RC28F128M29EWLA NUMONYX, RC28F128M29EWLA Datasheet - Page 95

• Manufacturer Part Number: RC28F128M29EWLA
• Description: IC FLASH 128MBIT 25NS 64BGA
• Manufacturer: NUMONYX
• Series: Axcell™r

Specifications of RC28F128M29EWLA

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 128M (16Mx8, 8Mx16)
• Speed: 60ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Numonyx
Appendix C
C.1
®
Axcell™ M29EW
The M29EW has an extra block, the Extended Memory Block, that can be accessed using a
dedicated command. This Extended Memory Block is 128 words in x16 mode and 256 bytes
in x8 mode. It is used as a security block (to provide a permanent security identification
number) or to store additional information.
The device can be shipped either with the Extended Memory Block pre-locked by Numonyx,
or unlocked.
If the Extended Memory Block is not pre-locked by Numonyx, it can be customer-lockable.
Its status is indicated by bit DQ7 of Extended Memory Block Verify Indicator in Auto Select
mode. This bit is permanently set to either ‘1’ or ‘0’ at the Numonyx factory and cannot be
changed. When set to ‘1’, it indicates that the device is pre-locked by Numonyx and the
Extended Memory Block is protected. When set to ‘0’, it indicates that the device is
customer-lockable. Bit DQ7 being permanently locked to either ‘1’ or ‘0’ is another security
feature which ensures that a customer-lockable device cannot be used instead of a
Numonyx pre-locked one.
Bit DQ7 is the most significant bit in the Extended Memory Block Verify Indicator. It can be
read in Auto Select mode using either the Programmer (see
system method (see
The Extended Memory Block can only be accessed when the device is in Extended Memory
Block mode. For details of how the Extended Memory Block mode is entered and exited,
refer to the
Extended Memory Block
Numonyx pre-locked Extended Memory Block
If devices of which the Extended Memory Block is pre-locked upon customer request, the
128bits security identification number is written to the Extended Memory Block address
space (see
contents in the Extended Memory Block cannot be changed any more.
Section 6.3.1: Enter Extended Memory Block command
Table 41: Extended Memory Block address and
Extended Memory Block
Table 9
command, and to
and
Table
208031-04
10).
Table 13
and
Table
data) in Numonyx factory. The
Table 7
9.
Extended Memory Block
and
and
Section 6.3.2: Exit
Table
8) or the In-
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