©2011 Silicon Storage Technology, Inc. DS25034A 09/11
28
4 Mbit (x16) Multi-Purpose Flash
SST39WF400B
Data Sheet
Microchip Technology Company
Product Ordering Information
Valid combinations for SST39WF400B
SST39WF400B-70-4C-B3KE SST39WF400B-70-4I-B3KE
SST39WF400B-70-4C-CAQE SST39WF400B-70-4I-CAQE
SST39WF400B-70-4C-MAQE SST39WF400B-70-4I-MAQE
Note:Valid combinations are those products in mass production or will be in mass production. Consult your SST
sales representative to confirm availability of valid combinations and to determine availability of new combi-
nations.
SST 39 WF 400B - 70 - 4C - B3KE
XX XX XXXX - XX - XX
-
XXXX
Environmental Attribute
E
1
= non-Pb
Package Modifier
K = 48 balls
Q = 48 balls (66 possible positions)
Package Type
B3 = TFBGA
CA = XFLGA
MA = WFBGA
Temperature Range
C = Commercial = 0°C to +70°C
I = Industrial = -40°C to +85°C
Minimum Endurance
4 = 10,000 cycles
Read Access Speed
70 = 70 ns
Device Density
400 = 4 Mbit
Voltage
W = 1.65-1.95V
Product Series
39 = Multi-Purpose Flash
1. Environmental suffix “E” denotes non-Pb sol-
der. SST non-Pb solder devices are “RoHS
Compliant”.