256Mb and 512Mb (256Mb/256Mb), P30-65nm
Program Operation
Program Protection
When VPP = VIL, absolute hardware write protection is provided for all device blocks. If
VPP is at or below VPPLK, programming operations halt and SR.3 is set indicating a VPP
level error. Block lock registers are not affected by the voltage level on VPP; they may still
be programmed and read, even if VPP is less than VPPLK
-
.
Figure 11: Example VPP Supply Connections
VCC
VPP
VCC
VPP
VCC
VCC
VPP
PROT#
<
10K Ω
-Factory programming with VPP = VPPH
-Complete with program/erase
-Low voltage programming only
-Logic control of device protection
protection when VPP
<
VPPLK
VCC
VCC
VPP
VCC
VCC
VPP
VPP
V
PPH
=
-Low voltage and factory programming
-Low voltage programming only
-Full device protection unavailable
PDF: 09005aef84566799
p30_65nm_MLC_256Mb-512mb.pdf - Rev. A 1/13 EN
Micron Technology, Inc. reserves the right to change products or specifications without notice.
37
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