SST39VF400A-70-4C-MAQE-T Microchip Technology, SST39VF400A-70-4C-MAQE-T Datasheet - Page 10

• Manufacturer Part Number: SST39VF400A-70-4C-MAQE-T
• Description: 2.7V To 3.6V 4Mbit Multi-Purpose Flash 48 WFBGA 4x6x0.8 Mm T/R
• Manufacturer: Microchip Technology
• Series: -r

Specifications of SST39VF400A-70-4C-MAQE-T

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 4M (256K x 16)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 48-WFBGA
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

A Microchip Technology Company
© 2011 Silicon Storage Technology, Inc.
Operations
Product Identification Mode Exit/CFI Mode Exit
In order to return to the standard Read mode, the Software Product Identification mode must be exited.
Exit is accomplished by issuing the Software ID Exit command sequence, which returns the device to
the Read mode. This command may also be used to reset the device to the Read mode after any inad-
vertent transient condition that apparently causes the device to behave abnormally, e.g., not read cor-
rectly. Please note that the Software ID Exit/CFI Exit command is ignored during an internal Program
or Erase operation. See Table 4 for software command codes, Figure 15 for timing waveform, and Fig-
ure 20 for a flowchart.
Table 3: Operation Modes Selection
Table 4: Software Command Sequence
Mode
Read
Program
Erase
Standby
Write Inhibit
Product Identification
Software Mode
Command
Sequence
Word-Program
Sector-Erase
Block-Erase
Chip-Erase
Software ID
Entry
CFI Query Entry
Software ID Exit
CFI Exit
Software ID Exit
CFI Exit
1. X can be V
1. Address format A
2. DQ
3. WA = Program word address
A
A
5,6
MS
MS
15
= Most significant address
= A
-DQ
16
8
for SST39LF/VF200A, A
can be V
IL
7
5
or V
7
/
/
5555H AAH
5555H AAH
5555H AAH
5555H AAH
5555H AAH
5555H AAH
5555H AAH
2 Mbit / 4 Mbit / 8 Mbit Multi-Purpose Flash
Write Cycle
Addr
IH
XXH
14
, but no other value.
1
-A
1st Bus
IL
0
or V
SST39VF200A / SST39VF400A / SST39VF800A
(Hex), Addresses A
SST39LF200A / SST39LF400A / SST39LF800A
Data
F0H
IH
, but no other value, for the Command sequence
2
CE#
V
V
V
V
V
X
X
IH
IL
IL
IL
IL
Addr
2AAAH
2AAAH
2AAAH
2AAAH
2AAAH
2AAAH
2AAAH
Write Cycle
17
2nd Bus
for SST39LF/VF400A, and A
OE#
1
V
V
V
V
V
X
X
IH
IH
IL
IL
IL
10
MS-
Data
55H
55H
55H
55H
55H
55H
55H
A
2
15
WE#
can be V
V
V
V
V
V
5555H
5555H
5555H
5555H
5555H
5555H
5555H
X
X
Addr
Write Cycle
IH
IH
IH
IL
IL
3rd Bus
1
IL
DQ
D
D
X
High Z
High Z/ D
High Z/ D
or V
OUT
IN
1
Data
A0H
80H
80H
80H
90H
98H
F0H
2
IH
18
, but no other value, for the Command sequence.
for SST39LF/VF800A
5555H
5555H
5555H
Addr
Write Cycle
WA
OUT
OUT
4th Bus
1
3
Data
Data
AAH
AAH
AAH
2
Address
A
A
Sector or Block address,
XXH for Chip-Erase
X
X
X
See Table 4
IN
IN
2AAAH
2AAAH
2AAAH
Addr
Write Cycle
5th Bus
1
Data
55H
55H
55H
2
DS25001A
5555H
Addr
Write Cycle
SA
BA
Data Sheet
6th Bus
1
X
X
4
4
T3.4 25001
T4.3 25001
Data
30H
50H
10H
2
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