Datasheet

©2011 Silicon Storage Technology, Inc. DS25040A 05/11
25
16 Mbit Multi-Purpose Flash Plus
SST39VF1681 / SST39VF1682
Data Sheet
A
Microchip Technology Company
Figure 18:AC Input/Output Reference Waveforms
Figure 19:A Test Load Example
1243 F16.0
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”. Mea-
surement 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
1243 F17.0
TO TESTER
TO DUT
C
L