參數(shù)資料
型號: MC9328MX21DVG
廠商: Motorola, Inc.
英文描述: i.MX family of microprocessors
中文描述: i.MX系列微處理器
文件頁數(shù): 79/96頁
文件大?。?/td> 1495K
代理商: MC9328MX21DVG
Specifications
MC9328MX1 Advance Information, Rev. 4
Freescale Semiconductor
79
Figure 60. SDRAM Self-Refresh Cycle Timing Diagram
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
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 MC9328MX1 reference
manual.
Table 36. SDRAM Refresh Timing Parameter Table (Continued)
Ref
No.
Parameter
1.8V
3.3V
Unit
Minimum
Maximum
Minimum
Maximum
SDCLK
CS
CAS
RAS
ADDR
DQ
DQM
BA
WE
CKE
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