MT29C4G48MAZAPAKD-5 E IT Micron, MT29C4G48MAZAPAKD-5 E IT Datasheet - Page 89
MT29C4G48MAZAPAKD-5 E IT
Manufacturer Part Number
MT29C4G48MAZAPAKD-5 E IT
Description
Manufacturer
Micron
Datasheet
1.MT29C4G48MAZAPAKD-5_IT.pdf
(218 pages)
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LOCK (2Ah)
Figure 61: LOCK Operation
PDF: 09005aef83ba4387
168ball_nand_lpddr_j42p_j4z2_j4z3_omap.pdf – Rev. H 3/11
By default at power-on, if LOCK is HIGH, all the blocks are locked and protected from
PROGRAM and ERASE operations. If portions of the device are unlocked using the UN-
LOCK (23h) command, they can be locked again using the LOCK (2Ah) command. The
LOCK command locks all of the blocks in the device. Locked blocks are write-protected
from PROGRAM and ERASE operations.
To lock all of the blocks in the device, issue the LOCK (2Ah) command.
When a PROGRAM or ERASE operation is issued to a locked block, R/B# goes LOW for
t
mand reports bit 7 as 0, indicating that the block is protected.
The LOCK (2Ah) command is disabled if LOCK is LOW at power-on or if the device is
locked tight.
WE#
LBSY. The PROGRAM or ERASE operation does not complete. Any READ STATUS com-
I/Ox
CE#
CLE
LOCK command
2Ah
168-Ball NAND Flash and LPDDR PoP (TI OMAP) MCP
89
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2009 Micron Technology, Inc. All rights reserved.
Block Lock Feature
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