m58lw032d STMicroelectronics, m58lw032d Datasheet - Page 13

• Manufacturer Part Number: m58lw032d
• Description: 32 Mbit 4mb X8, 2mb X16, Uniform Block 3v Supply Flash Memory
• Manufacturer: STMicroelectronics

READ MODES
Read operations in the M58LW032D are asyn-
chronous. The device outputs the data corre-
sponding to the address latched, that is the
memory array, Status Register, Common Flash In-
terface, Electronic Signature or Block Protection
Status depending on the command issued.
During read operations, if the bus is inactive for a
time equivalent to t
enters Auto Low Power mode. In this mode the in-
ternal supply current is reduced to the Auto Low
Power supply current, I
puts will still output data if a Bus Read operation is
in progress.
Read operations can be performed in two different
ways, Random Read (where each Bus Read oper-
ation accesses a different Page) and Page Read.
AVQV
DD5
, the device automatically
. The Data Inputs/Out-
In Page Read mode a Page of data is internally
read and stored in a Page Buffer. Each memory
page is a 4 Words or 8 Bytes and has the same
A3-A21. In x8 mode only A0, A1 and A2 may
change, in x16 mode only A1 and A2 may change.
The first read operation within the Page has the
normal access time (t
within the same Page have much shorter access
times (t
mal, longer timings apply again.
See
Table 16., Page Read AC
tails on when the outputs become valid.
Figure 10., Page Read AC
AVQV1
). If the Page changes then the nor-
AVQV
Characteristics, for de-
), subsequent reads
Waveforms, and
M58LW032D
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