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SST39WF400A Datasheet

  • SST39WF400A

  • 4 Mbit (x16) Multi-Purpose Flash

  • 376.53KB

  • SST   SST

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4 Mbit Multi-Purpose Flash
SST39WF400A
Data Sheet
TABLE 2: P
IN
D
ESCRIPTION
Symbol
A
MS1
-A
0
DQ
15
-DQ
0
Pin Name
Address Inputs
Data Input/output
Functions
To provide memory addresses. During Sector-Erase A
MS
-A
11
address lines will select the
sector. During Block-Erase A
MS
-A
15
address lines will select the block.
To output data during Read cycles and receive input data during Write cycles.
Data is internally latched during a Write cycle.
The outputs are in tri-state when OE# or CE# is high.
To activate the device when CE# is low.
To gate the data output buffers.
To control the Write operations.
To provide power supply voltage:
Unconnected pins.
T2.0 1220
CE#
OE#
WE#
V
DD
V
SS
NC
Chip Enable
Output Enable
Write Enable
Power Supply
Ground
No Connection
1.65-1.95V for SST39WF400A
1. A
MS
= Most significant address
A
MS
= A
17
for SST39WF400A
TABLE 3: O
PERATION
M
ODES
S
ELECTION
Mode
Read
Program
Erase
Standby
Write Inhibit
Product Identification
Software Mode
V
IL
V
IL
V
IH
See Table 4
T3.0 1220
CE#
V
IL
V
IL
V
IL
V
IH
X
X
OE#
V
IL
V
IH
V
IH
X
V
IL
X
WE#
V
IH
V
IL
V
IL
X
X
V
IH
DQ
D
OUT
D
IN
X
1
High Z
High Z/ D
OUT
High Z/ D
OUT
Address
A
IN
A
IN
Sector or Block address,
XXH for Chip-Erase
X
X
X
1. X can be V
IL
or V
IH
, but no other value.
漏2004 Silicon Storage Technology, Inc.
S71220-05-000
6/04
6

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