SST39SF040-55-4I-WHE Microchip Technology, SST39SF040-55-4I-WHE Datasheet - Page 18

• Manufacturer Part Number: SST39SF040-55-4I-WHE
• Description: 4.5V To 5.5V 4Mbit Multi-Purpose Flash 32 TSOP 8x14 Mm TRAY
• Manufacturer: Microchip Technology

Specifications of SST39SF040-55-4I-WHE

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 4M (512K x 8)
• Speed: 55ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TFSOP (0.315", 8.00mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Data Sheet
©2010 Silicon Storage Technology, Inc.
FIGURE 18: Software Product Command Flowcharts
Software Product ID Entry
Command Sequence
Read Software ID
Address: 2AAAH
Load data: AAH
Address: 5555H
Address: 5555H
Load data: 55H
Load data: 90H
Wait T IDA
SST39SF010A / SST39SF020A / SST39SF040
Address: 2AAAH
Return to normal
Address: 5555H
Address: 5555H
Load data: AAH
Load data: 55H
Load data: F0H
1 Mbit / 2 Mbit / 4 Mbit Multi-Purpose Flash
Wait T IDA
operation
18
Reset Command Sequence
Software Product ID Exit &
Return to normal
Load data: F0H
Address: XXH
Wait T IDA
operation
1147 F15.1
S71147-09-000
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