MT29F8G08FACWP Micron Technology, MT29F8G08FACWP Datasheet - Page 36

• Manufacturer Part Number: MT29F8G08FACWP
• Description: NAND Flash Memory
• Manufacturer: Micron Technology

OTP DATA PROTECT A5h-10h
Figure 29:
PDF: 09005aef814b01a2 / Source: 09005aef814b01c7
2_4_8gb_nand_m49a__2.fm - Rev. A 3/06 EN
www.DataSheet4U.net
WE#
R/B#
I/Ox
CE#
ALE
RE#
CLE
OTP DATA PROTECT
Command
OTP DATA PROTECT
A5h
t WC
Notes: 1. OTP data is protected following “good” status confirmation.
00h
Col
The OTP DATA PROTECT (A5h-10h) command is used to protect the data in the OTP
area. After the data is protected it cannot be programmed further. When the OTP area is
protected, the pages within the area are no longer programmable and cannot be unpro-
tected.
To use the OTP DATA PROTECT command, issue the A5h command. Next, issue the fol-
lowing five address cycles: 00h-00h-01h-00h-00h. Finally, issue the 10h command.
R/B# goes LOW while the OTP area is being protected. The protect command duration is
similar to a normal page programming operation,
command is the only command valid during the OTP DATA PROTECT operation. Bit 5 of
the status register will reflect the state of R/B#.
When the device is ready, read bit 0 of the status register to determine if the operation
passed or failed (see Table 11 on page 28).
00h
Col
01h
00h
00h
36
2Gb, 4GB, 8Gb: x8, x16 NAND Flash Memory
PROGRAM
Command
10h
Micron Technology, Inc., reserves the right to change products or specifications without notice.
t WB
t PROG
t
PROG. The READ STATUS (70h)
Command Definitions
READ STATUS
Command
OTP data protected 1
©2005 Micron Technology, Inc. All rights reserved.
70h
Don’t Care
Status