Datasheet
©2012 Silicon Storage Technology, Inc. DS25023B 06/13
18
1 Mbit / 2 Mbit / 4 Mbit Multi-Purpose Flash
SST39LF010 / SST39LF020 / SST39LF040
SST39VF010 / SST39VF020 / SST39VF040
Data Sheet
Figure 12:Software ID Exit and Reset
Figure 13:AC Input/Output Reference Waveforms
Figure 14:A Test Load Example
1150 F10.0
ADDRESS A
14-0
DQ
7-0
T
IDA
T
WP
T
WHP
WE#
SW0 SW1 SW2
5555 2AAA 5555
THREE-BYTE SEQUENCE FOR
SOFTWARE ID EXIT AND RESET
OE#
CE#
AA 55 F0
1150 F12.1
REFERENCE POINTS OUTPUTINPUT
V
IT
V
IHT
V
ILT
V
OT
AC test inputs are driven at V
IHT
 (0.9 V
DD
) for a logic “1” and V
ILT
 (0.1 V
DD
) for a logic
“0”. Measurement reference points for inputs and outputs are V
IT
 (0.5 V
DD
) and V
OT
 (0.5 V
DD
). Input
rise and fall times (10% 
↔ 90%) are <5 ns.
Note: V
IT 
- V
INPUT
 Test
V
OT
 - V
OUTPUT
 Test
V
IHT
 - V
INPUT
 HIGH Test
V
ILT
 - V
INPUT
 LOW Test
1150 F11.1
TO TESTER
TO DUT
C
L










