M36W432BG ST Microelectronics, M36W432BG Datasheet - Page 10
M36W432BG
Manufacturer Part Number
M36W432BG
Description
32 Mbit 2Mb x16 / Boot Block Flash Memory and 4 Mbit 256Kb x16 SRAM / Multiple Memory Product
Manufacturer
ST Microelectronics
Datasheet
1.M36W432BG.pdf
(66 pages)
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M36W432TG, M36W432BG
FUNCTIONAL DESCRIPTION
The Flash and SRAM components have separate
power supplies and grounds and are distinguished
by three chip enable inputs: E
ory and, E1
Recommended operating conditions do not allow
both the Flash and the SRAM to be in active mode
at the same time. The most common example is
Figure 4. Functional Block Diagram
10/66
S
A18-A20
and E2
A0-A17
WP
UB
RP
E1
E2
LB
W
W
G
G
E
S
S
S
S
S
S
F
F
F
F
F
S
for the SRAM.
F
for the Flash mem-
V
V
DDS
DDF
Flash Memory
32 Mbit (x16)
4 Mbit (x16)
SRAM
V
V
DDQF
SSS
simultaneous read operations on the Flash and
the SRAM which would result in a data bus con-
tention. Therefore it is recommended to put the
SRAM in the high impedance state when reading
the Flash and vice versa (see Table 2 Main Oper-
ation Modes for details).
V
V
PPF
SSF
DQ0-DQ15
AI07926
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