX Integrated Portable System Processor
SDCLK
CS
RAS
CAS
13
2
6
Specifications
WE
ADDR
DQ
4
5
/ BA
ROW/BA
7
COL/BA
8
9
DATA
DQM
Figure 58. SDRAM/SyncFlash Write Cycle Timing Diagram
Table 35. SDRAM Write Timing Parameter Table
1.8V
3.3V
Ref
No.
Parameter
Unit
Minimum Maximum Minimum Maximum
1 SDRAM clock high-level width
2.67
–
4
–
ns
2 SDRAM clock low-level width
6
–
4
–
ns
3 SDRAM clock cycle time
10.4
–
10
–
ns
4 Address setup time
3.42
–
3
–
ns
5 Address hold time
6 Precharge cycle period1
2.28
–
2
–
ns
tRP2
–
tRP2
–
ns
7 Active to read/write command delay
tRCD2
–
tRCD2
–
ns
MC9328MX1 Advance Information, Rev. 4
Freescale Semiconductor
77