k9f1608w0a-tcb0 Samsung Semiconductor, Inc., k9f1608w0a-tcb0 Datasheet - Page 11

• Manufacturer Part Number: k9f1608w0a-tcb0
• Description: 2m X 8 Bit Nand Flash Memory
• Manufacturer: Samsung Semiconductor, Inc.

K9F1608W0A-TCB0, K9F1608W0A-TIB0
NAND Flash Technical Notes (Continued)
Erase Flow Chart
Block Replacement
*
Erase Error
Buffer
memory
: If erase operation results in an error, map out
the failing block and replace it with another block.
*
error occurs
No
Write Block Address
Erase Completed
or R/B = 1 ?
SR. 0 = 0 ?
SR. 6 = 1 ?
Write D0H
Write 70H
Write 60H
Start
Yes
Yes
No
Block A
Block B
11
Reclaim the Error
Read Flow Chart
When the error happens in Block "A", try to write the
data into another Block "B" by reloading from an exter-
nal buffer. Then, prevent further system access to
Block "A"(by creating a "invalid block" table or other
appropriate scheme.)
No
Page Read Completed
FLASH MEMORY
ECC Generation
Write Address
Verify ECC
Read Data
Write 00H
Start
Yes