
4
Rev. 4.1/May 01
HY29F002T
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-
-
SIGNAL DESCRIPTIONS
MEMORY ARRAY ORGANIZATION
The 256 Kbyte Flash memory array is organized
into seven blocks called
sectors
(S0, S1, . . . ,
S6). A sector is the smallest unit that can be
erased and which can be protected to prevent
accidental or unauthorized erasure. See the
‘
Bus
Operations
’
and
‘
Command Definitions
’
sections
of this document for additional information on these
functions.
Table 1. HY29F002T Memory Array Organization
In the HY29F002T, four of the sectors, which com-
prise the
boot block
, vary in size from 8 to 32
Kbytes, while the remaining three sectors are
uniformly sized at 64 Kbytes. In this device, the
boot block is located at the top of the address
range.
Table 1 defines the sector addresses and corre-
sponding address ranges for the HY29F002T.
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