SanDisk SDSDB-32-201-80 - Industrial Grade Flash Memory..., Product Manual

Page: 82 / 113

Secure Digital (SD) Card Protocol Description
4-32 SanDisk Secure Digital (SD) Card Product Manual, Rev. 1.9 © 2003 SANDISK CORPORATION
4.11.4. Timing Values
Table 4-17 defines all timing values. For more information, refer to Table 5-5 and 5.1.9.2 in Section 5.0, and the
applications note in Appendix A, “Host Design Considerations: NAND MMC and SD-based Products.”
Table 4-17. Timing Values
Min. Max. Unit
N
CR
2 64 Clock Cycles
N
ID
5 5 Clock Cycles
N
AC
2 See note. Clock Cycles
N
RC
8 - Clock Cycles
N
CC
8 - Clock Cycles
N
WR
2 - Clock Cycles
NOTE : min [{(TAAC
∗
f ) + (NSAC
∗
100)}, {(100ms
∗
f)}] where units = (clocks) and “f” is the clock frequency.