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(2) SDRAM access timing
Parameter
Address delay time (from BUSCLK↑)
BCYSTZ delay time (from BUSCLK↑)
Note
CSZn
delay time (from BUSCLK↑)
SDRASZ delay time (from BUSCLK↑)
SDCASZ delay time (from BUSCLK↑)
SDWEZ delay time (from BUSCLK↑)
DQM0-DQM3 delay time (from BUSCLK↑)
SDCKE delay time (from BUSCLK↑)
Data input setup time (SDRAM read, from BUSCLK↑)
Data input hold time (SDRAM read, from BUSCLK↑)
Data output delay time (from BUSCLK↑)
Data float delay time (from BUSCLK↑)
REFRQZ time (from BUSCLK↑)
Note
n = 1, 3, 4, 6
26
CHAPTER 1 PRODUCT SPECIFCATIONS
Table 1-13. SDRAM Access Timing
Symbol
t
DKA
t
DKBC
t
DKCS
t
DKRAS
t
DKCAS
t
DKWE
t
DKDQM
t
DKCKE
t
SKDRM
t
HKDRM
t
DKDT1
t
DKDT2
t
HZKDT
t
DKREF
User's Manual A19069EJ2V0UM
MIN.
MAX.
1.5
11.0
1.5
9.0
1.5
11.0
1.5
11.0
1.5
11.0
1.5
11.0
1.5
11.0
1.5
11.0
−
3.8
−
1.0
1.5
11.0
1.5
11.0
1.5
11.0
1.5
11.0
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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