NOTE: 1. The NAND Flash memory may include invalid blocks when first shipped. Additional invalid blocks may develop while being used. The number of valid blocks is presented with both cases of invalid blocks considered. Invalid blocks are defined as blocks that contain one or more bad bits Do not try to access these invalid blocks for program and erase. Refer to the attached technical notes for a appropriate management of invalid blocks. 2. The lst block, which is placed on OOh block address, is fully guaranteed to be a valid block, does not require Error Correction.
PC74HCT253D PC74HCT253D PC74HCT253D on stock| CLOCK | CLOCK ENABLE | CLEAR | DECODED OUTPUT(H) |
| X | X | H | QO |
| L | X | L | Qn |
| X | H | L | Qn |
| j | L | L | Qn+l |
| 1 | L | L | Qn |
| H | j | L | Qn |
| H | z | L | Qn+l |
| | | |
