MT29F1G08ABBHC-ET Micron, MT29F1G08ABBHC-ET Datasheet - Page 37

• Manufacturer Part Number: MT29F1G08ABBHC-ET
• Description: NAND Flash Memory; Density: 1Gb; Organization: 128Mbx8; Bits/Cell: SLC; I/O: Common; Supply Voltage: 1.8V; Operating Temperature Range: -40° to +85°C; Package: 63-VFBGA
• Manufacturer: Micron

OTP DATA PROTECT A5h-10h
Figure 26:
PDF: 09005aef81dc05df / Source: 09005aef821d5f08
1gb_nand_m48a__2.fm - Rev. E 1/08 EN
WE#
R/B#
ALE
I/Ox
CE#
RE#
CLE
PROTECT command
OTP DATA
OTP DATA PROTECT
A5h
t WC
Notes: 1. OTP data is protected following “good” status confirmation.
The OTP DATA PROTECT (A5h-10h) command is used to protect all 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 4 ADDRESS cycles: 00h-00h-01h-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,
mand is the only command valid during the OTP DATA PROTECT operation. For this
operation, bits 5 and 6 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 9 on page 29).
00h
Col
OTP address
00h
Col
01h
00h
37
PROGRAM
command
10h
Micron Technology, Inc., reserves the right to change products or specifications without notice.
t WB
1Gb: x8, x16 NAND Flash Memory
t PROG
t
PROG. The READ STATUS (70h) com-
Command Definitions
READ STATUS
command
©2006 Micron Technology, Inc. All rights reserved.
OTP data protected
70h
Don’t Care
Status
1