SST39VF400A-70-4I-EK Microchip Technology, SST39VF400A-70-4I-EK Datasheet - Page 24

• Manufacturer Part Number: SST39VF400A-70-4I-EK
• Description: Flash 256K X 16 70ns
• Manufacturer: Microchip Technology

Specifications of SST39VF400A-70-4I-EK

• Data Bus Width: 16 bit
• Memory Type: NOR
• Memory Size: 4 Mbit
• Architecture: Sectored
• Interface Type: CFI
• Access Time: 70 ns
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Current: 30 mA
• Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TSOP-48
• Organization: 256 KB x 16
• Lead Free Status / Rohs Status: No RoHS Version Available

Data Sheet
©2010 Silicon Storage Technology, Inc.
FIGURE 20: Software ID/CFI Command Flowcharts
Command Sequence
Load data: XXAAH
Load data: XX55H
Load data: XX98H
CFI Query Entry
Address: 2AAAH
Address: 5555H
Address: 5555H
Read CFI data
Wait T IDA
Command Sequence
Software ID Entry
Load data: XXAAH
Load data: XX55H
Load data: XX90H
Read Software ID
Address: 2AAAH
Address: 5555H
Address: 5555H
Wait T IDA
Note:
X can be V IL or V IH , but no other value.
SST39VF200A / SST39VF400A / SST39VF800A
SST39LF200A / SST39LF400A / SST39LF800A
2 Mbit / 4 Mbit / 8 Mbit Multi-Purpose Flash
24
Load data: XXAAH
Load data: XX55H
Load data: XXF0H
Address: 2AAAH
Return to normal
Address: 5555H
Address: 5555H
Wait T IDA
operation
Software ID Exit/CFI Exit
Command Sequence
Load data: XXF0H
Return to normal
Address: XXH
Wait T IDA
operation
S71117-13-000
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