AM41LV3204MB10IT AMD [Advanced Micro Devices], AM41LV3204MB10IT Datasheet - Page 20
AM41LV3204MB10IT
Manufacturer Part Number
AM41LV3204MB10IT
Description
Stacked Multi-chip Package (MCP) 32 Mbit (4 M x 8 bit/2 M x 16-bit) Flash Memory and 4 Mbit (512K x 8-Bit/256 K x 16-Bit) Static RAM
Manufacturer
AMD [Advanced Micro Devices]
Datasheet
1.AM41LV3204MB10IT.pdf
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the standby mode, the maximum input load current is
increased. See the table in “DC Characteristics”.
If the system asserts V
vice reverts to whether the top or bottom two sectors
were previously set to be protected or unprotected
using the method described in “Sector Group Protec-
tion and Unprotection”. Note: No external pullup is
necessary since the WP#/ACC pin has internal pullup
to V
Temporary Sector Group Unprotect
(Note: In this device, a sector group consists of four adjacent
sectors that are protected or unprotected at the same time
(see
This feature allows temporary unprotection of previ-
ously protected sector groups to change data in-sys-
tem. The Sector Group Unprotect mode is activated by
setting the RESET# pin to VID. During this mode, for-
merly protected sector groups can be programmed or
erased by selecting the sector group addresses. Once
V
ously protected sector groups are protected again.
Figure 1 shows the algorithm, and Figure 23 shows
the timing diagrams, for this feature.
June 10, 2003
ID
CC
is removed from the RESET# pin, all the previ-
Table
6).
IH
on the WP#/ACC pin, the de-
P R E L I M I N A R Y
Am41LV3204M
Notes:
1. All protected sector groups unprotected (If WP# = V
2. All previously protected sector groups are protected
the first or last sector will remain protected).
once again.
Figure 1. Temporary Sector Group
Unprotect Operation
Program Operations
Completed (Note 2)
Temporary Sector
Perform Erase or
Group Unprotect
RESET# = V
RESET# = V
(Note 1)
START
ID
IH
IL
19
,
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