MC9328MX21SCVKR2 Freescale, MC9328MX21SCVKR2 Datasheet - Page 40

• Manufacturer Part Number: MC9328MX21SCVKR2
• Manufacturer: Freescale

Specifications of MC9328MX21SCVKR2

• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

Specifications
40
1. Precharge cycle timing is included in the write timing diagram.
2. t
Ref
No.
RP
SDCLK
1
2
3
4
5
6
7
8
9
ADDR
DQM
RAS
CAS
and t
WE
DQ
CS
SDRAM clock high-level width
SDRAM clock low-level width
SDRAM clock cycle time
Address setup time
Address hold time
Precharge cycle period
Active to read/write command delay
Data setup time
Data hold time
RCD
= SDRAM clock cycle time. These settings can be found in the i.MX21 reference manual.
BA
4
1
Parameter
3
5
Table 27. SDRAM Write Cycle Timing Parameter
1
Figure 32. SDRAM Refresh Timing Diagram
6
2
MC9328MX21S Technical Data, Rev. 1.3
Minimum
t
3.00
3.67
2.95
3.41
3.00
t
RCD
2.45
7.5
RP
1.8 V ± 0.1 V
2
2
7
Maximum
–
–
–
–
–
–
–
–
–
Minimum
t
RCD
t
7.5
RP
3
3
2
2
2
2
7
3.0 V ± 0.3 V
2
2
ROW/BA
Freescale Semiconductor
Maximum
–
–
–
–
–
–
–
–
–
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns