MCIMX257DJM4A Freescale, MCIMX257DJM4A Datasheet - Page 63

• Manufacturer Part Number: MCIMX257DJM4A
• Manufacturer: Freescale

Specifications of MCIMX257DJM4A

• Operating Temperature (min): -20C
• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

Freescale Semiconductor
SD21 DQS – DQ Skew (defines the data valid window in read cycles related to DQS)
SD22 DQS DQ HOLD time from DQS
SD23 DQS output access time from SDCLK posedge
ID
DQS (input)
DQ (input)
SDCLK
SDCLK
Figure 30. Mobile DDR SDRAM DQ versus DQS and SDCLK Read Cycle Timing Diagram
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 6
Table 47. Mobile DDR SDRAM Read Cycle Timing Parameters
SD23
SD21
Data
Parameter
SD22
Data
Data
Data
Data
Data
tDQSCK
Symbol
tDQSQ
tQH
Data
Min. Max. Unit
2.3
—
—
Data
0.85
6.7
—
ns
ns
ns
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