Rev 0.2 / Jan. 2008
43
1
HY27UF(08/16)2G2B Series
2Gbit (256Mx8bit) NAND Flash
,IVHTXHQWLDOURZUHDGHQDEOHG
&(PXVWEHKHOGORZGXULQJW5
&(GRQ¶WFDUH
K
K
&/(
&(
5(
$/(
5%
:(
,2[
6WDUW$GG&\FOH
'DWD2XWSXWVHTXHQWLDO
W5
Figure 26: Read Operation with CE don’t-care.
System Interface Using CE don’t care
To simplify system interface, CE signal is ignored during data loading or sequential data-reading as shown below.
So, it is possible to connect NAND Flash to a microprocessor. The only function that was removed from standard NAND
Flash to make CE don’t care read operation was disabling of the automatic sequential read function.
&(GRQ¶WFDUH
K
6WDUW$GG&\FOH
'DWD,QSXW
K
'DWD,QSXW
&/(
&(
:(
$/(
,2[
Figure 25: Program Operation with CE don’t-care.