
NAND FLASH CONTROLLER S3C2440A RISC MICROPROCESSOR 
6-4   
NAND FLASH MEMORY TIMING 
HCLK
CLE / ALE
nWE
TACLS TWRPH0 TWRPH1
DATA
COMMAND / ADDRESS
 
Figure 6-3. CLE & ALE Timing (TACLS=1, TWRPH0=0, TWRPH1=0) 
 
HCLK
nWE / nRE
DATA DATA
TWRPH0 TWRPH1
 
Figure 6-4 nWE & nRE Timing (TWRPH0=0, TWRPH1=0)