4 Mbit SPI Serial Flash
SST25VF040B
Data Sheet
V
IHT
V
V
HT
HT
INPUT?
REFERENCE POINTS
OUTPUT
V
V
LT
LT
V
ILT
1295 IORef.0
AC test inputs are driven at VIHT (0.9VDD) for a logic “1” and VILT (0.1VDD) for a logic “0”. Measurement reference points
for inputs and outputs are VHT (0.6VDD) and VLT (0.4VDD). Input rise and fall times (10% ↔ 90%) are <5 ns.
Note: VHT - VHIGH Test
V
V
V
LT - VLOW Test
IHT - VINPUT HIGH Test
ILT - VINPUT LOW Test
FIGURE 26: AC Input/Output Reference Waveforms
TO TESTER
TO DUT
C
L
1295 TstLd.0
FIGURE 27: A Test Load Example
©2009 Silicon Storage Technology, Inc.
S71295-05-000
10/09
28
SST [ SILICON STORAGE TECHNOLOGY, INC ]
